Monday, June 5, 2017

Configuring my SA9227 with PCM5102A 32BIT / 384KHZ USB3 Hifi Audio DAC on Linux

Configuring my SA9227 with PCM5102A 32BIT / 384KHZ USB3 Hifi Audio DAC on Linux


SA9227 with PCM5102A 32BIT / 384KHZ USB3 Hifi Audio DAC 
I was looking for a high end Audio DAC for Linux and found this unit. I wanted to generate IQ moderation for a transmitter and this module would work nicely. It Unfortunately it only works on USB3 so this one cant be used on raspberry Pi 3 :-( but works fine on my Ubuntu laptop.


Description

  • Input :5 V (USB supply),
  • THD+N: <0.005% (RL = 10 kω)
  • independence: >95 dB
  • DRC: >95 dB
  • USB sample rate:16-32BIT/32-284KHZ
I first tried it on a USB 2 port but got this error when connecting the Device to the usb2 port

/var/log$ tail -f syslog
Jun  5 21:32:03 anton-SATELLITE-P755 kernel: [101544.064132] usb 2-1.2: device descriptor read/64, error -32
Jun  5 21:32:03 anton-SATELLITE-P755 kernel: [101544.240155] usb 2-1.2: new full-speed USB device number 21 using ehci-pci
Jun  5 21:32:03 anton-SATELLITE-P755 kernel: [101544.312119] usb 2-1.2: device descriptor read/64, error -32
Jun  5 21:32:03 anton-SATELLITE-P755 kernel: [101544.488089] usb 2-1.2: device descriptor read/64, error -32
Jun  5 21:32:04 anton-SATELLITE-P755 kernel: [101544.664066] usb 2-1.2: new full-speed USB device number 22 using ehci-pci
Jun  5 21:32:04 anton-SATELLITE-P755 kernel: [101545.072135] usb 2-1.2: device not accepting address 22, error -32
Jun  5 21:32:04 anton-SATELLITE-P755 kernel: [101545.144111] usb 2-1.2: new full-speed USB device number 23 using ehci-pci
Jun  5 21:32:05 anton-SATELLITE-P755 kernel: [101545.552096] usb 2-1.2: device not accepting address 23, error -32
Jun  5 21:32:05 anton-SATELLITE-P755 kernel: [101545.552269] usb 2-1-port2: unable to enumerate USB device
Jun  5 21:32:05 anton-SATELLITE-P755 gnome-session[2394]: (gnome-software:2545): Gs-WARNING **: failed to call gs_plugin_refine on appstream: Error opening file: Permission denied


I then tried it on a usb 3 port  and got the following log.

Jun  5 21:49:55 anton-SATELLITE-P755 kernel: [102616.072168] usb 3-1: new full-speed USB device number 2 using xhci_hcd
Jun  5 21:49:55 anton-SATELLITE-P755 kernel: [102616.192175] usb 3-1: device descriptor read/64, error -71
Jun  5 21:49:55 anton-SATELLITE-P755 kernel: [102616.416205] usb 3-1: device descriptor read/64, error -71
Jun  5 21:49:56 anton-SATELLITE-P755 kernel: [102616.632092] usb 3-1: new full-speed USB device number 3 using xhci_hcd
Jun  5 21:49:56 anton-SATELLITE-P755 kernel: [102616.752241] usb 3-1: device descriptor read/64, error -71
Jun  5 21:49:56 anton-SATELLITE-P755 kernel: [102616.976267] usb 3-1: device descriptor read/64, error -71
Jun  5 21:49:56 anton-SATELLITE-P755 kernel: [102617.192119] usb 3-1: new full-speed USB device number 4 using xhci_hcd
Jun  5 21:49:56 anton-SATELLITE-P755 kernel: [102617.192513] usb 3-1: Device not responding to setup address.
Jun  5 21:49:56 anton-SATELLITE-P755 kernel: [102617.396397] usb 3-1: Device not responding to setup address.
Jun  5 21:49:57 anton-SATELLITE-P755 kernel: [102617.600038] usb 3-1: device not accepting address 4, error -71
Jun  5 21:49:57 anton-SATELLITE-P755 kernel: [102617.712114] usb 3-1: new high-speed USB device number 5 using xhci_hcd
Jun  5 21:49:57 anton-SATELLITE-P755 kernel: [102617.733859] usb 3-1: New USB device found, idVendor=262a, idProduct=9227
Jun  5 21:49:57 anton-SATELLITE-P755 kernel: [102617.733864] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Jun  5 21:49:57 anton-SATELLITE-P755 kernel: [102617.733867] usb 3-1: Product: HD USB Audio
Jun  5 21:49:57 anton-SATELLITE-P755 kernel: [102617.733869] usb 3-1: Manufacturer: XENRAN Audio
Jun  5 21:49:57 anton-SATELLITE-P755 kernel: [102617.737019] input: XENRAN Audio HD USB Audio as /devices/pci0000:00/0000:00:1c.5/0000:05:00.0/usb3/3-1/3-1:1.0/0003:262A:9227.0002/input/input16
Jun  5 21:49:57 anton-SATELLITE-P755 kernel: [102617.737332] hid-generic 0003:262A:9227.0002: input,hidraw0: USB HID v1.00 Device [XENRAN Audio HD USB Audio] on usb-0000:05:00.0-1/input0
Jun  5 21:49:57 anton-SATELLITE-P755 mtp-probe: checking bus 3, device 5: "/sys/devices/pci0000:00/0000:00:1c.5/0000:05:00.0/usb3/3-1"
Jun  5 21:49:57 anton-SATELLITE-P755 mtp-probe: bus: 3, device: 5 was not an MTP device
Jun  5 21:49:57 anton-SATELLITE-P755 systemd-udevd[19211]: Process '/usr/sbin/alsactl -E HOME=/run/alsa restore 1' failed with exit code 99.
Jun  5 21:50:01 anton-SATELLITE-P755 gnome-session[2394]: (gnome-software:2545): Gs-WARNING **: failed to call gs_plugin_refine on appstream: Error opening file: Permission denied


This looked promising

I then checked if Alsa would see the device

sudo aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: Audio [HD USB Audio], device 0: USB Audio [USB Audio]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 1: Audio [HD USB Audio], device 1: USB Audio [USB Audio #1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

and the yellow was added as a new device to be used.

I could now use the normal Alsa audio controls with this device.