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  1. #1
    Senior Member Ramage's Avatar
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    AACPlus fails with 6.5.0

    I'm using 6.5.0 on win XP, which plays AACplus streams OK with no bitrate limit set. When a bitrate limit is set for a player, either SB3 or Softsqueeze 3, I get the message "Problem: Can't connect to server".

    I have switched out the firewall and ensured that all the slim applications are included in the permitted programs list of the firewall. This effect seems related to the use of lame to transcode to mp3.

    I have double checked the entries in "custom-convert.conf" and they are as per bpa's wiki entry.

    Edit: Bitrate setting works with other formats such as wma and mp3.

    6.3.1 worked OK with and without the bitrate limit set.

    Can anyone help with further diagnosis?
    Last edited by Ramage; 2006-09-28 at 01:43.
    P2 266MHz, ubuntu server 10.04 SBS 7.6.0 - r31284
    AMD64x2 ubuntu 10.04, SBS 7.5.2 - r30889
    Dell 10v WinXP SBS 7.5.2 - r31264
    Dell 10v ubuntu netbook remix 10.04, SBS 7.6.0 - r30830
    Players: Classic, Duet, Boom

  2. #2
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    Lame has to be installed for bit rate limit to work.

    If lame is installed - post a log with d_source enabled.

  3. #3
    Senior Member Ramage's Avatar
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    Thanks for quick response. Lame is installed and working OK (see the edit on my first post).

    The log using d_source attached.
    Last edited by Ramage; 2008-04-14 at 00:50.
    P2 266MHz, ubuntu server 10.04 SBS 7.6.0 - r31284
    AMD64x2 ubuntu 10.04, SBS 7.5.2 - r30889
    Dell 10v WinXP SBS 7.5.2 - r31264
    Dell 10v ubuntu netbook remix 10.04, SBS 7.6.0 - r30830
    Players: Classic, Duet, Boom

  4. #4
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    Look likes a slimserver problem - I need to investigate further.

    Can you confirm bit rate works OK with MP3 streams which provide song titles and not just MP3 files ?

  5. #5
    Senior Member Ramage's Avatar
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    Had to do a number of tests to confirm, but mp3 streams which display song titles when no bit rate limit, only display the long Station ID when bitrate limit is active, and no song titles.

    This observation could not be repeated in later tests.
    Last edited by Ramage; 2006-09-28 at 08:41. Reason: New info
    P2 266MHz, ubuntu server 10.04 SBS 7.6.0 - r31284
    AMD64x2 ubuntu 10.04, SBS 7.5.2 - r30889
    Dell 10v WinXP SBS 7.5.2 - r31264
    Dell 10v ubuntu netbook remix 10.04, SBS 7.6.0 - r30830
    Players: Classic, Duet, Boom

  6. #6
    Senior Member Ramage's Avatar
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    Further observations

    I checked some mp3 and AAC+ streams on my linux 6.3.1 box and found similar but not identical problems, may throw some more light on the problem or not.

    128K CBR MP3 streams containing song info produce white noise bursts when bit rate is set lower that the stream rate e.g 96K.

    AAC+ streams at 32K CBR convert to 96K ABR and run correctly.
    P2 266MHz, ubuntu server 10.04 SBS 7.6.0 - r31284
    AMD64x2 ubuntu 10.04, SBS 7.5.2 - r30889
    Dell 10v WinXP SBS 7.5.2 - r31264
    Dell 10v ubuntu netbook remix 10.04, SBS 7.6.0 - r30830
    Players: Classic, Duet, Boom

  7. #7
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    That's good because AACplus is essentially a MP3 with a different decoder - so the problem is not just my aacplus solution.

    What streams did you use to test ?
    I'll try to get around to this later.

  8. #8
    Senior Member Ramage's Avatar
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    Streams Tested

    Some of the streams tested on linux slimserver v 6.3.1:

    http://69.5.81.70:7050 :Boot Liquor: mp3 128K conv to 96K = noise. Song titles streamed.

    http://130.166.72.1:8006 :Classic Heartland: mp3 128K conv to 96K = noise. Song Titles streamed.

    http://72.236.125.114:8020 :Rooster Radio: AAC+ 32K conv to 96K = OK. Song titles streamed.

    http://mp3media1.abc.net.au:8060/digcountry.mp3 igCountry: mp3 128K conv to 96K = OK. Song titles not streamed.

    http://202.6.74.107:8060/digjazz.mp3 ig Jazz: mp3 128K conv to 96K = OK. Song titles not streamed.
    P2 266MHz, ubuntu server 10.04 SBS 7.6.0 - r31284
    AMD64x2 ubuntu 10.04, SBS 7.5.2 - r30889
    Dell 10v WinXP SBS 7.5.2 - r31264
    Dell 10v ubuntu netbook remix 10.04, SBS 7.6.0 - r30830
    Players: Classic, Duet, Boom

  9. #9
    Senior Member Ramage's Avatar
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    Streams tested 6.5

    Streams tested on WinXP slimserver v 6.5.0:

    http://69.5.81.70:7050 :Boot Liquor: mp3 128K conv to 96K = OK. Song titles streamed.

    http://130.166.72.1:8006 :Classic Heartland: mp3 128K conv to 96K = OK. Song Titles streamed.

    http://72.236.125.114:8020 :Rooster Radio: AAC+ 32K conv to 96K = Can't Connect.

    http://160.79.128.40:7016 :Sky Country: AAC+ 24K conv to 96K = Can't connect.

    These checks seem to contradict my previous post #5, and I can't repeat those observations. All mp3 streaming titles tested OK.
    P2 266MHz, ubuntu server 10.04 SBS 7.6.0 - r31284
    AMD64x2 ubuntu 10.04, SBS 7.5.2 - r30889
    Dell 10v WinXP SBS 7.5.2 - r31264
    Dell 10v ubuntu netbook remix 10.04, SBS 7.6.0 - r30830
    Players: Classic, Duet, Boom

  10. #10
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    A status report as I wont be able to get back to this for a while

    1. I think caching interferes with what is happening when changes are made - so sometimes a change is made but the cached value overrides the change. I found to get reproducible test results - clear database and cache between changes & runs.

    2. In 6.5 more use of direct streams was made - whereby the SB talks to the source directly. The confusion seems to be AACplus looks like an MP3 direct stream. Without bit rate limit SS identifies it as a special format and processes correctly. With bit rate it sees the end result as MP3 so it tries to direct stream to SB - but just as SS starts the direct stream SS finds the stream is in AACPlus format and can't be handled directly by SB so it stops. Use d_directstream, d_source and d_remotestream to get an idea of what is happening.

    3. I think bit rate limiting doesn't work for MP3 streams - when I enable a limit of 64k on a 96k stream - no lame process is set up and the 64 is ignored. The stream plays OK but it is not bit rate limited. This may be true of all direct stream formats - point 4 could test this.

    4. I'd like to test bit rate limit on WMA but prefer to keep my SB on a 6.3.1 NAS so if you could test this it would be helpful. Check for a lame process when stream it running.

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