Bug 1508 - flac files made by dbpoweramp don't play properly (massive distortion)
: flac files made by dbpoweramp don't play properly (massive distortion)
Status: CLOSED FIXED
Product: SB 2/3
Classification: Unclassified
Component: Audio
: unspecified
: All All
: P2 major (vote)
: ---
Assigned To: Vidur Apparao
:
Depends on:
Blocks:
  Show dependency treegraph
 
Reported: 2005-05-06 16:38 UTC by Kevin Pearsall
Modified: 2008-12-18 11:37 UTC (History)
0 users

See Also:
Category: ---


Attachments
flac file that won't play properly (9.35 MB, application/octet-stream)
2005-05-06 16:40 UTC, Kevin Pearsall
Details

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Description Kevin Pearsall 2005-05-06 16:38:08 UTC
customer reported, i have a sample file but it may be too large to attach to the
bug.

everything looks fine in the encoding, it's not using an odd blocksize or
anything (it's using 4608, which is the same as all of my flac files on my linux
machine at home)...  but this file will not play.

as a workaround i recommended disabling the FLAC->FLAC/built-in transcoding
rule, and the files play fine when using the flac decoder included with the
server...

the vorbis tag looks like such:
TITLE=Short Order
ARTIST=Alex De Grassi
ALBUM=Deep at Night
DATE=1991
GENRE=New Age#
ENCODEDBY=FairStars Audio Converter
TRACKNUMBER=4
Comment 1 Kevin Pearsall 2005-05-06 16:38:55 UTC
also when stringsing the file it says:
reference libFLAC 1.1.1 20041001
Comment 2 Kevin Pearsall 2005-05-06 16:40:30 UTC
Created attachment 496 [details]
flac file that won't play properly
Comment 3 KDF 2005-05-06 17:20:30 UTC
does FLAC encode in both byte orders?
Comment 4 Blackketter Dean 2005-06-13 17:22:14 UTC
vidur to listen to this file.
Comment 5 Vidur Apparao 2005-07-11 14:07:40 UTC
No, FLAC uses a canonical byte order. The only difference I see between the
attached file and other ones that play correctly are higher precision and
quantization for quantized linear-prediction coefficients (these values are
generally left up to the flac encoder, by specificable during encoding using the
-q or --qlp-coeff-previcision option). Other than that, the analysis file of the
attached track (generated using flac -a) doesn't seem that remarkable.
Comment 6 Vidur Apparao 2005-07-17 17:36:35 UTC
Fixed with firmware 15.
Comment 7 Chris Owens 2008-03-11 11:28:14 UTC
This bug was marked resolved in Slimserver 6.1, which is several versions ago.  If you're still seeing this bug, please re-open it.  Thanks!