Hi, MP2 is a lossy compression format. Meaning that the data is compressed through losing and filtering some less valuable data.
BR, Maziar -- Hälsningar, Maziar Mehrabi, On Thu, Sep 25, 2014 at 12:42 PM, linxs <[email protected]> wrote: > An audio file, whoes param is: 48k, 2 channel, 16bit. > The audio is sine wave and only has one frequecy: 19500Hz. > I use the this command: > ffmpeg -i 195khz.wav -b:a 384k -c:a mp2 195.mp2 > then, > ffmpeg -i 195.mp2 195-re.wav > The problem is: the high-pitch sine wave from original audio is eliminated > completely > and all data in 195-re.wav is 0 ! > How can I use mp2 to encode high pitch audio? > > Thank you! > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
