Re: [slim] Resampling with sox
44.1kHz/16-bit FLACs get transcoded when the flac has an embedded cuesheet. I.E. whole-album flacs are always transcoded vs. track-per-flac flacs which should get streamed "unprocessed" as you say. -- gharris999 gharris999's Profile: http://forums.slimdevices.com/member.php?userid=115 View this thread: http://forums.slimdevices.com/showthread.php?t=60305 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Resampling with sox
lauret;400379 Wrote:
> But why are 44.1kHz/16-bit FLACs transcoded? Why aren't they streamed
> unprocessed to the SB?
Testing on my SB3 with a 44.1khz/16-bit ripped to FLAC CD track, 'More
Info' is not showing it as being transcoded. If, however, I play the
same track on SoftSqueeze where I have created a custom-convert.conf
transcoding FLAC to FLAC to 44.1khz/16-bit via sox, it does show as
being transcoded. This is what I would expect.
If you still have 'D:{RESAMPLE=-r %d -2}' in your 'flc flc transcode *'
section of convert.conf, I still don't see a reason why that section
would be chosen over the standard 'flc flc * *' if the file being
streamed is 44.1khz/16-bit. However, if you have modified the 'flc flc
* *' section to include sox, that would explain it.
Incidentally, it was your '[sox] -q -t wav - -t flac -C 0 *-b 16*
dither $RESAMPLE$ - ' that gave me the idea of how to stream files
greater than 44.1k and/or greater than 16-bit to SoftSqueeze so thanks.
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Re: [slim] Resampling with sox
Mick Seymour;400210 Wrote: > Rules concerning the different SBs hardware decoding capabilities. But why are 44.1kHz/16-bit FLACs transcoded? Why aren't they streamed unprocessed to the SB? -- lauret lauret's Profile: http://forums.slimdevices.com/member.php?userid=17632 View this thread: http://forums.slimdevices.com/showthread.php?t=60305 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Resampling with sox
lauret;400199 Wrote: > Has anybody an idea what invokes the 'flc flc transcode *' rule rather > that the 'flc flc * *' rule? Rules concerning the different SBs hardware decoding capabilities. -- Mick Seymour Mick Seymour's Profile: http://forums.slimdevices.com/member.php?userid=21137 View this thread: http://forums.slimdevices.com/showthread.php?t=60305 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Resampling with sox
Has anybody an idea what invokes the 'flc flc transcode *' rule rather that the 'flc flc * *' rule? -- lauret lauret's Profile: http://forums.slimdevices.com/member.php?userid=17632 View this thread: http://forums.slimdevices.com/showthread.php?t=60305 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Resampling with sox
Ok, I changed it in:
flc flc transcode *
# FT:{START=--skip=%t}U:{END=--until=%v}D:{RESAMPLE=-r %d -2}
[flac] -dcs $START$ $END$ -- $FILE$ | [sox] -q -t wav - -t flac -C 0
$RESAMPLE$ -
Where the "-2" is 2 bytes or 16 bits. But now some 44.1/16-bits music
is also converted (it says so in the More Info menu). This music didn't
play yesterday (I thought maybe because dithering is a heavy process for
a PII), so I removed it. But why is some 44.1/16-bit music transcoded?
(I have only flacs, and I can't see a difference between cd's)
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Re: [slim] Resampling with sox
Hi,
$RESAMPLE$ is just a placeholder for D:{RESAMPLE=*-r %d*} and will be
evaluated on runtime.
You should take a look at the running process and its parameters to see
if it fits your needs...
You could also exec this command manually and redirect the output to a
new flac file, for analysis with foobar2000 or similar tools.
kind regards,
Markus
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Re: [slim] Resampling with sox
Ok, I tried to edit the convert.conf. First I created
/etc/slimserver/custom-convert.conf. Then I thought that this one is
for normal flac playback:
flc flc * *
-
And that this one is for transcoding:
flc flc transcode *
# FT:{START=--skip=%t}U:{END=--until=%v}D:{RESAMPLE=-r %d}
[flac] -dcs $START$ $END$ -- $FILE$ | [sox] -q -t wav - -t flac -C 0
-b 16 dither $RESAMPLE$ -
I added the "-b 16 dither". Is that about correct? I wasn't sure about
the $RESAMPLE$ command, because dithering should be last.
Thanks!
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Re: [slim] Resampling with sox
Probably, you could hack the convert.conf file. -- andyg andyg's Profile: http://forums.slimdevices.com/member.php?userid=3292 View this thread: http://forums.slimdevices.com/showthread.php?t=60305 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Resampling with sox
andyg;398064 Wrote: > The bit depth of the source file is not changed. The sample rate is > halved, as you describe. Is it possible to add anywhere a command that the file also gets downsampled to 16-bit whenever sox is processing hi-rez files? -- lauret lauret's Profile: http://forums.slimdevices.com/member.php?userid=17632 View this thread: http://forums.slimdevices.com/showthread.php?t=60305 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
Re: [slim] Resampling with sox
The bit depth of the source file is not changed. The sample rate is halved, as you describe. -- andyg andyg's Profile: http://forums.slimdevices.com/member.php?userid=3292 View this thread: http://forums.slimdevices.com/showthread.php?t=60305 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
[slim] Resampling with sox
As of version 7.3.2 extended resampling is supported: >Improved playback of high-resolution audio tracks. Sound eXchange (SoX) now >resamples higher-rate FLAC or Ogg tracks to lower sample-rate FLAC compatible >with your player. Previous 7.3.1 release resampled only to MP3 format. My question is: is it possible to select the output bit depth for resampling? My DAC is a 16-bit DAC, so the last bits get truncated. And is it possible to select the preferred sampling frequency? I would like to transcode 96kHz in 48kHz and 88.2kHz in 44.1kHz as the sampling frequency is then halved. -- lauret lauret's Profile: http://forums.slimdevices.com/member.php?userid=17632 View this thread: http://forums.slimdevices.com/showthread.php?t=60305 ___ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
