question stringlengths 53 270 | choice listlengths 4 4 | answer stringlengths 8 167 | id stringlengths 8 26 | audio_url stringlengths 35 53 | question_type stringclasses 7
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|---|---|---|---|---|---|
Which of the following statements is true about the species that produced the sound in the given recording? | [
"A. It is known to form pods with other species, including bottlenose dolphins.",
"B. It constructs dens in underwater caves for shelter.",
"C. It primarily feeds on plankton and krill as its main diet.",
"D. It is restricted to polar regions and cannot survive in tropical waters."
] | A. It is known to form pods with other species, including bottlenose dolphins. | 6102100W | ../../local_audio_path/6102100W.wav | remember |
Based on the sound recording, which of the following best describes the acoustic characteristics of the signal? | [
"A. A single high-frequency tone above 30 kHz, with no background noise.",
"B. A modulated high-frequency signal around 20–30 kHz, accompanied by faint intermittent background activity.",
"C. A continuous low-frequency sound below 5 kHz with minimal variation in amplitude.",
"D. A steady mid-frequency tone be... | B. A modulated high-frequency signal around 20–30 kHz, accompanied by faint intermittent background activity. | 61021012 | ../../local_audio_path/61021012.wav | understand_acoustics |
What type of vocalization is most likely represented in the provided sound recording? | [
"A. Rhythmic drumming sounds",
"B. Whistles and clicks",
"C. Low-frequency growls",
"D. Complex trills and chirps"
] | B. Whistles and clicks | 61023001 | ../../local_audio_path/61023001.wav | vocalization |
Given the following sound sequence: Sound 1 occurs before the first silence, Sound 2 occurs after the first silence, and Sound 3 occurs after the second silence. Which sound has the highest pitch? | [
"A. Sound 1",
"B. Sound 2",
"C. Sound 3",
"D. All sounds have the same highest pitch"
] | B. Sound 2 | 61023001_8501300J_61025003 | ../../local_audio_path/61023001_8501300J_61025003.wav | apply_frequency |
Given the following sound sequence: The first sound occurs before the first silence, the second sound occurs after the first silence, and the third sound occurs after the second silence. Which sound has the longest duration? | [
"A. The first sound",
"B. The second sound",
"C. The third sound",
"D. All sounds are indistinguishable in duration"
] | A. The first sound | 61023001_91010019_65030009 | ../../local_audio_path/61023001_91010019_65030009.wav | apply_duration |
Given the following sound sequence: Sound 1 occurs before the first silence, Sound 2 occurs after the first silence, and Sound 3 occurs after the second silence. Which sound has the longest duration? | [
"A. Sound 1",
"B. Sound 2",
"C. Sound 3",
"D. All sounds are indistinguishable in duration"
] | A. Sound 1 | 61023001_93570007_6102602K | ../../local_audio_path/61023001_93570007_6102602K.wav | apply_duration |
Given the following sound sequence: The first sound occurs before the first silence, the second sound occurs after the first silence, and the third sound occurs after the second silence. Which sound has the highest pitch? | [
"A. The first sound",
"B. The second sound",
"C. The third sound",
"D. All the same"
] | A. The first sound | 61023005_9100800E_7501400M | ../../local_audio_path/61023005_9100800E_7501400M.wav | apply_frequency |
What is a known threat to the species that produced the sound in the given recording? | [
"A. Entanglement in fishing gear, leading to drowning or injury",
"B. Habitat destruction due to coral reef bleaching",
"C. Predation by great white sharks in coastal areas",
"D. Dependence on freshwater habitats that are shrinking"
] | A. Entanglement in fishing gear, leading to drowning or injury | 61023006 | ../../local_audio_path/61023006.wav | remember |
Given the following sound sequence: The first sound occurs before the first silence, the second sound occurs after the first silence, and the third sound occurs after the second silence. Which sound is most dominant in higher frequencies? | [
"A. The first sound",
"B. The second sound",
"C. The third sound",
"D. All the same"
] | A. The first sound | 61023006_8300200B_6503300J | ../../local_audio_path/61023006_8300200B_6503300J.wav | apply_frequency |
Based on the sound recording, which of the following best describes the acoustic characteristics of the signal? | [
"A. A series of high-frequency tones above 20 kHz, with intermittent rapid variations in intensity.",
"B. A continuous low-frequency hum below 1 kHz, with minimal variation over time.",
"C. Broadband noise spread evenly across all frequencies without distinct tonal elements.",
"D. A single mid-frequency tone ... | A. A series of high-frequency tones above 20 kHz, with intermittent rapid variations in intensity. | 6102300F | ../../local_audio_path/6102300F.wav | understand_acoustics |
Based on the acoustic characteristics of the sound recording, which of the following best describes the signal observed in the spectrogram? | [
"A. A high-frequency tone above 30 kHz with no visible harmonics.",
"B. A low-frequency rumble below 1 kHz with scattered noise across all frequencies.",
"C. A series of harmonically related tones starting around 4 kHz and extending to higher frequencies, with steady intensity over time.",
"D. A broadband noi... | C. A series of harmonically related tones starting around 4 kHz and extending to higher frequencies, with steady intensity over time. | 6102300R | ../../local_audio_path/6102300R.wav | understand_acoustics |
What type of vocalization is most likely represented in the given sound recording? | [
"A. A single tonal whistle with intermittent clicks",
"B. Rapid echolocation clicks with no tonal components",
"C. A continuous modulated whistle without clicks",
"D. A series of short chirps in quick succession"
] | A. A single tonal whistle with intermittent clicks | 6102300X | ../../local_audio_path/6102300X.wav | vocalization |
What is a notable characteristic of the species that produced the sound in the given recording? | [
"A. It has a tendency to mass strand due to its highly social nature.",
"B. It relies on coral reefs as a primary habitat and source of food.",
"C. It uses baleen plates to filter-feed on krill and plankton.",
"D. It is primarily found in polar regions and feeds on seals."
