没关系,

我正在使用命令将我的音频文件转换为mp2:

ffmpeg -i input.wav -f mp2 output.mp3

这个命令非常有效。

我知道这实际上将文件转换为mp2格式，但结果文件大小是相同的..

正如这里所描述的，输入和输出扩展将由ffmpeg检测，所以不需要担心格式，只需运行这个命令:

ffmpeg -i inputFile。ogg outputFile.mp3

https://trac.ffmpeg.org/wiki/Encode/MP3

的VBR编码:

ffmpeg -vn -ar 44100 -ac 2 -q:a 1 -codec:a libmp3lame output.mp3

似乎没有人使用find，它让您在一行上完成所有操作。基于这个答案和这篇文章

find . -type f -iname "*.webm" -exec bash -c 'FILE="$1"; ffmpeg -i "${FILE}" -vn -ab 128k "${FILE%.webm}.mp3";' _ '{}' \;

对于播客来说，128k对我来说已经足够了。你可以把这个参数调整到其他参数旁边:

-i - input file -vn - Disable video, to make sure no video (including album cover image) is included if the source would be a video file -ar - Set the audio sampling frequency. For output streams it is set by default to the frequency of the corresponding input stream. For input streams this option only makes sense for audio grabbing devices and raw demuxers and is mapped to the corresponding demuxer options. -ac - Set the number of audio channels. For output streams it is set by default to the number of input audio channels. For input streams this option only makes sense for audio grabbing devices and raw demuxers and is mapped to the corresponding demuxer options. So used here to make sure it is stereo (2 channels) -b:a - Converts the audio bitrate to be exact 192kbit per second

此外，这还说明了ffmpeg比特率参数的区别

你可以使用这个命令:

ffmpeg -i input.wav -vn -ar 44100 -ac 2 -b:a 192k output.mp3

本例中使用的参数说明:

-i - input file -vn - Disable video, to make sure no video (including album cover image) is included if the source would be a video file -ar - Set the audio sampling frequency. For output streams it is set by default to the frequency of the corresponding input stream. For input streams this option only makes sense for audio grabbing devices and raw demuxers and is mapped to the corresponding demuxer options. -ac - Set the number of audio channels. For output streams it is set by default to the number of input audio channels. For input streams this option only makes sense for audio grabbing devices and raw demuxers and is mapped to the corresponding demuxer options. So used here to make sure it is stereo (2 channels) -b:a - Converts the audio bitrate to be exact 192kbit per second

如果你有一个文件夹和子文件夹里都是你想转换的wav，把下面的命令放在一个文件中，保存在你想转换的文件夹根目录下的。bat文件中，然后运行bat文件

for /R %%g in (*.wav) do start /b /wait "" "C:\ffmpeg-4.0.1-win64-static\bin\ffmpeg" -threads 16 -i "%%g" -acodec libmp3lame "%%~dpng.mp3" && del "%%g"