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Thread: LMS 7.9 and DSD

  1. #341
    Ok, logged in as root I copied the ffmpeg binary to the /opt folder and executed the command
    export PATH=$PATH:/opt/
    then, ldd ffmpeg yields:
    ldd ffmpeg
    libm.so.6 => /lib/libm.so.6 (0x40005000)
    librt.so.1 => /lib/librt.so.1 (0x400ad000)
    libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x400bc000)
    libpthread.so.0 => /lib/libpthread.so.0 (0x400d0000)
    libc.so.6 => /lib/libc.so.6 (0x400f0000)
    /lib/ld-linux.so.3 (0x2a000000)

    but ffmpeg -h yields:
    ffmpeg -h
    -bash: /opt/ffmpeg: Permission denied

    Am i doing something wrong?

  2. #342
    Senior Member ralphy's Avatar
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    Quote Originally Posted by marakasmalan View Post
    Ok, logged in as root I copied the ffmpeg binary to the /opt folder and executed the command
    export PATH=$PATH:/opt/
    then, ldd ffmpeg yields:
    ldd ffmpeg
    libm.so.6 => /lib/libm.so.6 (0x40005000)
    librt.so.1 => /lib/librt.so.1 (0x400ad000)
    libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x400bc000)
    libpthread.so.0 => /lib/libpthread.so.0 (0x400d0000)
    libc.so.6 => /lib/libc.so.6 (0x400f0000)
    /lib/ld-linux.so.3 (0x2a000000)

    but ffmpeg -h yields:
    ffmpeg -h
    -bash: /opt/ffmpeg: Permission denied

    Am i doing something wrong?
    You need to set execute permissions

    chmod 755 /opt/ffmpeg
    Ralphy

    1-Touch, 5-Classics, 3-Booms, 1-UE Radio
    Squeezebox client builds donations always appreciated.

  3. #343
    Senior Member ralphy's Avatar
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    Quote Originally Posted by marakasmalan View Post
    Thank you very much!

    If I install the ffmpeg-sattic binary, must I rename it to ffmpeg?

    I appreciate your response, I will try and install it as soon as I get home - will this also fix the SOX issue?
    Yes you should rename ffmpeg-static to ffmpeg if the ffmpeg binary doesn't run.

    AFAIK sox is not used in ffmpeg.
    Ralphy

    1-Touch, 5-Classics, 3-Booms, 1-UE Radio
    Squeezebox client builds donations always appreciated.

  4. #344
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    Hi

    Please forgive a very n00b question.

    I am trying out DSD on LMS 7.9 and SB Touch with an external DacMagic DAC (quite elderly and pre-DSD).

    I am able to get my DSF files playing without a problem (EDO, USB) but I don't understand what is happening 'under the covers'. The state of the 'Enable DSD-over PCM' option makes no difference to the sound output and the DAC shows 44.1 sample rate at all times. Is this correct? Will a great deal of resolution not be lost at this low sample rate?

    If you can aid my understanding or point me to a learning resource, I would be very grateful.

    TIA

  5. #345
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    Can you try to play via SPDIF/coax to the DAC and see if it's different - try to eliminate the USB as the potential issue?

    On my Touch playing into the coax digitial port of a Rotel RA-11 I see 88.2k on the display when playing plain old DSD files.

  6. #346
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    Quote Originally Posted by Peter Galbavy View Post
    Can you try to play via SPDIF/coax to the DAC and see if it's different - try to eliminate the USB as the potential issue?

    On my Touch playing into the coax digitial port of a Rotel RA-11 I see 88.2k on the display when playing plain old DSD files.
    I will try this. I had formed an obviously wrong view that playing DSD was dependent on using USB connection. I'll post results.

    Thanks.

  7. #347
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    Quote Originally Posted by pieronip View Post
    I will try this. I had formed an obviously wrong view that playing DSD was dependent on using USB connection. I'll post results.

    Thanks.
    DSD 'native' wont play via SPDIF. I don't think DSD over PCM is supported on most DSD DACs via the SPDIF inputs. If they are, they are limited to 24/192 which means you can only play DSD1x even if the DAC supports DSD2x or higher.
    __________________________________________________ __________
    SB+, Klimo Merlino + Kent Gold, Monitor Audio Studio 20 Gold SE+, Klimo reference and DIS Interconnect.

  8. #348
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    Well I seem to h ave accidentally solved the issues I was having. It had been my intention to upgrade my DAC, so I purchased a SMSL M8A. When I connected it, my attempts to play DSD, both natively and via DoP, met with failure but the nature of the failure was the clue. The DAC kept switching between PCM and DSD and operating in 'bursts'. So....

    Switching from wireless to a wired connection fixed it completely. All is now working as it should.

    Thanks for a the advice and support!

  9. #349
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    Quote Originally Posted by pieronip View Post
    Well I seem to h ave accidentally solved the issues I was having. It had been my intention to upgrade my DAC, so I purchased a SMSL M8A. When I connected it, my attempts to play DSD, both natively and via DoP, met with failure but the nature of the failure was the clue. The DAC kept switching between PCM and DSD and operating in 'bursts'. So....

    Switching from wireless to a wired connection fixed it completely. All is now working as it should.

    Thanks for a the advice and support!
    From the secification ofyur DAC:

    DAC:ES9028Q2M DAC chip
    Input: USB/Optical/Coaxial
    ...
    USB: DSD: 2.8224/5.6448/11.2896/22.5792 MHz
    USB: PCM: 44.1/48/88.2/96/176.4/192/352.8/384/705.6/768 KHz
    Optical/Coaxial Sampling Rate: 44.1/48/88.2/96/176.4/192 kHz
    ...

    What you mean with: " All is now working as it should"?
    __________________________________________________ __________
    SB+, Klimo Merlino + Kent Gold, Monitor Audio Studio 20 Gold SE+, Klimo reference and DIS Interconnect.

  10. #350
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    Quote Originally Posted by marcoc1712 View Post
    From the secification ofyur DAC:

    DAC:ES9028Q2M DAC chip
    Input: USB/Optical/Coaxial
    ...
    USB: DSD: 2.8224/5.6448/11.2896/22.5792 MHz
    USB: PCM: 44.1/48/88.2/96/176.4/192/352.8/384/705.6/768 KHz
    Optical/Coaxial Sampling Rate: 44.1/48/88.2/96/176.4/192 kHz
    ...

    What you mean with: " All is now working as it should"?
    I mean that, over USB, PCM operates up to 192 KHz (Squeezebox maximum) and DSD is detected correctly by the DAC and plays as native DSD. Sounds nice too!

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