] | A. It has a tendency to mass strand due to its highly social nature. | 6102301E | ../../local_audio_path/6102301E.wav | remember |
Based on the sound recording, which of the following best describes the acoustic characteristics of the signal? | [
"A. A continuous high-frequency tone above 15 kHz with no modulation and no harmonics.",
"B. A series of modulated high-frequency tones between 5–15 kHz, with distinct harmonics and variations over time.",
"C. A low-frequency rumbling sound below 1 kHz, with scattered noise across all frequencies.",
"D. A mid... | B. A series of modulated high-frequency tones between 5–15 kHz, with distinct harmonics and variations over time. | 61025003 | ../../local_audio_path/61025003.wav | understand_acoustics |
Given the following sound sequence: The first sound occurs before the first silence, the second sound occurs after the first silence, and the third sound occurs after the second silence. Which sound is most dominant in higher frequencies? | [
"A. The first sound",
"B. The second sound",
"C. The third sound",
"D. All the sounds are equally dominant in higher frequencies"
] | B. The second sound | 6102500A_7101001F_59029002 | ../../local_audio_path/6102500A_7101001F_59029002.wav | apply_frequency |
Which species and vocalization type is most consistent with the sound recording provided? | [
"A. Atlantic Spotted Dolphin (Stenella frontalis) producing whistles and pulsed clicks",
"B. Bottlenose Dolphin (Tursiops truncatus) producing tonal whistles with no clicks",
"C. Spinner Dolphin (Stenella longirostris) producing rapid burst-pulse sounds",
"D. Sperm Whale (Physeter macrocephalus) producing reg... | A. Atlantic Spotted Dolphin (Stenella frontalis) producing whistles and pulsed clicks | 6102500C | ../../local_audio_path/6102500C.wav | both |
Which species is identified from the sound in the recording? | [
"A. Spinner Dolphin (Stenella longirostris)",
"B. Atlantic Spotted Dolphin (Stenella frontalis)",
"C. Pantropical Spotted Dolphin (Stenella attenuata)",
"D. Common Dolphin (Delphinus delphis)"
] | B. Atlantic Spotted Dolphin (Stenella frontalis) | 6102500D | ../../local_audio_path/6102500D.wav | species |
Based on the sound recording, which of the following most accurately describes the acoustic characteristics of the signal? | [
"A. A series of high-frequency modulating tones above 10 kHz, with distinct frequency sweeps over time.",
"B. A continuous mid-frequency hum between 3–7 kHz, with no significant variations.",
"C. Sporadic bursts of low-frequency sound below 1 kHz, accompanied by harmonic overtones.",
"D. A steady broadband no... | A. A series of high-frequency modulating tones above 10 kHz, with distinct frequency sweeps over time. | 6102500I | ../../local_audio_path/6102500I.wav | understand_acoustics |
Given the following sound sequence: The first sound occurs before the first silence, the second sound occurs after the first silence, and the third sound occurs after the second silence. Which sound has the longest duration? | [
"A. The first sound",
"B. The second sound",
"C. The third sound",
"D. All sounds are indistinguishable in duration"
] | C. The third sound | 6102500N_67010007_66002A01 | ../../local_audio_path/6102500N_67010007_66002A01.wav | apply_duration |
Given the following sound sequence: Sound 1 occurs before the first silence, Sound 2 occurs after the first silence, and Sound 3 occurs after the second silence. Which sound has the longest duration? | [
"A. Sound 1",
"B. Sound 2",
"C. Sound 3",
"D. All sounds are indistinguishable in duration"
] | C. Sound 3 | 6102500N_72019001_7200200M | ../../local_audio_path/6102500N_72019001_7200200M.wav | apply_duration |
Based on the acoustic characteristics of the sound, which of the following best describes the main features observed in the recording? | [
"A. High-frequency modulated tones above 10 kHz, with distinct harmonic patterns.",
"B. Low-frequency continuous tones below 500 Hz, with minimal variation in intensity.",
"C. Broad-spectrum noise evenly distributed across all frequencies, with no clear modulation.",
"D. Mid-frequency tones between 2–5 kHz, w... | A. High-frequency modulated tones above 10 kHz, with distinct harmonic patterns. | 6102500P | ../../local_audio_path/6102500P.wav | understand_acoustics |
Based on the sound recording, which of the following most accurately describes the acoustic characteristics of the signal? | [
"A. A low-frequency hum below 3 kHz with minimal variation over time.",
"B. Broad-spectrum noise with no distinct frequency patterns, spread evenly across all frequencies.",
"C. A high-pitched, modulating tone rising and falling within the 5–15 kHz range, with clear intensity peaks.",
"D. A continuous, steady... | C. A high-pitched, modulating tone rising and falling within the 5–15 kHz range, with clear intensity peaks. | 6102500Q | ../../local_audio_path/6102500Q.wav | understand_acoustics |
Which species is identified from the sound recording? | [
"A. Atlantic Spotted Dolphin (Stenella frontalis)",
"B. Bottlenose Dolphin (Tursiops truncatus)",
"C. Spinner Dolphin (Stenella longirostris)",
"D. Common Dolphin (Delphinus delphis)"
] | A. Atlantic Spotted Dolphin (Stenella frontalis) | 6102500R | ../../local_audio_path/6102500R.wav | species |
Which of the following statements is true about the species that produced the sound in the given recording? | [
"A. It is often found in cold polar waters, where it preys on krill and small fish.",
"B. It exhibits a spotted coloration that becomes more prominent with age.",
"C. It builds underwater nests using seagrass to raise its young.",
"D. It primarily migrates between freshwater rivers and coastal marine habitats... | B. It exhibits a spotted coloration that becomes more prominent with age. | 61026001 | ../../local_audio_path/61026001.wav | remember |
