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  1. #1271
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    Apr 2008
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    Try to get AudioLab M-DAC+ working with RPI 4

    I would like to use an AudioLab M-DAC+ with my RPI 4 running piCorePlayer 7.0, Squeezelite v1.9.9-1386-pCP. I've tried all of the suggested output setting with no luck. Has anyone here been successful with this DAC? Any help would be appreciated.

    Thanks,

    Howard

  2. #1272
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    Staffordshire. UK
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    Quote Originally Posted by Howard Passman View Post
    I would like to use an AudioLab M-DAC+ with my RPI 4 running piCorePlayer 7.0, Squeezelite v1.9.9-1386-pCP. I've tried all of the suggested output setting with no luck. Has anyone here been successful with this DAC? Any help would be appreciated.

    Thanks,

    Howard
    You don't say which DAC input you want to use, but let's assume USB

    A quick skim through the manual reveals a usb driver download (it does not say Windows only)

    can you please post the list of outputs offered, and the result on entering

    Code:
    lsmod
    into a Terminal connection to the rpi with the dac attatched

    ronnie

  3. #1273
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    Can you try

    a) using the usb 2 sockets

    b) using a different rpi (3b+ or 3B)

    ronnie

  4. #1274
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    Apr 2008
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    Hi Ronnie. I apologize I did not get notified that anyone had answered my question.

    I am trying to use the USB input on the DAC. I have tried both inputs USB A and USB B. I also tried my RPI3.

    From what I've read in the manual the Windows Driver is the only one I see. Although on their site they list a IAG USB driver?

    I've been all over the Internet and so far anything I've found and tried yielded nothing. I would love to get this thing working. Right now I am using Squeezeplay on my Windows PC and listening through Sennheiser HD600's and it sounds great.

    Thanks for any help you can offer and again, sorry for not getting back.

    Howard

    P.S. I'll hook everything back up and give you the list and do lsmod

    Quote Originally Posted by Man in a van View Post
    Can you try

    a) using the usb 2 sockets

    b) using a different rpi (3b+ or 3B)

    ronnie

  5. #1275
    Senior Member
    Join Date
    Apr 2008
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    1,501
    Hi Ronnie. Results from lsmod

    /home/tc$ lsmod
    Module Size Used by
    fuse 114688 3
    spidev 20480 0
    snd_soc_bcm2835_i2s 16384 0
    snd_soc_core 200704 1 snd_soc_bcm2835_i2s
    snd_compress 20480 1 snd_soc_core
    snd_pcm_dmaengine 16384 1 snd_soc_core
    snd_usb_audio 217088 0
    snd_usbmidi_lib 32768 1 snd_usb_audio
    mc 40960 1 snd_usb_audio
    snd_bcm2835 28672 1
    snd_hwdep 16384 1 snd_usb_audio
    snd_rawmidi 32768 1 snd_usbmidi_lib
    snd_seq_device 16384 1 snd_rawmidi
    spi_bcm2835 24576 0
    raspberrypi_ts 16384 0
    snd_pcm 98304 6 snd_usb_audio,snd_pcm_dmaengine,snd_soc_bcm2835_i2 s,snd_bcm2835,snd_soc_core
    input_polldev 16384 1 raspberrypi_ts
    i2c_bcm2835 16384 0
    snd_timer 32768 1 snd_pcm
    snd 73728 11 snd_compress,snd_hwdep,snd_usb_audio,snd_timer,snd _rawmidi,snd_usbmidi_lib,snd_seq_device,snd_bcm283 5,snd_soc_core,snd_pcm
    rpi_backlight 16384 0
    backlight 20480 1 rpi_backlight
    squashfs 40960 34
    zram 28672 1
    zsmalloc 28672 1 zram
    raspberrypi_hwmon 16384 0


    And available output device specifications...


