24 bit flacs

[iBOOST04]

As this is technically freeware (and i do want to donate, great job!) I'm not too concerned. I thought however that i'd ask this question and see if anyone had an answer. I have been recording a bunch of albums to 24 bit 96khz flaacs. I can play these back with flaac players at home but at my desk at work I'd love to play them back. I obviously understand the degraded sound quality but.......work environment....laptop speakers...u get the gist. Whenever I try and stream a 24bit / 96khz flaac the flash player sits @ 0:00. I assume its due to it needing an additional flag to have it downsampled to 16bit@44.1k . Is there a flag that I could throw at lame within subsonic to do this or is this just slightly beyond the capabilities of subsonic?

[mixmaster]

Click the name of the first song in your playlist. It's a bug in the 3.7beta1 in that the player doesn't start automatically.
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[iBOOST04]

I'm still using 3.6. Didn't like the interface on 3.7 b1.

[mixmaster]

Well, I can't test for a repro, but did you try clicking the name of the first song?

Just out of curiosity, what about the interface don't you like in 3.7b1?
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[Hobbit13]

Too bad this post has no definitive answer.

My collection also contains alot of 24bit flacs, and they do not recode correctly in Subsonic.

I did some research on this topic. Lame does support 24bit input, but it will generate 24bit MP3's which only MAD can decode. (according to 'DewDude' http://forum.dbpoweramp.com/showthread.php?t=6642 )

Flac.exe can not ouput in other bit depth that it's input. (which would be lossy) It has the -bps option to overrule input bitdepth detection, but that will give clipping etc.

Tools like SSRC.exe and SOX.exe can do resampling etc, but I didn't figure out how to put them in the transcode chain of subsonic.

Anny suggestions?

[rwagter]

I had the same problem:

http://forum.subsonic.org/forum/viewtopic.php?t=3278

but after replacing the supplied flac.exe with version 1.2.1
http://sourceforge.net/projects/flac/files/flac-win/flac-1.2.1-win/flac-1.2.1b.exe/download

(install it and copy the flac.exe (on a windows box found under c:\program files\flac) to c:\subsonic\transcode))

the 24-bit flac's transcode just nicely.

You can also change step 1 in the webinterface/transcode into:
ffmpeg -i %s -f wav -
do check if ffmeg is provided in you're version (again in c:\subsonic\transcode on a windhose box). This is the preffered way as og version 4.01

Ralph

ps. be shure to rename the old flac so that you can always go back to the original.

[Hobbit13]

@rwagter: Thanks for pointing me to the new Flac version.

I updated to Flac 1.2.1b, this gave me support for 24bit/48khz, but not 96KHz.

Then I updated the Lame to a Float supported version (3.99a in my case) this also gave me 96KHz support

Now almost all files on my server are played nicely. Only 5 channel Flac and DTS/AC3 not. ffmpeg should be able to transcode DTS/AC3, will look into that soon.

Any suggestions for 5.1 Flac?

[Californian]

@rwagter: Thanks for pointing me to the new Flac version.

I updated to Flac 1.2.1b, this gave me support for 24bit/48khz, but not 96KHz.

Then I updated the Lame to a Float supported version (3.99a in my case) this also gave me 96KHz support

Now almost all files on my server are played nicely. Only 5 channel Flac and DTS/AC3 not. ffmpeg should be able to transcode DTS/AC3, will look into that soon.

Any suggestions for 5.1 Flac?

Thanks for this post. I did everything here (got 1.2.1b, installed it, got the binaries and put them in \subsonic\transcode, put lame 4.0a14 in transcode), but to no avail. I thought that perhaps it was just because my android phone was transcoding itself (which would be foolish, but a possibility anyway), so I tried it from the web interface. No luck still.
Here are my transcode settings for flac>mp3:
ffmpeg -i %s -f wav -
lame -b %b - -
Any ideas what I'm doing wrong? Thanks in advance

[Hobbit13]

The settings that work for me:

Flac -> MP3:
Step 1: flac -c -s -d %s
Step 2: lame -b %b - -


with Lame 3.99a,

try to use at least 3.99 alpha, that version added the FLOAT PCM support which is needed. If I remember correctly Lame 4 beta is much older than the 3.99a.

[WACOMalt]

Sorry to bring back an old thread, but I have some 5.1 Surround FLACs that are not transcoding. I tried adding your transcode lines with the newest versions of lame (3.99.5) and flac. Doesnt seem to be working. I click a song and it just sits there. Any ideas?

[GJ51]

Upgrqaded to a recent release of ffmpeg?

[WACOMalt]

ffmpeg is not even in the transcode for flac to mp3 for me. My transcaode lines are as follows:

Flac -> MP3:
Step 1: flac -c -s -d %s
Step 2: lame -b %b - -

[WACOMalt]

Too add some more info, the files I am using are at 24bpc, 96000 bitrate, 6 channels. I am attempting to transcode to 320 MP3 2 channel.

[WACOMalt]

GJ51 thanks for the notice. I didn't realize that the standard mp3 transcode line that comes with subsonic would work perfect with the updated ffmpeg, you caused me to look into it and update to this version: http://ffmpeg.zeranoe.com/builds/ (the top 32 bit windows version)

All working perfectly now, thanks!

[GJ51]

Glad to hear you got it working. 24 bit flac files have always been a bit of a challenge in Subsonic/Madsonic.