Given the following sound sequence: The first sound occurs before the first silence, the second sound occurs after the first silence, and the third sound occurs after the second silence. Which sound has the longest duration? | [
"A. The first sound",
"B. The second sound",
"C. The third sound",
"D. All sounds are indistinguishable in duration"
] | A. The first sound | 61026001_91013008_5801100U | ../../local_audio_path/61026001_91013008_5801100U.wav | apply_duration |
Which of the following statements is true about the species that produced the sound in the given recording? | [
"A. It is frequently found in the Pacific Ocean, especially near the coasts of Japan and Australia.",
"B. It is known for its distinctive spotted coloration that becomes more prominent with age.",
"C. It relies heavily on polar regions for feeding and breeding.",
"D. It is primarily found in freshwater river ... | B. It is known for its distinctive spotted coloration that becomes more prominent with age. | 61026004 | ../../local_audio_path/61026004.wav | remember |
Based on the sound recording, which of the following most accurately describes the acoustic characteristics of the signal? | [
"A. A high-pitched sound with modulating frequencies above 10 kHz and distinct harmonic patterns.",
"B. A continuous low-frequency tone below 1 kHz with minimal variation over time.",
"C. A steady mid-frequency tone in the range of 5–10 kHz with no significant harmonic content.",
"D. A broad-band noise spread... | A. A high-pitched sound with modulating frequencies above 10 kHz and distinct harmonic patterns. | 6102600G | ../../local_audio_path/6102600G.wav | understand_acoustics |
Which species is identified from the sound recording provided? | [
"A. Atlantic Spotted Dolphin (Stenella frontalis)",
"B. Bottlenose Dolphin (Tursiops truncatus)",
"C. Spinner Dolphin (Stenella longirostris)",
"D. Short-finned Pilot Whale (Globicephala macrorhynchus)"
] | A. Atlantic Spotted Dolphin (Stenella frontalis) | 6102601Z | ../../local_audio_path/6102601Z.wav | species |
Based on the sound recording, which of the following most accurately describes the acoustic characteristics of the signal? | [
"A. A series of high-pitched, modulated tones above 10 kHz with distinct harmonic structure and gaps in between.",
"B. A continuous low-frequency hum below 1 kHz with no distinct features or variations.",
"C. Broad-spectrum noise evenly distributed across all frequencies with no clear tonal patterns.",
"D. A ... | A. A series of high-pitched, modulated tones above 10 kHz with distinct harmonic structure and gaps in between. | 61026020 | ../../local_audio_path/61026020.wav | understand_acoustics |
Given the following sound sequence: The first sound occurs before the first silence, the second sound occurs after the first silence, and the third sound occurs after the second silence. Which sound has the most consistent frequency range throughout its duration? | [
"A. The first sound",
"B. The second sound",
"C. The third sound",
"D. Cannot determine"
] | C. The third sound | 61026020_89514017_91013001 | ../../local_audio_path/61026020_89514017_91013001.wav | apply_frequency |
Based on the sound recording, which of the following best describes the acoustic characteristics of the signal? | [
"A. A series of high-pitched tones above 20 kHz, with rapid modulations and clear harmonic structures.",
"B. A steady low-frequency hum below 500 Hz, with minimal variation over time.",
"C. A continuous noise pattern spread evenly across all frequencies, with no distinct tonal features.",
"D. A set of repeate... | A. A series of high-pitched tones above 20 kHz, with rapid modulations and clear harmonic structures. | 6102602J | ../../local_audio_path/6102602J.wav | understand_acoustics |
Which of the following statements is true about the species that produced the sound in the given recording? | [
"A. It is commonly found in polar regions and relies on ice for hunting.",
"B. It is listed as Critically Endangered due to habitat loss and overfishing.",
"C. It is occasionally targeted by harpoon fishermen but is not currently threatened by extinction.",
"D. It constructs nests in coastal areas to raise it... | C. It is occasionally targeted by harpoon fishermen but is not currently threatened by extinction. | 6102602K | ../../local_audio_path/6102602K.wav | remember |
Based on the acoustic characteristics of the sound, which of the following best describes the signal observed in the recording? | [
"A. A series of distinct high-frequency modulated tones above 10 kHz with visible harmonic structures.",
"B. A continuous low-frequency sound below 1 kHz with no noticeable frequency variation.",
"C. A broad-spectrum noise with uniform intensity across all frequencies and time.",
"D. A steady mid-frequency to... | A. A series of distinct high-frequency modulated tones above 10 kHz with visible harmonic structures. | 61026036 | ../../local_audio_path/61026036.wav | understand_acoustics |
What type of vocalization is most likely identified in the sound recording? | [
"A. Pulsed whistle",
"B. Long continuous tone",
"C. Rapid echolocation clicks",
"D. Modulated chirps"
] | A. Pulsed whistle | 6102603E | ../../local_audio_path/6102603E.wav | vocalization |
Given the following sound sequence: Sound 1 occurs before the first silence, Sound 2 occurs after the first silence, and Sound 3 occurs after the second silence. Which sound is most dominant in higher frequencies? | [
"A. Sound 1",
"B. Sound 2",
"C. Sound 3",
"D. All the same"
] | A. Sound 1 | 6102603F_6000900M_9220100V | ../../local_audio_path/6102603F_6000900M_9220100V.wav | apply_frequency |
Given the following sound sequence: Sound 1 occurs before the first silence, Sound 2 occurs after the first silence, and Sound 3 occurs after the second silence. Which sound has the longest duration? | [
"A. Sound 1",
"B. Sound 2",
"C. Sound 3",
"D. All sounds are indistinguishable in duration"
] | B. Sound 2 | 6102603F_62026009_6301900D | ../../local_audio_path/6102603F_62026009_6301900D.wav | apply_duration |
