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DTS .ac3 files

This topic contains 18 replies, has 5 voices, and was last updated by  fizze 10 years, 4 months ago.

Viewing 15 posts - 1 through 15 (of 19 total)
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  • #766

    fd0

    Hi

    I have been searching on this issue for a while but I seem to be unable to find the right info.
    In my collection I have a bunch of DTS coded .ac3 files and my amp is a Denon DTS amp. I use Roku SB 1000 and according to their site it is possible to use SB to listen to DTS files. How do I go about to make this work.

    mp3 is easy, has been running with mt-daapd for quite some time without any probs.

    any help is appreciated

    TIA
    fd0

    NB SB500 changed into SB1000

    #7239

    fizze
    Participant

    in the soundbridge menu theres a setting like “stream multichannel audio” or, sort of.
    You need that setting so it passes the ac3 sound.

    I donno whats neccy on the firefly side.

    But im curious to know since I’ll be sport a new DD capable amp soonish, too. πŸ™‚

    #7240

    fd0

    @fizze wrote:

    in the soundbridge menu theres a setting like “stream multichannel audio” or, sort of.
    You need that setting so it passes the ac3 sound.

    I donno whats neccy on the firefly side.

    But im curious to know since I’ll be sport a new DD capable amp soonish, too. πŸ™‚

    I checked my soundbridge and multichannel audio is swtched on
    I also checked the songs.gdb using strings and found that the files were indexed, meaning the entry in the conf file works :

    extensions .mp3,.m4a,.m4p,.wma,.ac3,aac,.wav,.aiff

    What more is needed to ensure mt-daapd (v 0.2.4) running on gentoo linux to serve .ac3 files to my SB

    TIA
    fd0

    #7241

    rpedde
    Participant

    @fd0 wrote:

    @fizze wrote:

    in the soundbridge menu theres a setting like “stream multichannel audio” or, sort of.
    You need that setting so it passes the ac3 sound.

    I donno whats neccy on the firefly side.

    But im curious to know since I’ll be sport a new DD capable amp soonish, too. πŸ™‚

    I checked my soundbridge and multichannel audio is swtched on
    I also checked the songs.gdb using strings and found that the files were indexed, meaning the entry in the conf file works :

    extensions .mp3,.m4a,.m4p,.wma,.ac3,aac,.wav,.aiff

    What more is needed to ensure mt-daapd (v 0.2.4) running on gentoo linux to serve .ac3 files to my SB

    TIA
    fd0

    That’s it. What exactly isn’t working? Do you see them while browsing but they don’t play? Or do you not even see them when browsing? They won’t have any metadata, so you’ll just see filenames as the title.

    #7242

    fd0

    @rpedde wrote:

    That’s it. What exactly isn’t working? Do you see them while browsing but they don’t play? Or do you not even see them when browsing? They won’t have any metadata, so you’ll just see filenames as the title.

    the SB1000 shows the file but doesnt play it. Seems it cannot play native .ac3 files. Is there a way around it? like using transcoding?

    tnx

    #7243

    rpedde
    Participant

    @fd0 wrote:

    @rpedde wrote:

    That’s it. What exactly isn’t working? Do you see them while browsing but they don’t play? Or do you not even see them when browsing? They won’t have any metadata, so you’ll just see filenames as the title.

    the SB1000 shows the file but doesnt play it. Seems it cannot play native .ac3 files. Is there a way around it? like using transcoding?

    tnx

    Yes, but I don’t know if the soundbridge will do multichannel wav files, or how one would convert it to a multichannel wav file.

    But generally, add ac3 to the transcode codecs, and edit your transcode script to convert the .ac3 file to a wav file.

    That’s the rub, of course. I don’t know what an .ac3 file is, or what the tools are to deal with it. But by copying the transcoding stuff in the mt-daapd-ssc.sh, you can probably work it out, given that you apparently are already familiar with the format.

    — Ron

    #7244

    S80_UK
    Participant

    My understanding (actually my assumption) was that the “multi-channel audio” option simply allows the Soundbridge to pass the AC3 content unmodified out of the SPDIF port to any suitable external decoder – such as an AV Receiver. I am not aware of any other way to play these files without the server-side transcoding, in which case the option in the SoundBridge would be redundant.

    #7245

    rpedde
    Participant

    @s80_uk wrote:

    My understanding (actually my assumption) was that the “multi-channel audio” option simply allows the Soundbridge to pass the AC3 content unmodified out of the SPDIF port to any suitable external decoder – such as an AV Receiver. I am not aware of any other way to play these files without the server-side transcoding, in which case the option in the SoundBridge would be redundant.

    I’ll ask one of the roku engineers if they have a codectype for raw ac3 content.

    — Ron

    #7246

    fd0

    @rpedde wrote:

    Yes, but I don’t know if the soundbridge will do multichannel wav files, or how one would convert it to a multichannel wav file.

