On Thu, Sep 25, 2014 at 17:42:46 +0800, linxs wrote: > How can I use mp2 to encode high pitch audio?
Whether a 19 kHz tone is properly encoded or not certainly depends on the implementation of the psychoacoutic model. The library twolame (which is not the ffmpeg native implementation you're using!) seems to have its lowpass somewhat below 19 kHz in some models: http://www.hydrogenaud.io/forums/index.php?s=&showtopic=52056&view=findpost&p=467160 I couldn't find any proper documentation on that and don't care to read the sources. Something similar is likely valid for ffmpeg's native mp2 encoder, even though it doesn't seem to support more than one model. (The source says it doesn't even have one. ;-)) How and whether the band around 19kHz is encoded I do not know. Perhaps not at all. Moritz P.S.: I don't have a dog for testing the resulting file. ;-) Audacity is nice though... _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