What type of vocalization is most likely represented in the sound recording? | [
"A. Pulsed whistle",
"B. Continuous tonal hum",
"C. Rapid echolocation clicks",
"D. Low-frequency growls"
] | A. Pulsed whistle | 6102603X | ../../local_audio_path/6102603X.wav | vocalization |
Given the following sound sequence: Sound 1 occurs before the first silence, Sound 2 occurs after the first silence, and Sound 3 occurs after the second silence. Which sound has the longest duration? | [
"A. Sound 1",
"B. Sound 2",
"C. Sound 3",
"D. All sounds are indistinguishable in duration"
] | B. Sound 2 | 6102603X_9101300X_71012001 | ../../local_audio_path/6102603X_9101300X_71012001.wav | apply_duration |
Which species is identified from the sound recording? | [
"A. Fin, Finback Whale (Balaenoptera physalus)",
"B. Humpback Whale (Megaptera novaeangliae)",
"C. Blue Whale (Balaenoptera musculus)",
"D. Sperm Whale (Physeter macrocephalus)"
] | A. Fin, Finback Whale (Balaenoptera physalus) | 61064008 | ../../local_audio_path/61064008.wav | species |
Which species and vocalization type is most likely represented by the sound recording? | [
"A. Blue Whale (Balaenoptera musculus) - Low-frequency calls around 10-20 Hz",
"B. Fin Whale (Balaenoptera physalus) - 5-21 Hz moans",
"C. Humpback Whale (Megaptera novaeangliae) - Complex melodic songs",
"D. Sperm Whale (Physeter macrocephalus) - Loud, rhythmic clicks"
] | B. Fin Whale (Balaenoptera physalus) - 5-21 Hz moans | 6106400A | ../../local_audio_path/6106400A.wav | both |
Given the following sound sequence: The first sound occurs before the first silence, the second sound occurs after the first silence, and the third sound occurs after the second silence. Which sound has the highest pitch? | [
"A. The first sound",
"B. The second sound",
"C. The third sound",
"D. All the same"
] | A. The first sound | 61072006_6000900M_64103006 | ../../local_audio_path/61072006_6000900M_64103006.wav | apply_frequency |
What is a characteristic behavior of the species that produced the sound in the given recording? | [
"A. Preferring to remain solitary and avoiding boats",
"B. Frequently forming supergroups of more than 300 individuals",
"C. Building nests in shallow waters for their young",
"D. Migrating to polar regions during the winter months"
] | B. Frequently forming supergroups of more than 300 individuals | 6107200H | ../../local_audio_path/6107200H.wav | remember |
Given the following sound sequence: The first sound occurs before the first silence, the second sound occurs after the first silence, and the third sound occurs after the second silence. Which sound has the longest duration? | [
"A. The first sound",
"B. The second sound",
"C. The third sound",
"D. All sounds are indistinguishable in duration"
] | B. The second sound | 6107200H_67009003_75003058 | ../../local_audio_path/6107200H_67009003_75003058.wav | apply_duration |
Based on the sound recording, which of the following most accurately describes the acoustic characteristics of the signal? | [
"A. High-frequency modulated tones above 15 kHz, with occasional rapid clicks.",
"B. Low-frequency continuous tones below 500 Hz, with no noticeable modulation.",
"C. Mid-frequency tones between 2–5 kHz, with steady amplitude and no sudden changes.",
"D. A broad spectrum of noise evenly distributed across all... | A. High-frequency modulated tones above 15 kHz, with occasional rapid clicks. | 6107200M | ../../local_audio_path/6107200M.wav | understand_acoustics |
Given the following sound sequence: The first sound occurs before the first silence, the second sound occurs after the first silence, and the third sound occurs after the second silence. Which sound has the longest duration? | [
"A. The first sound",
"B. The second sound",
"C. The third sound",
"D. All sounds are indistinguishable in duration"
] | B. The second sound | 6107200S_6700900Q_60026001 | ../../local_audio_path/6107200S_6700900Q_60026001.wav | apply_duration |
Which of the following is a known characteristic of the species that produced the sound in the given recording? | [
"A. It migrates seasonally between cool waters in the North Pacific and tropical waters near the equator.",
"B. It is morphologically similar to the dusky dolphin, a species found in the South Pacific.",
"C. It primarily inhabits shallow coastal waters and coral reef ecosystems year-round.",
"D. Its only know... | B. It is morphologically similar to the dusky dolphin, a species found in the South Pacific. | 6107200T | ../../local_audio_path/6107200T.wav | remember |
What type of vocalization can be identified from the audio recording? | [
"A. Whistles and distinct clicks",
"B. Continuous low-pitched hums",
"C. Rhythmic drumming sounds",
"D. High-pitched screeches"
] | A. Whistles and distinct clicks | 6107201N | ../../local_audio_path/6107201N.wav | vocalization |
Based on the sound recording, which of the following most accurately describes the acoustic characteristics of the signal? | [
"A. A high-frequency tone that sweeps downward from 25–15 kHz, accompanied by intermittent high-pitched burst-like sounds.",
"B. A low-frequency hum below 500 Hz with minimal variation over time.",
"C. A mid-frequency oscillating tone between 5–10 kHz, with no additional sound components.",
"D. A continuous h... | A. A high-frequency tone that sweeps downward from 25–15 kHz, accompanied by intermittent high-pitched burst-like sounds. | 6107201X | ../../local_audio_path/6107201X.wav | understand_acoustics |
Which species is identified from the sound recording? | [
"A. White-sided Dolphin (Lagenorhynchus acutus)",
"B. Common Dolphin (Delphinus delphis)",
"C. Spinner Dolphin (Stenella longirostris)",
"D. Risso's Dolphin (Grampus griseus)"
] | A. White-sided Dolphin (Lagenorhynchus acutus) | 6107202N | ../../local_audio_path/6107202N.wav | species |
What type of vocalization can be identified in the sound recording? | [
