Log in

View Full Version : Something to play m4v files at diff playrate


eli2k
27th January 2009, 10:46
Hi - I have these files encoded in m4v (I think they use h264 with AAC audio) and I want to be able to control the playback rate. If I have files that play in windows media player, I can change the playback rate on that, and it works pretty well. I use media player classic for everything else, but changing the playrate on this just doubles it to 2x, but I still need to be able to hear the audio, so in wmp I usually have it on somewhere between 1.2-1.3x. I can use quicktime to adjust the playback rate for the m4v files, but there seems to be an echo to the audio, and it's a bit clunky. I was wondering if anyone here can suggest something else I can try. I did try VLC before, but I don't think it had audio when it sped up.

Thanks,
- Eli

Reimar
27th January 2009, 14:19
changing the playrate on this just doubles it to 2x, but I still need to be able to hear the audio, so in wmp I usually have it on somewhere between 1.2-1.3x.

Use MPlayer or SMPlayer, the ']'-key increases playback speed by 10% for each press.
If you add the scaletempo filter ("-af scaletempo" or in SMPlayer just "scaletempo" in Options->Preferences->Advanced->Options for MPlayer->Audio filters) the audio should still be useable at 2x and above (if your brain is fast enough ;-)).

eli2k
28th January 2009, 02:43
Thanks! I tried out SMPlayer and it's perfect. I wish it could display the speed in the status bar, though, oh well.