Support and General Use > Audio Playback, Database and Playlists

Is AAC gapless playback working (r3.9.1) ?

(1/3) > >>

grums:
Sorry if the answer is too obvious, I'm unable to find it:

Just saw release notes of r3.9.1 claiming to fix AAC gapless playback, I installed and tried it: it doesn't seem to work on my Clip+.
Vorbis-encoded files from the same source play gapless OK.

Do I have to prepare the files for neroAAC 1.5.4.0 encoder in any special way, or is there a special/secret tag being used for the encoding?

The files were ripped using EAC instructed to delete leading/trailing silent blocks, but I'm not aware if that actually means silent samples...

saratoga:
You don't have to do anything to use gapless.  The encoder simply writes the gapless tags, and the decoder uses them to decode the file without adding extra samples.

grums:
OK - does that mean that the encoder merely instructs the decoder to use gapless playback (if possible)?
Still, in my example: where does the difference in Vorbis and AAC playback come from, when they're encoded from same FLAC file, and supposedly both capable of gapless playback?

Llorean:
Gapless playback is only used if the encoder knows how to make a gapless file. AAC isn't natively gapless, so it's possible to create AAC files without the proper data to be played back without gaps, while Vorbis is natively gapless so any (non-buggy) encoder will create Vorbis files that will be played gaplessly by Rockbox if they come from gapless source files.

saratoga:

--- Quote from: grums on September 05, 2011, 02:38:21 PM ---OK - does that mean that the encoder merely instructs the decoder to use gapless playback (if possible)?

--- End quote ---

Correct. 

Navigation

[0] Message Index

[#] Next page