"A. Whistles and rhythmic clicks",
"B. Continuous buzzing sounds",
"C. Low-pitched hums",
"D. High-pitched trills"
] | A. Whistles and rhythmic clicks | 6107202O | ../../local_audio_path/6107202O.wav | vocalization |
What is a known migratory behavior of the species that produced the sound in the given recording? | [
"A. Migrating to the Arctic Ocean during winter months for breeding",
"B. Moving to the Southern California Bight in winter and further north in summer",
"C. Establishing permanent colonies in the Sea of Japan year-round",
"D. Following warm ocean currents such as the Gulf Stream"
] | B. Moving to the Southern California Bight in winter and further north in summer | 61072031 | ../../local_audio_path/61072031.wav | remember |
Based on the sound recording, which of the following best describes the primary acoustic pattern observed? | [
"A. A series of low-frequency tones around 20 Hz with periodic intensity peaks and faint harmonics.",
"B. A continuous high-frequency tone above 250 Hz with no noticeable amplitude variation.",
"C. A mid-frequency sound between 100–200 Hz with irregular amplitude modulation and no clear pattern.",
"D. A broad... | A. A series of low-frequency tones around 20 Hz with periodic intensity peaks and faint harmonics. | 61079005 | ../../local_audio_path/61079005.wav | understand_acoustics |
Which species is identified from the sound in the recording? | [
"A. Fin, Finback Whale (Balaenoptera physalus)",
"B. Humpback Whale (Megaptera novaeangliae)",
"C. Blue Whale (Balaenoptera musculus)",
"D. Sperm Whale (Physeter macrocephalus)"
] | A. Fin, Finback Whale (Balaenoptera physalus) | 6107900F | ../../local_audio_path/6107900F.wav | species |
Which species is identified from the sound recording? | [
"A. Blue Whale (Balaenoptera musculus)",
"B. Fin, Finback Whale (Balaenoptera physalus)",
"C. Humpback Whale (Megaptera novaeangliae)",
"D. Gray Whale (Eschrichtius robustus)"
] | B. Fin, Finback Whale (Balaenoptera physalus) | 6107900H | ../../local_audio_path/6107900H.wav | species |
Based on the sound recording, which of the following most accurately describes the acoustic characteristics of the signal? | [
"A. A low-frequency sound around 20 Hz with distinct harmonic overtones and periodic intensity modulation.",
"B. A high-pitched, continuous whistle above 10 kHz with no visible harmonics.",
"C. A mid-frequency tone ranging from 2–5 kHz with rapid amplitude fluctuations.",
"D. A broadband noise spread evenly a... | A. A low-frequency sound around 20 Hz with distinct harmonic overtones and periodic intensity modulation. | 6107900I | ../../local_audio_path/6107900I.wav | understand_acoustics |
Which species and vocalization type is most likely represented in the audio recording? | [
"A. Finback Whale (Balaenoptera physalus) - 21Hz moans from one close and one distant animal",
"B. Humpback Whale (Megaptera novaeangliae) - Long melodic moans",
"C. Sperm Whale (Physeter macrocephalus) - Rhythmic clicking sounds",
"D. Blue Whale (Balaenoptera musculus) - Low-frequency pulsating calls"
] | A. Finback Whale (Balaenoptera physalus) - 21Hz moans from one close and one distant animal | 6107900K | ../../local_audio_path/6107900K.wav | both |
What type of vocalization is most likely represented in the provided sound recording? | [
"A. Pulsed clicks",
"B. Continuous tonal humming",
"C. Long frequency-modulated whistles",
"D. Rhythmic knocking sounds"
] | A. Pulsed clicks | 62018001 | ../../local_audio_path/62018001.wav | vocalization |
Given the following sound sequence: Sound 1 occurs before the first silence, Sound 2 occurs after the first silence, and Sound 3 occurs after the second silence. Which sound has the longest duration? | [
"A. Sound 1",
"B. Sound 2",
"C. Sound 3",
"D. All sounds are indistinguishable in duration"
] | C. Sound 3 | 62018001_89514001_6608500L | ../../local_audio_path/62018001_89514001_6608500L.wav | apply_duration |
Given the following sound sequence: The first sound occurs before the first silence, the second sound occurs after the first silence, and the third sound occurs after the second silence. Which sound has the longest duration? | [
"A. The first sound",
"B. The second sound",
"C. The third sound",
"D. All sounds are indistinguishable in duration"
] | A. The first sound | 62019001_85009005_62022013 | ../../local_audio_path/62019001_85009005_62022013.wav | apply_duration |
Which species and vocalization type does the sound recording most likely represent? | [
"A. Beluga, White Whale (Delphinapterus leucas) - Pulsed clicks",
"B. Bottlenose Dolphin (Tursiops truncatus) - High-frequency whistles and echolocation clicks",
"C. Sperm Whale (Physeter macrocephalus) - Series of slow, rhythmic clicks",
"D. Humpback Whale (Megaptera novaeangliae) - Complex song with melodic... | A. Beluga, White Whale (Delphinapterus leucas) - Pulsed clicks | 6202200E | ../../local_audio_path/6202200E.wav | both |
Given the following sound sequence: Sound 1 occurs before the first silence, Sound 2 occurs after the first silence, and Sound 3 occurs after the second silence. Which sound has the longest duration? | [
"A. Sound 1",
"B. Sound 2",
"C. Sound 3",
"D. All sounds are indistinguishable in duration"
] | A. Sound 1 | 6202200E_9101201L_71004015 | ../../local_audio_path/6202200E_9101201L_71004015.wav | apply_duration |
What is a unique anatomical feature of the species that produced the sound in the given recording? | [
"A. A dorsal fin with serrated edges adapted for cutting through seaweed",
"B. A large, deformable organ in the head used for echolocation",
"C. A prehensile tail used for grasping and climbing sea ice",
"D. A bioluminescent stripe along its body for communication"
] | B. A large, deformable organ in the head used for echolocation | 62022014 | ../../local_audio_path/62022014.wav | remember |
Based on the sound recording, which of the following best describes the acoustic characteristics of the signal? | [
