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Is AAC gapless playback working (r3.9.1) ?

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grums:
Thanks, both - I noticed that NeroAAC encoder is specifically mentioned in the release notes (FS#12185) as being able to produce correct files to be played by r3.9.1 - I would be very grateful if a knowledgeable person would reveal the magic instructions for the 1.5.4.0 encoder version?

(I've tried: --help for the encoder, quickly browsing hydrogenauido and Nero sites).

PS: Why AAC when Vorbis playback works fine? Because my Zen will not play Vorbis; I suspect it might not be able to play gapless AAC, but then at least I only have to encode once for 2 players...

saratoga:

--- Quote from: grums on September 05, 2011, 03:29:17 PM ---Thanks, both - I noticed that NeroAAC encoder is specifically mentioned in the release notes (FS#12185) as being able to produce correct files to be played by r3.9.1 - I would be very grateful if a knowledgeable person would reveal the magic instructions for the 1.5.4.0 encoder version?
--- End quote ---

I doubt theres any difference between those versions, but you can check with Ahead if you're unsure.

Lear:

--- Quote from: grums on September 05, 2011, 03:29:17 PM ---Thanks, both - I noticed that NeroAAC encoder is specifically mentioned in the release notes (FS#12185) as being able to produce correct files to be played by r3.9.1 - I would be very grateful if a knowledgeable person would reveal the magic instructions for the 1.5.4.0 encoder version?

--- End quote ---

No magic needed. The encoder includes the gapless information automatically (I just tested on a small file). It is there in two formats, actually. At least the 1.5.4.0 version supports the iTunes tag format, which worked fine before 3.9.1. The fix was for the case when the iTunes tag was not present.

If you're still having problem with gapless playback, I'd start looking if something happens with the files after encoding but before playback by Rockbox.

grums:
You're right: last night I found out that mp3tag wipes out 'unknown MP4 tags' in the version I used. I'll test untouched encoded files tonight.

Results of investigation: The MP3TAG program removes the (iTunes-) ITUNSMPB tag, which Nero AAC writes, and which presumably contains timing info concerning the end of the track vs. end of file.
Without this tag gapless playback is out of the question.
The website for MP3TAG claims that theses tags will be untouched, so maybe my settings are incorrect - I'll return when I have a conclusion.
Until then I'll use TAGSCAN - hopefully without side-effects...

Playback is much better now, BUT: I hear a small pop when switching tracks, it's not a delay between the tracks, and it's not there when I play FLAC or Vorbis - any ideas?

Lear:

--- Quote from: grums on September 06, 2011, 03:52:13 AM ---The MP3TAG program removes the (iTunes-) ITUNSMPB tag, which Nero AAC writes, and which presumably contains timing info concerning the end of the track vs. end of file.

--- End quote ---

Do you mean the program at http://www.mp3tag.de? That one doesn't remove the ITUNSMPB tag when I use it. And yes, that tag contains gapless information.


--- Quote ---Without this tag gapless playback is out of the question.

--- End quote ---

Actually, not by itself. Nero writes gapless in another format too, that Rockbox also supports. A program could remove that other format too, though.


--- Quote ---Playback is much better now, BUT: I hear a small pop when switching tracks, it's not a delay between the tracks, and it's not there when I play FLAC or Vorbis - any ideas?

--- End quote ---

Not really. But what do you mean by "switching"? Pressing next?

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