Help with Bash Script for Downsampling .FLAC Files Using FFmpeg

[Rnt_braga81]

Olá, comunidade!

Estou trabalhando em um script bash que usa FFmpeg para executar downsampling de arquivos de áudio no formato .FLAC. O objetivo é converter esses arquivos para uma taxa de amostragem de 44,1 kHz e garantir que os metadados sejam preservados.

Aqui está o script que estou usando:

#!/bin/bash
para arquivo em /storage/emulated/0/Music/*.flac; faça
nome do arquivo=$(nome base "$arquivo")
ffmpeg -i "$file" -vn -map_metadata 0 -sample_fmt s16 -ar 44100 -af aresample=resampler=soxr: precision=28:cheby=1:cutoff=0.975:dither_method=shaped "/storage/emulated/0/Music/Downsampling/$filename"
feito

My questions are:

1. Eficiência do script: O script está otimizado para a tarefa que pretendo realizar? Existe alguma maneira de melhorá-lo?


2. Parâmetros FFmpeg: Alguém pode explicar o impacto de cada parâmetro que estou usando, especialmente o aresample? Estou focando em manter a qualidade do áudio.


3. Alternativas: Existem alternativas ao FFmpeg que poderiam executar essa tarefa de forma mais eficaz?



Agradeço qualquer ajuda ou feedback que você possa oferecer com antecedência!

 

[rob aylestone]

To save some time, apple translated that as:

There, community!

I'm working on a bash script that uses FFmpeg to downsamp audio files in the format. FLAC. The goal is to convert these files to a sampling rate of 44.1 kHz and ensure that metadata is preserved.

Here is the script I'm using:

#! /Bin/bash

For file in /storage/emulated/0/Music/*.flac; do

File name=$(base name "$file")

Ffmpeg -i "$file" -vn -map_metadata 0 -sample_fmt s16 -ar 44100 -af aresample=resampler=soxr: precision=28:cheby=1:cutoff=0.975:dither_method= shaped "/storage/emulated/0/Music/Downsampling/$filename"

Made

My questions are:

1. Script efficiency: Is the script optimised for the task I intend to perform? Is there any way to improve it?

2. FFmpeg parameters: Can someone explain the impact of each parameter I'm using, especially aresample? I'm focussing on maintaining the audio quality.

3. Alternatives: Are there alternatives to FFmpeg that could perform this task more effectively?

 

[Rnt_braga81]

Thank you for reviewing and translating my post! I appreciate the help in making sure it’s clear and accessible.

To save some time, apple translated that as:

There, community!

I'm working on a bash script that uses FFmpeg to downsamp audio files in the format. FLAC. The goal is to convert these files to a sampling rate of 44.1 kHz and ensure that metadata is preserved.

Here is the script I'm using:

#! /Bin/bash

For file in /storage/emulated/0/Music/*.flac; do

File name=$(base name "$file")

Ffmpeg -i "$file" -vn -map_metadata 0 -sample_fmt s16 -ar 44100 -af aresample=resampler=soxr: precision=28:cheby=1:cutoff=0.975:dither_method= shaped "/storage/emulated/0/Music/Downsampling/$filename"

Made

My questions are:

1. Script efficiency: Is the script optimised for the task I intend to perform? Is there any way to improve it?

2. FFmpeg parameters: Can someone explain the impact of each parameter I'm using, especially aresample? I'm focussing on maintaining the audio quality.

3. Alternatives: Are there alternatives to FFmpeg that could perform this task more effectively?