Support and General Use > Audio Playback, Database and Playlists

Clip+ playback: AAC/SBR 82 kbit/s - high pitch sound added

(1/4) > >>

grums:
I've encoded a track using neroaacenc -q 29, resulting in an AAC/SBR file with kbitrate 82.
When I playback on the Clip+, some high-pitched sound is added on top of a saxophone.
Problem is on RB 3.7.1 and 3.8.
No problem with playback on a Creative Zen, or Windows foobar2000 (through Behringer UCA202 DAC), or on Clip+ with forced LC encoded track.
Problem is also on Windows Clip+ simulators (using the DAC).
I've used speakers and several different phones, same result.
I have a .7z archive with 3 18 sec soundfiles, encoder and doc.

Ole

Buschel:
This sounds like an issue with the software decoder itself. Can you provide a sequence (ony a few seconds) to further analyze this? I will need the original pcm, the encoded m4a, the foobar decoded pcm and the clip+ simulation decoded pcm.

grums:
Sorry about my ignorance, I'm not exactly an expert on this: please hint me about how to provide the following:

* the foobar decoded pcm (maybe I can find out myself)
* the clip+ simulation decoded pcm - hmmm...Ole

Buschel:
No problem, let me try to explain.

1) You will be able to decode the m4a file to a wav-file. Just provide this wav-file.
2) I can do this by myself, if you provide the m4a. Rockbox has the possibility to decode any audio file to wav and write this to flash or HDD.

grums:
OK, the archive is on http://dl.dropbox.com/u/6132290/clipplus-aac.7z -
Please notify me when it's downloaded.

Navigation

[0] Message Index

[#] Next page