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mark1234

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October 8, 2007
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Symphy,

I am getting crazy now with MediaPortal.

At the moment, I am not getting any sound at all from the PureAudio plugin.
I do not have any clue what is causing this.
When I use the WinAmp plugin, everything works fine. All my flac files work
fine.

The strange thing is that my AC3Filter, which I use for DVDs does not work
for PCM audio as well. AC3 and DTS are played well, but when a DVD has
PCM Audio, there is no sound from the speakers. In AC3Filter, there is
an option to convert PCM Audio to AC3. When I select this option there
is sound.

It looks like there is some "internal" problem with PCM Audio. However,
Winamp is playing it well!!!

Any suggestions what could be causing this?
 

Helios61

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  • January 30, 2008
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    Hello Mark!

    Please send your Logfiles and fill out your Systemspecifications. Then it's much easier to help!

    @ Symphy

    8. Digital Output
    1)Connector Type : RCA(provided via breakout cable), Optical(on
    board)
    2) Format : IEC-60958 Consumer(S/PDIF coaxial)
    3) Sampling Rate : 44.1,48,88.2,96,176.4,192KHz(176.4,192kHz only coaxial)
    4) Resolution : 24-Bit
    I think, the problem is the Receiver!

    Funny, the '96' listed for samplingrate actually refers to 96000, so in theory it should work 'at full speed'.
    Maybe the quality of the s/pdif cable is insufficient. s/pdif can be problematic sometimes at higher samplingrates.
    You could also check if there are any settings for the juli@ s/pdif that may be in the way. I'm not familiar with the device, but it may be locked to 48000 or something.

    Problem is the Receiver!

    Yamaha Manual

    Notes
    l When you connect an audio/video unit to both of the digital
    and analog terminals of this unit, make sure to connect to
    both terminals of the same name.
    l Be sure to attach the covers when the OPTICAL terminals
    are not being used, in order to protect the terminals from
    dust.
    l In order to make this unit perform successful DTS-decoding,
    the DTS bitstream must not be altered, manipulated or
    corrupted in the process of sending the DTS bitstream from
    the DIGITAL OUT terminal of an external unit to a digital
    signal input terminal of this unit.
    l All digital audio signal input terminals are applicable to the
    sampling frequency of 32 kHz, 44.1 kHz and 48 kHz
    .

    Best Regards
    Helios
     

    Symphy

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    Don't see anything unusual in the log, MP plays normally...

    The device used is "Digital Output Device (SPDIF) (2- High Definition Audio Device)" over directx.
    You sure you use the same one in winamp? The device mentioned is probably not windows default device, so winamp may use another if nothing particular has been selected.
    Why this spdif device is silent, i dont know, but i'm sure its a setting or connection somewhere. volume? mute?
     

    mark1234

    Portal Member
    October 8, 2007
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    Symphy,

    Indeed, the PureAudio plugin used to work on my system. Somehow, something has
    changed and that's the reason why it is not working anymore. It's very strange and
    I do not know what it is. The only thing I do know is that Winamp is able to get sound
    over SPDIFF. I've checked the volume and mute settings. But that's not it.
    I think Winamp uses another API call to control the SPDIFF.

    In Winamp, the output is configured as:

    NullSoft DirectSound Output v2.48 [out_ds.dll]


    The output which I can select in PureAudio is:

    1. Default Sound Device
    2. Digital Output Device (SPDIF) (2- High Definition Audio Device)

    Both of these outputs don't work (anymore).

    Perhaps you can add a third output: DirectSound (which is DirectShow???)
     

    Symphy

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  • August 25, 2007
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    Symphy,

    Indeed, the PureAudio plugin used to work on my system. Somehow, something has
    changed and that's the reason why it is not working anymore. It's very strange and
    I do not know what it is. The only thing I do know is that Winamp is able to get sound
    over SPDIFF. I've checked the volume and mute settings. But that's not it.
    I think Winamp uses another API call to control the SPDIFF.

    In Winamp, the output is configured as:

    NullSoft DirectSound Output v2.48 [out_ds.dll]


    The output which I can select in PureAudio is:

    1. Default Sound Device
    2. Digital Output Device (SPDIF) (2- High Definition Audio Device)

    Both of these outputs don't work (anymore).

    Perhaps you can add a third output: DirectSound (which is DirectShow???)

    Both devices you see there in pureaudio are DirectSound. (DirectSound is the audio 'department' of DirectX, DirectShow the video stuff)

    The "Default Sound Device" is not a device in itself but refers to the device that is selected through the windows control panel (Sounds and Audiodevices), so you may want to have a look there.

    This means that the spdif thing is the only actual device that is seen by pureaudio. I'm pretty sure there must be another one, somewhere!

    What devices can be selected at (on XP) Control Panel -> Sounds and Audiodevices -> Audio tab -> Default device?
     

    mark1234

    Portal Member
    October 8, 2007
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    Symphy,

    In Vista, I have the following devices:

    1. Speakers
    Status: Not plugged in
    2. Headphones
    Status: Not plugged in
    3. Digital Output Device (SPDIFF)
    Status: Working
    This is also the default
    4. Digital Output Device (HDMI)
    Status: Disabled
     

    Symphy

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  • August 25, 2007
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    Symphy,

    In Vista, I have the following devices:

    1. Speakers
    Status: Not plugged in
    2. Headphones
    Status: Not plugged in
    3. Digital Output Device (SPDIFF)
    Status: Working
    This is also the default
    4. Digital Output Device (HDMI)
    Status: Disabled

    Ok that explains why only spdif is listed in pureaudio. Funny thing is that winamp is probably using that same one too....

    I don't know whats going on there! I would try to figure out what has changed on your system when it stopped working. Or maybe reinstall/update drivers, never know.
     

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