NotePublic/Software/Applications/Lame/Lame_MP3_与_Wav_互转.md

# Lame MP3 与 Wav 互转

## 安装

    sudo apt install lame

## 使用

Fixed bit rate 128kbps encoding:

    lame sample.wav sample.mp3

Decode:

    lame sample.mp3 sample.wav --decode

Fixed bit rate jstereo 128kbps encoding, high quality (recommended):

    lame -h sample.wav sample.mp3

Average bit rate 112kbps encoding:

    lame --abr 112 sample.wav sample.mp3

Fast encode, low quality (no psycho-acoustics):

    lame -f sample.wav sample.mp3

Variable bitrate (use -V n to adjust quality/filesize):

    lame -h -V 6 sample.wav sample.mp3

Streaming mono 22.05 kHz raw pcm, 24 kbps output:

    cat inputfile | lame -r -m m -b 24 -s 22.05 -- > output

Streaming mono 44.1 kHz raw pcm, with downsampling to 22.05 kHz:

    cat inputfile | lame -r -m m -b 24 --resample 22.05 -- > output