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fix/v0.2.5-ambience-loudness
Find-Word/.agent/evidence-v0.2.5/review-fixes/rejected-loudnorm-bundle/manifest.json
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fix: normalize ambience loudness for v0.2.5
2026-10-14 12:12:13 +00:00
{
"version": "0.2.5",
"normalization": {
"algorithm": "FFmpeg loudnorm EBU R128 two-pass linear; independent final PCM input measurement",
"targetIntegratedLUFS": -32.0,
"truePeakCeilingDBTP": -6.0,
"filterTruePeakDBTP": -6.1,
"targetLRA": 50,
"dualMono": false,
"toleranceLU": 0.2,
"maximumSpreadLU": 0.4,
"measurementFilter": "loudnorm=I=-32:TP=-6.1:LRA=50:dual_mono=false:print_format=json"
},
"generatedAtUtc": "2026-10-14T10:23:04.620836+00:00",
"toolVersions": {
"ffmpeg": "ffmpeg version 6.1.1-3ubuntu5 Copyright (c) 2000-2023 the FFmpeg developers"
},
"sampleRate": 24000,
"channels": 1,
"encoding": "PCM16",
"files": [
{
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"displayName": "길거리",
"pageUrl": "https://commons.wikimedia.org/wiki/File:Sunday_in_the_city_street_noise2.ogg",
"directUrl": "https://upload.wikimedia.org/wikipedia/commons/2/24/Sunday_in_the_city_street_noise2.ogg",
"creator": "cori (Cori Samuel)",
"license": "Public domain (PD-author)",
"licenseUrl": "https://commons.wikimedia.org/wiki/Template:PD-author",
"attribution": "Suggested: Sunday, 4th May 2008 5.05pm - sounds outside my window, by cori (Cori Samuel), via Wikimedia Commons; public domain.",
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"method": "SHA-256, byte count, ffprobe format.duration, full FFmpeg decode",
"evidence": ".agent/evidence-v0.2.3/source-integrity.json"
},
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"outputLicense": "Public domain (PD-author)",
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"sha256": "1e12ed82c07550e22905b912a8f862ce10dfe884b5d36a928f7a04628665529d",
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"seekMethod": "input seek",
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"loudness": {
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"normalization_type": "linear",
"target_offset": "-0.20"
},
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"target_offset": "1.21"
}
},
"operations": "excerpt, downmix, resample, linear end fades, FFmpeg EBU R128 two-pass linear loudnorm, PCM16 WAV encoding, final loudness/true-peak measurement"
}
},
{
"environmentId": "mall",
"displayName": "쇼핑몰",
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"directUrl": "https://upload.wikimedia.org/wikipedia/commons/f/fd/1_minute_at_the_alexa_mall_in_berlin.ogg",
"creator": "thore (Thore)",
"license": "Public domain (PD-author)",
"licenseUrl": "https://commons.wikimedia.org/wiki/Template:PD-author",
"attribution": "Suggested: 1 minute at the Alexa mall in Berlin, by thore, via Wikimedia Commons; public domain.",
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"method": "SHA-256, byte count, ffprobe format.duration, full FFmpeg decode",
"evidence": ".agent/evidence-v0.2.3/source-integrity.json"
},
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"encoding": "PCM16 little-endian",
"loudness": {
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},
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"target_offset": "-0.27"
}
},
"operations": "excerpt, downmix, resample, linear end fades, FFmpeg EBU R128 two-pass linear loudnorm, PCM16 WAV encoding, final loudness/true-peak measurement"
}
},
{
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"displayName": "극장",
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"directUrl": "https://cdn.freesound.org/previews/853/853576_14269391-lq.mp3",
"creator": "ElevatorFan2020",
"license": "CC0 1.0 Universal",
"licenseUrl": "https://creativecommons.org/publicdomain/zero/1.0/",
"attribution": "Suggested: Crowd Ambience - Theater, by ElevatorFan2020, from Freesound, CC0 1.0.",
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"evidence": ".agent/evidence-v0.2.3/source-integrity.json"
},
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"sha256": "1fa8c57ce39013ff6bc4c0c4e8aff42f295781d27ba763b2990efe4727b4bd27",
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"channels": 1,
"encoding": "PCM16 little-endian",
"loudness": {
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"pass2Filter": "loudnorm=I=-32:TP=-6.1:LRA=50:dual_mono=false:print_format=json:measured_I=-25.82:measured_TP=-9.26:measured_LRA=0.9:measured_thresh=-35.82:offset=0:linear=true",
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"input_lra": "0.90",
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"target_offset": "-0.15"
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"output_lra": "1.10",
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"normalization_type": "linear",
"target_offset": "-0.11"
},
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}
},
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}
},
{
"environmentId": "department",
"displayName": "백화점",
"pageUrl": "https://freesound.org/people/icmusic/sounds/268941/",
"directUrl": "https://cdn.freesound.org/previews/268/268941_40107-lq.mp3",
"creator": "icmusic",
"license": "CC0 1.0 Universal",
"licenseUrl": "https://creativecommons.org/publicdomain/zero/1.0/",
"attribution": "Suggested: US Department store - checkouts, by icmusic, from Freesound, CC0 1.0.",
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"method": "SHA-256, byte count, ffprobe format.duration, full FFmpeg decode",
"evidence": ".agent/evidence-v0.2.3/source-integrity.json"
},
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},
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}
},
{
"environmentId": "market",
"displayName": "시장",
"pageUrl": "https://commons.wikimedia.org/wiki/File:Italia_Palermo_mercato-Ballaro_20161225_122421.ogg",
"directUrl": "https://upload.wikimedia.org/wikipedia/commons/e/e8/Italia_Palermo_mercato-Ballaro_20161225_122421.ogg",
"creator": "Marie Flutre (Wikimedia user Timflutre)",
"license": "CC BY-SA 4.0",
"licenseUrl": "https://creativecommons.org/licenses/by-sa/4.0/",
"attribution": "Italia Palermo mercato-Ballaro 20161225 122421, by Marie Flutre, CC BY-SA 4.0, via Wikimedia Commons. Modified by excerpting, trimming, fades, normalization, downmixing, resampling and PCM WAV conversion. The derivative audio remains CC BY-SA 4.0.",
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}
},
{
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"directUrl": "https://upload.wikimedia.org/wikipedia/commons/d/d3/TTC_Subway_Line_1_Ambience_-_Museum_to_Union_%28Freesound%29.ogg",
"creator": "PascalHD",
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"licenseUrl": "https://creativecommons.org/licenses/by/4.0/",
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}
},
{
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"directUrl": "https://upload.wikimedia.org/wikipedia/commons/5/54/Cafe_ambiance.ogg",
"creator": "Marble Toast",
"license": "CC0 1.0 Universal",
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Reference in New Issue Copy Permalink