    But generally, add ac3 to the transcode codecs, and edit your transcode script to convert the .ac3 file to a wav file.

    — Ron

    Thanks Ron

    Testing with mt-daapd/svn-1417 now

    I added .shn and .ac3 :

    extensions = .mp3,.m4a,.m4p,.flac,.ogg,.shn,.aac,.ac3
    and
    ssc_codectypes = ogg,flac,alac,shn,ac3

    but this does not seem to work for .ac3 and .shn; it does work for .flac.

    When a .ac3 file is added to the db i see the following in the log:

      2006-11-14 10:21:30 (b73096b0): Found /music/home/fd0/cd/25. Chronology 6.ac3
      2006-11-14 10:21:30 (b73096b0): Executing: select * from songs where path=’/music/home/fd0/cd/25. Chronology 6.ac3′ and idx=0
      2006-11-14 10:21:30 (b73096b0): Executing: INSERT INTO updated VALUES (3326)
      2006-11-14 10:21:30 (b73096b0): Rows: 1
      2006-11-14 10:21:30 (b73096b0): Found music file: 25. Chronology 6.ac3
      2006-11-14 10:21:30 (b73096b0): Date Added: 1163494269
      2006-11-14 10:21:30 (b73096b0): Codec: unkn
      2006-11-14 10:21:30 (b73096b0): Executing: select count(*) from songs where path=’/music/home/fd0/cd/25. Chronology 6.ac3′ and idx=0
      2006-11-14 10:21:30 (b73096b0): Executing: UPDATE songs SET title=’25. Chronology 6.ac3′,artist=”,album=”,genre=”,comment=”,type=’ac3′,composer=”,orchestra=”,
      conductor=”,grouping=”,url=”,bitrate=0,samplerate=0,song_length=600000,file_size=20821248,year=0,track=0,total_tracks=0,disc=0,total_discs=0,time_modified=116349
      4269,db_timestamp=1163496090,bpm=0,disabled=0,compilation=0,rating=0,sample_count=0,codectype=’unkn’ WHERE path=’/music/home/fd0/cd/25. Chronology 6.ac3′ and idx=0
      2006-11-14 10:21:30 (b73096b0): Rows: 1
      2006-11-14 10:21:30 (b73096b0): Executing: insert into updated (id) select id from songs where path=’/music/home/fd0/cd/25. Chronology 6.ac3′ and idx=0
      2006-11-14 10:21:30 (b73096b0): Rows: 1

    And for a .shn the following is in the log

      2006-11-14 10:21:30 (b73096b0): Found /music/home/fd0/cd/01_AlchemyoftheHeart.shn
      2006-11-14 10:21:30 (b73096b0): Executing: select * from songs where path=’/music/home/fd0/cd/01_AlchemyoftheHeart.shn’ and idx=0
      2006-11-14 10:21:30 (b73096b0): Executing: INSERT INTO updated VALUES (3304)
      2006-11-14 10:21:30 (b73096b0): Rows: 1
      2006-11-14 10:21:30 (b73096b0): Found music file: 01_AlchemyoftheHeart.shn
      2006-11-14 10:21:30 (b73096b0): Date Added: 1163366523
      2006-11-14 10:21:30 (b73096b0): Codec: unkn
      2006-11-14 10:21:30 (b73096b0): Executing: select count(*) from songs where path=’/music/home/fd0/cd/01_AlchemyoftheHeart.shn’ and idx=0
      2006-11-14 10:21:30 (b73096b0): Executing: UPDATE songs SET title=’01_AlchemyoftheHeart.shn’,artist=”,album=”,genre=”,comment=”,type=’shn’,composer=”,orchestra=”,conductor=”,grouping=”,url=”,bitrate=0,samplerate=0,song_length=600000,file_size=40972629,year=0,track=0,total_tracks=0,disc=0,total_discs=0,time_modified=1163366523,db_timestamp=1163496090,bpm=0,disabled=0,compilation=0,rating=0,sample_count=0,codectype=’unkn’ WHERE path=’/music/home/fd0/cd/01_AlchemyoftheHeart.shn’ and idx=0
      2006-11-14 10:21:31 (b73096b0): Rows: 1
      2006-11-14 10:21:31 (b73096b0): Executing: insert into updated (id) select id from songs where path=’/music/home/fd0/cd/01_AlchemyoftheHeart.shn’ and idx=0
      2006-11-14 10:21:31 (b73096b0): Rows: 1

