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

对于目标为190 VBR且文件扩展名为.mp3而不是.ac3.mp3的文件夹中的文件进行批处理，您可以使用以下代码

将.ac3更改为源音频格式。

Ffmpeg mp3设置

for f in *.ac3 ; do ffmpeg -i "$f" -acodec libmp3lame -q:a 2 "${f%.*}.mp3"; done

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"

1) wav转mp3

ffmpeg -i audio.wav -acodec libmp3lame audio.mp3

2) ogg到mp3

ffmpeg -i audio.ogg -acodec libmp3lame audio.mp3

3） AC3 到 MP3

ffmpeg -i audio.ac3 -acodec libmp3lame audio.mp3

4) aac转mp3

ffmpeg -i audio.aac -acodec libmp3lame audio.mp3

尝试FFmpeg静态构建链接

文档:https://www.johnvansickle.com/ffmpeg/

将静态构建驻留在服务器上的同一目录中

$ffmpeg = dirname(__FILE__).'/ffmpeg';

$command = $ffmpeg.'ffmpeg -i audio.ogg -acodec libmp3lame audio.mp3';

shell_exec($command);

高质量的Mac OS工作完美!

Ffmpeg -i input.wma -q: 0输出。mp3