audio-mastering-cli

CLI audio mastering without a reference track using ffmpeg; accepts audio or video inputs and outputs mastered WAV/MP3 or remuxed MP4.

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Install skill "audio-mastering-cli" with this command: npx skills add alesys/audio-mastering-cli

Audio Mastering CLI

Usa este skill cuando el usuario quiera masterizar audio sin referencia, por CLI, sobre archivo de audio o video.

Entradas soportadas

  • Audio: wav, aiff, flac, mp3, m4a
  • Video: mp4, mov, m4v, mkv, webm

Flujo

  1. Verifica que existe el archivo de entrada.
  2. Ejecuta: powershell -ExecutionPolicy Bypass -File "{baseDir}/scripts/master_media.ps1" -InputFile "<ruta-archivo>" -MakeMp3
  3. Entrega salidas:
    • WAV master: <base>_master.wav
    • MP3 master: <base>_master.mp3 (si -MakeMp3)
    • Si la entrada es video: <base>_master.mp4 con video original + audio masterizado AAC 320k
  4. Reporta loudness/true peak del log.

Cadena aplicada

  • highpass + lowpass
  • EQ suave de correccion/mejora
  • acompressor
  • alimiter
  • loudnorm dos pasadas (objetivo conservador multiplaforma)

Verificacion opcional

ffmpeg -hide_banner -i "<archivo_master.wav>" -af "loudnorm=I=-14:TP=-1:LRA=7:print_format=summary" -f null NUL

Notas

  • Para video: se conserva el stream de video (-c:v copy) y solo se reemplaza audio.
  • Si hay avisos de clipping interno en EQ, bajar input o ganancias de EQ y reexportar.

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