    The following shows when selecting a .shn file in iTunes

      2006-11-14 10:23:11 (b5ababa0): Executing: select * from songs where id=3304
      2006-11-14 10:23:11 (b5ababa0): Thread 310: Length of file (remaining) is 40972629
      2006-11-14 10:23:11 (b5ababa0): Updating Content-Type from application/x-dmap-tagged to audio/shn
      2006-11-14 10:23:11 (b5ababa0): Added *Content-Length=40972629*
      2006-11-14 10:23:11 (b5ababa0): Updating Connection from close to Close
      2006-11-14 10:23:11 (b5ababa0): Emitting reponse header Content-Length: 40972629
      2006-11-14 10:23:11 (b5ababa0): Emitting reponse header Expires: -1
      2006-11-14 10:23:11 (b5ababa0): Emitting reponse header Cache-Control: no-cache
      2006-11-14 10:23:11 (b5ababa0): Emitting reponse header DAAP-Server: firefly/svn-1417
      2006-11-14 10:23:11 (b5ababa0): Emitting reponse header Accept-Ranges: bytes
      2006-11-14 10:23:11 (b5ababa0): Emitting reponse header Content-Language: en_us
      2006-11-14 10:23:11 (b5ababa0): Emitting reponse header Content-Type: audio/shn
      2006-11-14 10:23:11 (b5ababa0): Emitting reponse header Server: mt-daapd/svn-1417
      2006-11-14 10:23:11 (b5ababa0): Emitting reponse header Connection: Close
      2006-11-14 10:23:11 (b5ababa0): Emitting reponse header Date: Tue, 14 Nov 2006 09:23:11 GMT
      2006-11-14 10:23:11 (b5ababa0): Entering config_set_status
      2006-11-14 10:23:11 (b5ababa0): Exiting config_set_status
      2006-11-14 10:23:11 (b5ababa0): Session 0: Streaming file ’01_AlchemyoftheHeart.shn’ to 172.16.16.20 (offset 0)
      2006-11-14 10:23:11 (b5ababa0): Write error: Broken pipe
      2006-11-14 10:23:11 (b5ababa0): Finished streaming file to remote: 262144 bytes
      2006-11-14 10:23:11 (b5ababa0): Entering config_set_status
      2006-11-14 10:23:11 (b5ababa0): Exiting config_set_status
      2006-11-14 10:23:11 (b5ababa0): Thread 310: Terminating
      2006-11-14 10:23:11 (b5ababa0): Thread 310: Freeing request headers
      2006-11-14 10:23:11 (b5ababa0): Thread 310: Freeing response headers
      2006-11-14 10:23:11 (b5ababa0): Thread 310: Freeing request vars
      2006-11-14 10:23:11 (b5ababa0): Thread 310: Closing fd
      2006-11-14 10:23:11 (b5ababa0): With thread 310 exiting, 1 are still running

    I hope this is of help

    tnx
    fred

    #7247

    fizze
    Participant

    ac3 is a the raw multi-channel stream normally with 5.1 audio.

    multichannel audio on a laserdisc used to be AC3 πŸ˜‰
    and the DVD inherited that.

    There are many multi-channel audio codecs, and I personally havent ever seen a WAV file with more than 2 channels. prolly thats just the RIFF/WAVE standard, though.

    I too got many music DVDs that Id like to listen to in 5.1 over the soundbridge. I havent gotten around to buying a decent sound receiver though.

    #7248

    mraneri
    Participant

    The only reliable way I’ve found to listen to multichannel audio on the Soundbridge is to use ripped DTS encoded CDs (NOT DVD’s)… I’ve extracted DTS tracks from a DVD, but to date have not been able to convert them to WAV properly to play on the soundbridge… (I’ve tried all the usual sources…)

    I think some have gotten AC3 encoded WAV’s to play, but that’s very hit or miss… Multichannel WAV’s (not DTS WAVs) are definitely NOT going to play on the soundbridge because the soundbridge cannot re-encode the multichannel audio into a format that can make it’s way through the optical or coaxial digital cable to your receiver…

    – Mike

    #7249

    sansp00
    Participant

    Was’nt there something about multi channel in the M1000 vs M1001 debate ? Something like the old gear ( M500, M1000, M2000 ) would be pass throught but the newer versions ( M1001 ) would not ?
    Food for thought …
    Patrick S.

    #7250

    mraneri
    Participant

    Yes, there was…

    The problem is that the M1000’s will transmit 44.1kHz data at 44.1kHz, while the M1001’s will upsample the 44.1kHz data to 48kHz…

    The upconversion in the M1001’s will mangle the DTS encoding, and your receiver will not be able to decode it… Theoretically, the M1001’s should be able to play DTS content encoded at 48kHz, but I don’t know if it works.. (I only have an M1000 and 44.1kHz content, off those DTS CDs)

    #7251

    fizze
    Participant

    *bumpidy*
    got a nice A/V receiver and am keen to try this out again, with ac3 dolby-digital and dts sources, alike.
    Those M1000/M1001 samplerate conversion rumors make me feel unease, though.

    #7252

    fizze
    Participant

    This fella provides free surround music, in AC3 and WMA format….
    I tried to point the soundbridge directly to the URL, so far without success.
    I havent actually ever seen any multi-channel caps from any Soundbridge, so Im curious….

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