cineaudiosynth / data /scene_0004 /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": "balanced",
"scene_type_config": {
"speech_prob": 1.0,
"music_prob": 1.0,
"ambience_prob": 1.0,
"sfx_range": [
2,
6
],
"duck_music": true,
"duck_sfx": true,
"gain_offsets": {
"speech": 0.0,
"music": 0.0,
"ambience": 0.0,
"sfx": 0.0
}
},
"scene_plan": {
"events": [
{
"timestamp": 4.5,
"description": "lighter flick"
},
{
"timestamp": 18.2,
"description": "distant wedding applause"
},
{
"timestamp": 32.0,
"description": "crickets chirping softly"
},
{
"timestamp": 48.5,
"description": "distant glass clinking"
},
{
"timestamp": 62.1,
"description": "heavy suit fabric rustle"
}
],
"gemini_context": {
"music_tag": "comedy",
"ambience_cue": "distant wedding reception with muffled chatter and music",
"events": [
{
"sound": "lighter flick",
"timestamp": 4.5
},
{
"sound": "distant wedding applause",
"timestamp": 18.2
},
{
"sound": "crickets chirping softly",
"timestamp": 32.0
},
{
"sound": "distant glass clinking",
"timestamp": 48.5
},
{
"sound": "heavy suit fabric rustle",
"timestamp": 62.1
}
]
},
"dialogue_duration_sec": 69.66933333333333,
"token_usage": {
"usage_metadata": {
"prompt_token_count": 2281,
"candidates_token_count": 173,
"total_token_count": 2982,
"cached_content_token_count": 1633
},
"model": "gemini-3-flash-preview"
},
"scene_type": "balanced",
"scene_type_config": {
"speech_prob": 1.0,
"music_prob": 1.0,
"ambience_prob": 1.0,
"sfx_range": [
2,
6
],
"duck_music": true,
"duck_sfx": true,
"gain_offsets": {
"speech": 0.0,
"music": 0.0,
"ambience": 0.0,
"sfx": 0.0
}
},
"has_music": true,
"has_ambience": true
},
"critic_adjustments": {
"speech": {
"compressor": {
"threshold": -22,
"ratio": 3.5
},
"reverb": {
"type": "open_field",
"wet_amount": 0.1
},
"gain_db": 6.0
},
"music": {
"gain_db": -13.5,
"low_cut_hz": 160
},
"ambience": {
"gain_db": -6.0
},
"sfx": {
"gain_db": -6.0,
"reverb": {
"type": "room",
"wet_amount": 0.016
}
}
},
"sfx_event_settings": {
"sfx_0": {
"gain_db": 1.0,
"reverb": {
"type": "dry",
"wet_amount": 0.05
}
},
"sfx_1": {
"gain_db": -2.5,
"reverb": {
"type": "large_room",
"wet_amount": 0.35
}
},
"sfx_2": {
"gain_db": 0.0,
"reverb": {
"type": "open_field",
"wet_amount": 0.2
}
},
"sfx_3": {
"gain_db": -5.0,
"reverb": {
"type": "large_room",
"wet_amount": 0.4
}
},
"sfx_4": {
"gain_db": -1.5,
"reverb": {
"type": "dry",
"wet_amount": 0.1
}
}
},
"token_usage": {
"director": {
"usage_metadata": {
"prompt_token_count": 2281,
"candidates_token_count": 173,
"total_token_count": 2982,
"cached_content_token_count": 1633
},
"model": "gemini-3-flash-preview"
},
"critic": {
"usage_metadata": {
"prompt_token_count": 3390,
"candidates_token_count": 561,
"total_token_count": 5009
},
"model": "gemini-3-flash-preview"
},
"total_token_count": 7991
},
"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": -26.766317653737268,
"true_peak_dbtp": -8.97922257251942
}
},
"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": -19.819898730924645,
"true_peak_dbtp": -0.999854487670355
},
"additivity_error_pcm16": 0.0,
"peak_normalization": {
"applied": true,
"gain_db": -1.3974,
"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": -26.928386922216678,
"true_peak_dbtp": -8.250292973447351
}
}
},
"linear_additivity_verified": true
}