"A. A combination of high-frequency tones above 15 kHz and short bursts of mid-frequency modulations between 5–10 kHz.",
"B. Continuous low-frequency hums below 1 kHz with no distinct harmonic content.",
"C. A series of evenly spaced low-frequency pulses below 2 kHz with minimal variation.",
"D. A steady high... | A. A combination of high-frequency tones above 15 kHz and short bursts of mid-frequency modulations between 5–10 kHz. | 62022017 | ../../local_audio_path/62022017.wav | understand_acoustics |
Given the following sound sequence: The first sound occurs before the first silence, the second sound occurs after the first silence, and the third sound occurs after the second silence. Which sound has the shortest duration? | [
"A. The first sound",
"B. The second sound",
"C. The third sound",
"D. All sounds are indistinguishable in duration"
] | C. The third sound | 62026007_63019001_8103700U | ../../local_audio_path/62026007_63019001_8103700U.wav | apply_duration |
Given the following sound sequence: The first sound occurs before the first silence, the second sound occurs after the first silence, and the third sound occurs after the second silence. Which sound has the longest duration? | [
"A. The first sound",
"B. The second sound",
"C. The third sound",
"D. All sounds are indistinguishable in duration"
] | C. The third sound | 62026007_8300600A_81015005 | ../../local_audio_path/62026007_8300600A_81015005.wav | apply_duration |
Which species is identified from the sound recording? | [
"A. Beluga, White Whale (Delphinapterus leucas)",
"B. Sperm Whale (Physeter macrocephalus)",
"C. Narwhal (Monodon monoceros)",
"D. Common Dolphin (Delphinus delphis)"
] | A. Beluga, White Whale (Delphinapterus leucas) | 62026009 | ../../local_audio_path/62026009.wav | species |
What unique adaptation does the species that produced the sound in the given recording possess? | [
"A. A dorsal fin that aids in navigating warm, shallow waters",
"B. A large, deformable echolocation organ called the melon",
"C. Brightly colored skin that changes with water temperature",
"D. A specialized tail used for stunning prey"
] | B. A large, deformable echolocation organ called the melon | 6202600D | ../../local_audio_path/6202600D.wav | remember |
Given the following sound sequence: The first sound occurs before the first silence, the second sound occurs after the first silence, and the third sound occurs after the second silence. Which sound has the longest duration? | [
"A. The first sound",
"B. The second sound",
"C. The third sound",
"D. All sounds are indistinguishable in duration"
] | A. The first sound | 6202600D_6102603F_70025001 | ../../local_audio_path/6202600D_6102603F_70025001.wav | apply_duration |
Given the following sound sequence: Sound 1 occurs before the first silence, Sound 2 occurs after the first silence, and Sound 3 occurs after the second silence. Which sound has the shortest duration? | [
"A. Sound 1",
"B. Sound 2",
"C. Sound 3",
"D. All sounds are the same in duration"
] | C. Sound 3 | 6202600D_7200500C_6700900D | ../../local_audio_path/6202600D_7200500C_6700900D.wav | apply_duration |
Given the following sound sequence: Sound 1 occurs before the first silence, Sound 2 occurs after the first silence, and Sound 3 occurs after the second silence. Which sound has the highest dominant frequency range? | [
"A. Sound 1",
"B. Sound 2",
"C. Sound 3",
"D. All sounds are identical in frequency range"
] | B. Sound 2 | 6202600D_75003053_5801101L | ../../local_audio_path/6202600D_75003053_5801101L.wav | apply_frequency |
Based on the sound recording, which of the following most accurately describes the acoustic characteristics of the signal? | [
"A. A series of high-frequency harmonic tones above 10 kHz, with occasional frequency modulations.",
"B. A continuous low-frequency hum below 500 Hz, with no distinct harmonics.",
"C. Sporadic bursts of sound in the mid-frequency range of 2–5 kHz, with no tonal structure.",
"D. A steady tone across all freque... | A. A series of high-frequency harmonic tones above 10 kHz, with occasional frequency modulations. | 63015001 | ../../local_audio_path/63015001.wav | understand_acoustics |
Which species is identified from the sound recording? | [
"A. Beluga, White Whale (Delphinapterus leucas)",
"B. Bottlenose Dolphin (Tursiops truncatus)",
"C. Humpback Whale (Megaptera novaeangliae)",
"D. Narwhal (Monodon monoceros)"
] | A. Beluga, White Whale (Delphinapterus leucas) | 63015003 | ../../local_audio_path/63015003.wav | species |
Based on the sound recording, which of the following best describes the acoustic characteristics of the signal? | [
"A. A low-frequency sound below 500 Hz with clear harmonic patterns and echoes.",
"B. A high-pitched continuous tone above 10 kHz with no noticeable modulations.",
"C. A broad-band noise with frequencies evenly distributed across the spectrum.",
"D. A series of short, sharp bursts of sound in the mid-frequenc... | A. A low-frequency sound below 500 Hz with clear harmonic patterns and echoes. | 63019001 | ../../local_audio_path/63019001.wav | understand_acoustics |
What unique feeding behavior is exhibited by the species that produced the sound in the given recording? | [
"A. Using their tails to create splashes that stun their prey",
"B. Creating bubble nets to trap and capture prey",
"C. Utilizing echolocation to locate and stun their prey before swallowing",
"D. Cooperatively herding prey into shallow waters for easier capture"
] | B. Creating bubble nets to trap and capture prey | 6301900B | ../../local_audio_path/6301900B.wav | remember |
Which of the following is a unique physical characteristic of the species that produced the sound in the given recording? | [
"A. Tubercles on its head containing sensory hairs",
"B. A dorsal fin twice the size of its pectoral fins",
"C. A spiral-shaped tail used for steering underwater",
"D. Vibrant blue pigmentation over its entire body"
