Doom9's Forum - View Single Post - eac3to

tebasuna51 · 14th June 2019, 02:33

It is know than encoders add initial silence samples to initialize some encoders buffers, for instance if you recode to AC3 you obtain a delay of 5 ms, until 38 ms with some AAC encoders.

But with some encoders that delay is stored in metadata and any decoder must restore the audio without delay. For instance AAC in mp4 container (.m4a) must play without delay.
I can't reproduce the problem recoding DTSHD to FLAC, for me the obtained .flac is decoded without delay.

14th June 2019, 02:33	#14840 \| Link
tebasuna51 Moderator Join Date: Feb 2005 Location: Spain Posts: 6,914	It is know than encoders add initial silence samples to initialize some encoders buffers, for instance if you recode to AC3 you obtain a delay of 5 ms, until 38 ms with some AAC encoders. But with some encoders that delay is stored in metadata and any decoder must restore the audio without delay. For instance AAC in mp4 container (.m4a) must play without delay. I can't reproduce the problem recoding DTSHD to FLAC, for me the obtained .flac is decoded without delay. __________________ BeHappy, AviSynth audio transcoder.