qaac的 -r, --rate <keep|auto|n> keep: output sampling rate will be same as input if possible. auto: output sampling rate will be automatically chosen by encoder. n: desired output sampling rate in Hz qtaacenc的 --samplerate <auto|keep|value> : control the output samplerate auto : automatically choose the optimum samplerate according to the bitrate and quality [default] keep : keep the original samplerate (if possible) value : specify samplerate in Hz; allowed values are 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000 请学会自行查看help 当然更多情况恐怕是用其他方式转,比如ffmpeg之类的,大概是因为比较通用