] | A. Tubercles on its head containing sensory hairs | 6301900D | ../../local_audio_path/6301900D.wav | remember |
What unique feeding technique is used by the species that produced the sound in the given recording? | [
"A. Creating bubble nets to trap prey",
"B. Using echolocation to immobilize prey",
"C. Stunning prey with powerful tail slaps",
"D. Digging into the seafloor to uncover buried prey"
] | A. Creating bubble nets to trap prey | 6301900Y | ../../local_audio_path/6301900Y.wav | remember |
Which of the following is a characteristic behavior of the species that produced the sound in the given recording? | [
"A. Using bubbles in a spiral formation to trap prey",
"B. Building underwater nests to protect their offspring",
"C. Storing food in underwater caches for later consumption",
"D. Forming permanent pods with structured hierarchies"
] | A. Using bubbles in a spiral formation to trap prey | 63019010 | ../../local_audio_path/63019010.wav | remember |
What unique feeding technique is used by the species that produced the sound in the given recording? | [
"A. Using their tail to stun prey in shallow waters",
"B. Herding prey using bubble nets created by swimming in circles",
"C. Chasing prey onto land during low tides",
"D. Cooperative hunting with other species to corral prey into dense groups"
] | B. Herding prey using bubble nets created by swimming in circles | 63019016 | ../../local_audio_path/63019016.wav | remember |
Which species and vocalization type are most likely represented in this sound recording? | [
"A. Humpback Whale (Megaptera novaeangliae) - Song calls",
"B. Bottlenose Dolphin (Tursiops truncatus) - High-frequency whistles and echolocation clicks",
"C. Blue Whale (Balaenoptera musculus) - Low-frequency moans",
"D. Sperm Whale (Physeter macrocephalus) - Rhythmic click sequences"
] | A. Humpback Whale (Megaptera novaeangliae) - Song calls | 6301901A | ../../local_audio_path/6301901A.wav | both |
What unique behavior distinguishes the species that produced the sound in the given recording? | [
"A. Using bubbles to trap prey during feeding",
"B. Engaging in cooperative hunting with orcas",
"C. Constructing nests to protect offspring in polar waters",
"D. Storing food reserves in underwater caves"
] | A. Using bubbles to trap prey during feeding | 6301901B | ../../local_audio_path/6301901B.wav | remember |
Given the following sound sequence: The first sound occurs before the first silence, the second sound occurs after the first silence, and the third sound occurs after the second silence. Which sound has the longest duration? | [
"A. The first sound",
"B. The second sound",
"C. The third sound",
"D. All sounds are indistinguishable in duration"
] | A. The first sound | 6301901B_6000900M_89514001 | ../../local_audio_path/6301901B_6000900M_89514001.wav | apply_duration |
Based on the sound recording, which of the following best describes the acoustic characteristics observed in the spectrogram? | [
"A. A steady low-frequency hum below 500 Hz with minimal harmonic structure.",
"B. A series of mid-frequency modulated tones between 300–3000 Hz, with distinct harmonic patterns and gradual amplitude changes over time.",
"C. High-pitched continuous tones above 6000 Hz, with a sharp increase in intensity and no ... | B. A series of mid-frequency modulated tones between 300–3000 Hz, with distinct harmonic patterns and gradual amplitude changes over time. | 6301901H | ../../local_audio_path/6301901H.wav | understand_acoustics |
Based on the acoustic characteristics of the sound, which of the following best describes the main feature of the recording? | [
"A. A continuous low-frequency hum below 500 Hz with subtle harmonic overtones.",
"B. A series of distinct modulated tones with harmonics in the 1–3 kHz range and higher frequencies around 6–7 kHz.",
"C. Sporadic high-pitched tones above 10 kHz with little modulation and minimal background noise.",
"D. A broa... | B. A series of distinct modulated tones with harmonics in the 1–3 kHz range and higher frequencies around 6–7 kHz. | 6304300K | ../../local_audio_path/6304300K.wav | understand_acoustics |
What type of vocalization is identified in the sound recording? | [
"A. Calls with reverberation present",
"B. Short, repetitive pulses without reverberation",
"C. High-pitched whistles in a steady sequence",
"D. Intermittent clicks with no discernible pattern"
] | A. Calls with reverberation present | 6304300M | ../../local_audio_path/6304300M.wav | vocalization |
Given the following sound sequence: Sound 1 occurs before the first silence, Sound 2 occurs after the first silence, and Sound 3 occurs after the second silence. Which sound has the longest duration? | [
"A. Sound 1",
"B. Sound 2",
"C. Sound 3",
"D. All sounds are indistinguishable in duration"
] | A. Sound 1 | 6304300M_89514001_81014029 | ../../local_audio_path/6304300M_89514001_81014029.wav | apply_duration |
Which species and vocalization type is most likely represented in the provided sound recording? | [
"A. Humpback Whale (Megaptera novaeangliae) - Pulsed calls with reverberation",
"B. Bottlenose Dolphin (Tursiops truncatus) - High-pitched tonal whistles",
"C. Sperm Whale (Physeter macrocephalus) - Series of slow clicks",
"D. Blue Whale (Balaenoptera musculus) - Low-frequency moans"
] | A. Humpback Whale (Megaptera novaeangliae) - Pulsed calls with reverberation | 6304300N | ../../local_audio_path/6304300N.wav | both |
Which of the following conservation measures has been particularly effective in reducing the threats faced by the species that produced the sound in the given recording? | [
"A. Establishing marine protected areas with artificial reefs for breeding.",
"B. Implementing dolphin-friendly tuna capture methods to reduce bycatch.",
"C. Creating feeding stations to supplement their diet during migration.",
"D. Introducing a global ban on all forms of fishing in tropical waters."
