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FS#12019 - High pitch noise when decoding AAC SBR files

Attached to Project: Rockbox
Opened by Andree Buschmann (Buschel) - Sunday, 20 March 2011, 01:15 GMT+2
Last edited by Andree Buschmann (Buschel) - Sunday, 20 March 2011, 17:03 GMT+2
Task Type Bugs
Category Codecs
Status Closed
Assigned To Andree Buschmann (Buschel)
Player Type All players
Severity Low
Priority Normal
Reported Version Release 3.8
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Private No

Details

Like described in the forums there is a high pitch noise added when decoding AAC HE / AAC SBR files. Please see http://forums.rockbox.org/index.php/topic,27465.0.html for more details.
This task depends upon

Closed by  Andree Buschmann (Buschel)
Sunday, 20 March 2011, 17:03 GMT+2
Reason for closing:  Fixed
Additional comments about closing:  Fixed with r29266 and on v3.8 branch for v3.8.x.
Comment by Andree Buschmann (Buschel) - Sunday, 20 March 2011, 01:17 GMT+2
The patch changes the headroom for the auto correlation calculations in the hf-generator. The headroom was not sufficient.
   aac_he_v01.patch (0.5 KiB) 
 apps/codecs/libfaad/sbr_hfgen.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comment by Andree Buschmann (Buschel) - Sunday, 20 March 2011, 16:54 GMT+2
The fix above was verified by grums, who reported the issue.

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