Hi all, The bug can be reproduced in the following way: 1) Encode a wav file with NeroAacEnc or any other aac encoder. 2) Decode the mp4/m4a file with mplayer by -ao pcm:file=out.wav out.wav has longer duration than the original wav file. By comparing the two PCM side by side, I found that a delay is added to beginning of the decoded wav file. The length of the delay depends on samplerate and settings. HE-AAC and lower samplerate has longer delays. HEv2 @ 44100Hz has a delay as long as 112ms, which is obviously audible. NeroAacDec and foobar2000 has no such problem. Any idea to fix it? Regards, Zhou Zongyi _______________________________________________ MPlayer-users mailing list MPlayer-users@xxxxxxxxxxxx https://lists.mplayerhq.hu/mailman/listinfo/mplayer-users