[Voyage-linux] No sound HiFace 2

Thu Nov 22 23:48:20 HKT 2012

The device enumerates fine. Did the file play with aplay? ALSA finds it and
formats the data as appropriate. 

I may not have formatted the proc query correctly. Try this while playing
cat /proc/asound/card0/stream0

You should get something like this:

cygnus:~# cat /proc/asound/card1/stream0

www.obdev.at DG8SAQ-I2C at usb-0000:00:0f.5-2, high speed : USB Audio  

Playback:

  Status: Running

    Interface = 2

    Altset = 1

    Packet Size = 392

    Momentary freq = 88223 Hz (0xb.0720)

    Feedback Format = 7.17

    Packet Size = 0

    Momentary freq = 88200 Hz (0xb.0666)

  Interface 2

    Altset 1

    Format: S32_LE

    Channels: 2

    Endpoint: 2 OUT (ASYNC)

    Rates: 44100, 88200, 132300, 176400, 48000, 96000, 144000, 192000

    Data packet interval: 250 us

Here would be my next step based on what I see for mpd.conf:

#

audio_output {

type "alsa"

name "HiFace 2"  #more descriptive name reduces confusion later

device "plughw:0,0"  #plughw uses ALSA to reformat the data to match the
audio sink

#format "44100:16:2" optional

# mixer_device "default" optional

# mixer_control "PCM" optional

# mixer_index "0" optional

#dsd_usb "yes"   #turn this on after everything works. And its only useful
if your DAC can decode DoP 1.0

}

#

To get rid of the mixer error change this to disabled-

# Volume control mixer
########################################################

#

# These are the global volume control settings. By default, this setting
will

# be detected to the available audio output device, with preference going to

# hardware mixing. Hardware and software mixers for individual audio_output

# sections cannot yet be mixed.

#

# An example for controlling an ALSA, OSS or Pulseaudio mixer; If this

# setting is used other sound applications will be affected by the volume

# being controlled by MPD.

#

#mixer_type                 "hardware"

#

# An example for controlling all mixers through software. This will control

# all controls, even if the mixer is not supported by the device and will
not

# affect any other sound producing applications.

#

#mixer_type                 "software"

#

# This example will not allow MPD to touch the mixer at all and will disable

# all volume controls.

#

mixer_type                  "disabled"

#

############################################################################
###

From: Valdemar Børsting [mailto:valdemar at boersting.com] 
Sent: Thursday, November 22, 2012 12:54 AM
To: Demian Martin
Cc: voyage-linux at voyage.hk
Subject: Re: [Voyage-linux] No sound HiFace 2

Hello Demian,

Thanks for responding. Find below the output.

- Valdemar

  _____  

> Here are a few things to check:
>
> 1)      Lsusb -v | grep Hiface       lets see what it says it is

Ok, I replaced "Hiface" with "M2Tech"

root at voyage:/# lsusb -v | grep M2Tech
  iManufacturer           1 M2Tech
  iProduct                2 M2Tech USB Audio 2.0
      iInterface              2 M2Tech USB Audio 2.0
        iClockSource            9 M2Tech Internal Clock
        iClockSelector          8 M2Tech Clock Selector
        iTerminal               6 M2Tech Audio 2.0 Output
      iInterface              4 M2Tech USB 2.0 Audio Out
      iInterface              4 M2Tech USB 2.0 Audio Out
      iInterface             12 M2Tech DFU
      iInterface              2 M2Tech USB Audio 2.0
        iClockSource            9 M2Tech Internal Clock
        iClockSelector          8 M2Tech Clock Selector
        iTerminal               6 M2Tech Audio 2.0 Output
      iInterface              4 M2Tech USB 2.0 Audio Out
      iInterface              4 M2Tech USB 2.0 Audio Out
      iInterface             12 M2Tech DFU

> 2)      Cat /proc/asound/card0/status    lets see what the device status
is.

No file called "status"

root at voyage:/# cat /proc/asound/card0/status
cat: /proc/asound/card0/status: No such file or directory
>
> 3)      Then try to play a file to the device:
>
> a.       Aplay –v –Dplughw:0,0  /path/to/a/wave/file     this will tell
you want the system is trying to do.
root at voyage:/# aplay -v -Dplughw:0,0 /mnt/music/flac/DCS/JungleBoldie.wav
Playing WAVE '/mnt/music/flac/DCS/JungleBoldie.wav' : Signed 24 bit Little
Endian in 3bytes, Rate 192000 Hz, Stereo
Plug PCM: Linear conversion PCM (S32_LE)
Its setup is:
  stream       : PLAYBACK
  access       : RW_INTERLEAVED
  format       : S24_3LE
  subformat    : STD
  channels     : 2
  rate         : 192000
  exact rate   : 192000 (192000/1)
  msbits       : 24
  buffer_size  : 96000
  period_size  : 24000
  period_time  : 125000
  tstamp_mode  : NONE
  period_step  : 1
  avail_min    : 24000
  period_event : 0
  start_threshold  : 96000
  stop_threshold   : 96000
  silence_threshold: 0
  silence_size : 0
  boundary     : 1572864000
Slave: Hardware PCM card 0 'M2Tech USB Audio 2.0' device 0 subdevice 0
Its setup is:
  stream       : PLAYBACK
  access       : MMAP_INTERLEAVED
  format       : S32_LE
  subformat    : STD
  channels     : 2
  rate         : 192000
  exact rate   : 192000 (192000/1)
  msbits       : 32
  buffer_size  : 96000
  period_size  : 24000
  period_time  : 125000
  tstamp_mode  : NONE
  period_step  : 1
  avail_min    : 24000
  period_event : 0
  start_threshold  : 96000
  stop_threshold   : 96000
  silence_threshold: 0
  silence_size : 0
  boundary     : 1572864000
  appl_ptr     : 0
  hw_ptr       : 0

On 2012-11-22 06:21, Demian Martin wrote: 

Here are a few things to check:

1)      Lsusb -v | grep Hiface       lets see what it says it is

2)      Cat /proc/asound/card0/status    lets see what the device status is.

3)      Then try to play a file to the device:

a.       Aplay –v –Dplughw:0,0  /path/to/a/wave/file     this will tell you
want the system is trying to do.

The new hiface 2 stuff is supposed to be UAC2 compatible. That doesn’t mean
that it will work . . .

Demian Martin

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