    default
    plugequal
    equal
    hw:CARD=Headphones,DEV=0
    plughw:CARD=Headphones,DEV=0
    sysdefault:CARD=Headphones
    hw:CARD=A20,DEV=0
    plughw:CARD=A20,DEV=0
    sysdefault:CARD=A20
    front:CARD=A20,DEV=0
    surround21:CARD=A20,DEV=0
    surround40:CARD=A20,DEV=0
    surround41:CARD=A20,DEV=0
    surround50:CARD=A20,DEV=0
    surround51:CARD=A20,DEV=0
    surround71:CARD=A20,DEV=0
    iec958:CARD=A20,DEV=0

    Thanks,

    Howard




    Quote Originally Posted by Man in a van View Post
    You don't say which DAC input you want to use, but let's assume USB

    A quick skim through the manual reveals a usb driver download (it does not say Windows only)

    can you please post the list of outputs offered, and the result on entering

    Code:
    lsmod
    into a Terminal connection to the rpi with the dac attatched

    ronnie

  6. #1276
    Senior Member
    Join Date
    Apr 2008
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    1,501
    Hi Ronnie. Well, I don't know what happened, but it's working. I'm assuming it's the third USB cable I tried.

    Thanks again for taking the time. I do appreciate it very much.

    Howard


    Quote Originally Posted by Man in a van View Post
    Can you try

    a) using the usb 2 sockets

    b) using a different rpi (3b+ or 3B)

    ronnie

  7. #1277
    Senior Member
    Join Date
    Jan 2011
    Location
    Staffordshire. UK
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    Quote Originally Posted by Howard Passman View Post
    Hi Ronnie. Well, I don't know what happened, but it's working. I'm assuming it's the third USB cable I tried.

    Thanks again for taking the time. I do appreciate it very much.

    Howard
    Good show

    ronnie

  8. #1278
    Senior Member
    Join Date
    Apr 2008
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    1,501

    Not out of the woods yet...

    Good morning Ronnie. It was very late last night when I got the DAC working. I listened to it for a while and discovered that after 2-3 minutes of play it stops playing for about 1 second, stutters back and continues playing for another few minutes then repeats that process.

    More information. I'm playing almost exclusively FLAC files on a RPI4 running over Ethernet. I'm using a 5" touch screen displaying a VU meter. I mention that because when the music stops the VU freezes exactly where it is until play resumes. Maybe that's a hint.

    Anyway, I'm wondering where and what to look for to diagnose/correct the issue. I did read about the buffers in Jivelite and experimented with some of those settings, but none of that made a difference.

    Thanks once again for any light you can shed on this.

    Howard


    Quote Originally Posted by Man in a van View Post
    Good show

    ronnie

  9. #1279
    Senior Member
    Join Date
    Jan 2010
    Location
    Hertfordshire
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    7,976
    Quote Originally Posted by Howard Passman View Post
    Good morning Ronnie. It was very late last night when I got the DAC working. I listened to it for a while and discovered that after 2-3 minutes of play it stops playing for about 1 second, stutters back and continues playing for another few minutes then repeats that process.

    More information. I'm playing almost exclusively FLAC files on a RPI4 running over Ethernet. I'm using a 5" touch screen displaying a VU meter. I mention that because when the music stops the VU freezes exactly where it is until play resumes. Maybe that's a hint.

    Anyway, I'm wondering where and what to look for to diagnose/correct the issue. I did read about the buffers in Jivelite and experimented with some of those settings, but none of that made a difference.

    Thanks once again for any light you can shed on this.

    Howard
    Which output device did you choose to get it to work?

    Sent from my Pixel 3a using Tapatalk

  10. #1280
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    Apr 2008
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    1,501
    Actually hw:CARD=A20,DEV=0 and plughw:CARD=A20,DEV=0 both worked the same.


    Quote Originally Posted by slartibartfast View Post
    Which output device did you choose to get it to work?

    Sent from my Pixel 3a using Tapatalk

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