] | B. Implementing dolphin-friendly tuna capture methods to reduce bycatch. | 64005009 | ../../local_audio_path/64005009.wav | remember |
Based on the acoustic characteristics of the sound recording, which of the following best describes the main features of the signal? | [
"A. High-frequency tones above 20 kHz, combined with rapid, intermittent bursts of sound.",
"B. A steady low-frequency hum below 1 kHz with minimal variation.",
"C. A continuous mid-frequency sound in the range of 2–5 kHz with no modulation.",
"D. A uniform noise pattern spread evenly across all frequencies."... | A. High-frequency tones above 20 kHz, combined with rapid, intermittent bursts of sound. | 6400500D | ../../local_audio_path/6400500D.wav | understand_acoustics |
Based on the acoustic characteristics of the sound recording, which of the following best describes the main features of the signal? | [
"A. A series of high-frequency components above 20 kHz, with recurring vertical patterns indicating rapid bursts of sound.",
"B. A continuous low-frequency tone below 1 kHz, with steady amplitude and no apparent modulation.",
"C. A mid-frequency tone between 5–10 kHz, with evenly spaced harmonic lines and minim... | A. A series of high-frequency components above 20 kHz, with recurring vertical patterns indicating rapid bursts of sound. | 64005016 | ../../local_audio_path/64005016.wav | understand_acoustics |
Given the following sound sequence: The first sound occurs before the first silence, the second sound occurs after the first silence, and the third sound occurs after the second silence. Which sound has the longest duration? | [
"A. The first sound",
"B. The second sound",
"C. The third sound",
"D. All sounds are indistinguishable in duration"
] | C. The third sound | 64005016_6608400C_67009003 | ../../local_audio_path/64005016_6608400C_67009003.wav | apply_duration |
Given the following sound sequence: Sound 1 occurs before the first silence, Sound 2 occurs after the first silence, and Sound 3 occurs after the second silence. Which sound is most dominant in higher frequencies? | [
"A. Sound 1",
"B. Sound 2",
"C. Sound 3",
"D. All the same"
] | B. Sound 2 | 64005016_89514011_63015001 | ../../local_audio_path/64005016_89514011_63015001.wav | apply_frequency |
Given the following sound sequence: The first sound occurs before the first silence, the second sound occurs after the first silence, and the third sound occurs after the second silence. Which sound has the highest pitch? | [
"A. The first sound",
"B. The second sound",
"C. The third sound",
"D. All the same"
] | B. The second sound | 64005017_6102500H_59030024 | ../../local_audio_path/64005017_6102500H_59030024.wav | apply_frequency |
Given the following sound sequence: Sound 1 occurs before the first silence, Sound 2 occurs after the first silence, and Sound 3 occurs after the second silence. Which sound has the longest duration? | [
"A. Sound 1",
"B. Sound 2",
"C. Sound 3",
"D. All sounds are indistinguishable in duration"
] | B. Sound 2 | 64005017_8800600F_7100401H | ../../local_audio_path/64005017_8800600F_7100401H.wav | apply_duration |
Which species and vocalization type does the sound recording most likely represent? | [
"A. Pantropical Spotted Dolphin (Stenella attenuata) - Whistle and clicks",
"B. Bottlenose Dolphin (Tursiops truncatus) - Tonal whistles only",
"C. Humpback Whale (Megaptera novaeangliae) - Repetitive moaning sounds",
"D. Killer Whale (Orcinus orca) - Pulsed calls and echolocation clicks"
] | A. Pantropical Spotted Dolphin (Stenella attenuata) - Whistle and clicks | 64005019 | ../../local_audio_path/64005019.wav | both |
What was a significant conservation measure that helped protect the species that produced the sound in the given recording? | [
"A. The establishment of marine reserves in temperate oceans worldwide",
"B. The introduction of 'dolphin-friendly' tuna capture methods in the 1980s",
"C. The prohibition of all fishing activities in tropical waters",
"D. The enforcement of international whaling bans by the United Nations"
] | B. The introduction of 'dolphin-friendly' tuna capture methods in the 1980s | 6400501A | ../../local_audio_path/6400501A.wav | remember |
Given the following sound sequence: The first sound occurs before the first silence, the second sound occurs after the first silence, and the third sound occurs after the second silence. Which sound is most dominant in lower frequencies? | [
"A. The first sound",
"B. The second sound",
"C. The third sound",
"D. All the same"
] | C. The third sound | 6400501B_9101204L_7001800U | ../../local_audio_path/6400501B_9101204L_7001800U.wav | apply_frequency |
What species and vocalization type are most likely represented in the provided audio recording? | [
"A. Pantropical Spotted Dolphin (Stenella attenuata) - Whistle and clicks",
"B. Bottlenose Dolphin (Tursiops truncatus) - Pure tonal whistles",
"C. Sperm Whale (Physeter macrocephalus) - Regular clicking patterns",
"D. Humpback Whale (Megaptera novaeangliae) - Long melodic moans"
] | A. Pantropical Spotted Dolphin (Stenella attenuata) - Whistle and clicks | 6400501C | ../../local_audio_path/6400501C.wav | both |
Given the following sound sequence: The first sound occurs before the first silence, the second sound occurs after the first silence, and the third sound occurs after the second silence. Which sound has the longest duration? | [
"A. The first sound",
"B. The second sound",
"C. The third sound",
"D. All sounds are indistinguishable in duration"
] | A. The first sound | 6400501C_60026005_59029002 | ../../local_audio_path/6400501C_60026005_59029002.wav | apply_duration |
What type of vocalization can be identified from the sound recording? | [
"A. Whistles with accompanying clicks",
"B. Continuous low-frequency hums",
"C. Sharp, isolated chirps",
"D. Long tonal moans"
] | A. Whistles with accompanying clicks | 6400501D | ../../local_audio_path/6400501D.wav | vocalization |
Given the following sound sequence: Sound 1 occurs before the first silence, Sound 2 occurs after the first silence, and Sound 3 occurs after the second silence. Which sound has the longest duration? | [
"A. Sound 1",
"B. Sound 2",
"C. Sound 3",
"D. All sounds are indistinguishable in duration"
] | A. Sound 1 | 6400501D_8800602Q_8500701C | ../../local_audio_path/6400501D_8800602Q_8500701C.wav | apply_duration |
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