cineaudiosynth / data /scene_0046 /metadata.json
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CineAudioSynth: 453 synthetic cinematic scenes, 48kHz/16-bit stereo WAV stems (speech/music/ambience/sfx) with linear & release mixes
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{
"scene_type": "ambient",
"scene_type_config": {
"speech_prob": 0.3,
"music_prob": 0.5,
"ambience_prob": 1.0,
"sfx_range": [
2,
8
],
"duck_music": true,
"duck_sfx": false,
"gain_offsets": {
"speech": -3.0,
"music": -3.0,
"ambience": 6.0,
"sfx": 3.0
}
},
"scene_plan": {
"events": [
{
"timestamp": 8.5,
"description": "Distant car horn"
},
{
"timestamp": 45.2,
"description": "Heavy vehicle passing"
},
{
"timestamp": 92.0,
"description": "Car door thud"
},
{
"timestamp": 135.4,
"description": "Keys jingling"
},
{
"timestamp": 173.1,
"description": "Footsteps on asphalt"
}
],
"gemini_context": {
"music_tag": null,
"ambience_cue": "Busy suburban road with steady traffic hum and distant city noise.",
"events": [
{
"sound": "Distant car horn",
"timestamp": 8.5
},
{
"sound": "Heavy vehicle passing",
"timestamp": 45.2
},
{
"sound": "Car door thud",
"timestamp": 92.0
},
{
"sound": "Keys jingling",
"timestamp": 135.4
},
{
"sound": "Footsteps on asphalt",
"timestamp": 173.1
}
]
},
"dialogue_duration_sec": 176.38804166666668,
"token_usage": {
"usage_metadata": {
"prompt_token_count": 4964,
"candidates_token_count": 176,
"total_token_count": 6009
},
"model": "gemini-3-flash-preview"
},
"scene_type": "ambient",
"scene_type_config": {
"speech_prob": 0.3,
"music_prob": 0.5,
"ambience_prob": 1.0,
"sfx_range": [
2,
8
],
"duck_music": true,
"duck_sfx": false,
"gain_offsets": {
"speech": -3.0,
"music": -3.0,
"ambience": 6.0,
"sfx": 3.0
}
},
"has_music": false,
"has_ambience": true
},
"critic_adjustments": {
"speech": {
"compressor": {
"threshold": -22,
"ratio": 3.5
},
"reverb": {
"type": "open_field",
"wet_amount": 0.05
},
"gain_db": 6.0,
"low_cut_hz": 100
},
"music": {
"gain_db": -11.0,
"low_cut_hz": 150
},
"ambience": {
"gain_db": -6.0
},
"sfx": {
"gain_db": -14.0,
"reverb": null,
"low_cut_hz": 80
}
},
"sfx_event_settings": {
"sfx_0": {
"gain_db": -4.0,
"reverb": {
"type": "open_field",
"wet_amount": 0.3
}
},
"sfx_1": {
"gain_db": -1.0,
"reverb": {
"type": "open_field",
"wet_amount": 0.1
}
},
"sfx_2": {
"gain_db": -2.0,
"reverb": {
"type": "open_field",
"wet_amount": 0.2
}
},
"sfx_3": {
"gain_db": -8.0,
"reverb": {
"type": "dry",
"wet_amount": 0.0
}
},
"sfx_4": {
"gain_db": -5.0,
"reverb": {
"type": "open_field",
"wet_amount": 0.15
}
}
},
"token_usage": {
"director": {
"usage_metadata": {
"prompt_token_count": 4964,
"candidates_token_count": 176,
"total_token_count": 6009
},
"model": "gemini-3-flash-preview"
},
"critic": {
"usage_metadata": {
"prompt_token_count": 6013,
"candidates_token_count": 554,
"total_token_count": 7749
},
"model": "gemini-3-flash-preview"
},
"total_token_count": 13758
},
"outputs": {
"raw": null,
"rough": {
"stem_paths": {
"speech": "rough/speech.wav",
"music": "rough/music.wav",
"ambience": "rough/ambience.wav",
"sfx": "rough/sfx.wav"
},
"mix_path": "rough/mix.wav",
"loudness": {
"integrated_lufs": -27.56752410489796,
"true_peak_dbtp": -11.884218318733806
}
},
"linear": {
"stem_paths": {
"speech": "linear/speech.wav",
"music": "linear/music.wav",
"ambience": "linear/ambience.wav",
"sfx": "linear/sfx.wav"
},
"mix_path": "linear/mix.wav",
"envelope_path": "linear/gain_envelope.json",
"additivity_error": 0.0,
"loudness": {
"loudness_lufs": -17.770265632420184,
"true_peak_dbtp": -1.000151903809611
},
"additivity_error_pcm16": 0.0,
"peak_normalization": {
"applied": true,
"gain_db": -0.5051,
"target_peak_dbfs": -1.0,
"note": "shared gain on mix and all stems; preserves mix == sum(stems)"
}
},
"release": {
"stem_paths": {
"speech": "release/speech.wav",
"music": "release/music.wav",
"ambience": "release/ambience.wav",
"sfx": "release/sfx.wav"
},
"mix_path": "release/mix.wav",
"loudness": {
"integrated_lufs": -26.503727779842638,
"true_peak_dbtp": -11.77591689628204
}
}
},
"linear_additivity_verified": true
}