wtfplay project - Linux based PC playback system

[tsyo]

but then why does wtfplay not read any files with the cranborne 500r8?

Cranborne Audio Ltd 500R8 at usb-0000:00:14.0-2, high speed : USB Audio

Playback:
Status: Stop
Interface 1
Altset 1
Format: S32_LE
Channels: 30
Endpoint: 0x01 (1 OUT) (ASYNC)
Rates: 44100, 48000, 88200, 96000, 176400, 192000
Data packet interval: 125 us
Bits: 24
Sync Endpoint: 0x81 (1 IN)
Sync EP Interface: 2
Sync EP Altset: 1
Implicit Feedback Mode: Yes
Interface 1
Altset 2
Format: S32_LE
Channels: 18
Endpoint: 0x01 (1 OUT) (ASYNC)
Rates: 44100, 48000, 88200, 96000, 176400, 192000
Data packet interval: 125 us
Bits: 24
Sync Endpoint: 0x81 (1 IN)
Sync EP Interface: 2
Sync EP Altset: 2
Implicit Feedback Mode: Yes
Interface 1
Altset 3
Format: S32_LE
Channels: 10
Endpoint: 0x01 (1 OUT) (ASYNC)
Rates: 44100, 48000, 88200, 96000, 176400, 192000
Data packet interval: 125 us
Bits: 24
Channel map: FL FR FC LFE RL RR FLC FRC RC SL
Sync Endpoint: 0x81 (1 IN)
Sync EP Interface: 2
Sync EP Altset: 3
Implicit Feedback Mode: Yes

Capture:
Status: Stop
Interface 2
Altset 1
Format: S32_LE
Channels: 28
Endpoint: 0x81 (1 IN) (ASYNC)
Rates: 44100, 48000, 88200, 96000, 176400, 192000
Data packet interval: 125 us
Bits: 24
Interface 2
Altset 2
Format: S32_LE
Channels: 18
Endpoint: 0x81 (1 IN) (ASYNC)
Rates: 44100, 48000, 88200, 96000, 176400, 192000
Data packet interval: 125 us
Bits: 24
Interface 2
Altset 3
Format: S32_LE
Channels: 10
Endpoint: 0x81 (1 IN) (ASYNC)
Rates: 44100, 48000, 88200, 96000, 176400, 192000
Data packet interval: 125 us
Bits: 24
Channel map: FL FR FC LFE RL RR FLC FRC RC SL

 

[frd__]

I am guessing it's because of the number of channels supported by the audio interface. Your listing shows: 30, 18 and 10. wtfplay supports 2.

 

[phofman]

The plug plugin should fix that.

 

[tsyo]

The plug plugin should fix that.

which plug in ? and how to proceed ?

 

[frd__]

The plug plugin will not work. The number of channels is really hardcoded to 2. I am sorry about that

 

[tsyo]

I understand, thank you for your help

I'll just have to find myself a new DAC.

 

[phofman]

The plug plugin will not work. The number of channels is really hardcoded to 2. I am sorry about that

IMO the plug plugin will auto-provide the necessary route plugin feature. Or just the route plugin, if no resampling were desired.

I just tested:

aplay -v  -D plug:ch8 -c 2 -r 48000 /dev/zero
Plug PCM: Route conversion PCM (sformat=S16_LE)
  Transformation table:
    0 <- 0
    1 <- 1
    2 <- none
    3 <- none
    4 <- none
    5 <- none
    6 <- none
    7 <- none
Its setup is:
  stream       : PLAYBACK
  access       : RW_INTERLEAVED
  format       : U8
  subformat    : STD
  channels     : 2
  rate         : 48000
  exact rate   : 48000 (48000/1)
  msbits       : 8
  buffer_size  : 4096
  period_size  : 1024
  period_time  : 21333
  tstamp_mode  : NONE
  tstamp_type  : MONOTONIC
  period_step  : 1
  avail_min    : 1024
  period_event : 0
  start_threshold  : 4096
  stop_threshold   : 4096
  silence_threshold: 0
  silence_size : 0
  boundary     : 4611686018427387904
Slave: Hardware PCM card 0 'HDA Intel PCH' device 3 subdevice 0
Its setup is:
  stream       : PLAYBACK
  access       : MMAP_INTERLEAVED
  format       : S16_LE
  subformat    : STD
  channels     : 8
  rate         : 48000
  exact rate   : 48000 (48000/1)
  msbits       : 16
  buffer_size  : 4096
  period_size  : 1024
  period_time  : 21333
  tstamp_mode  : NONE
  tstamp_type  : MONOTONIC
  period_step  : 1
  avail_min    : 1024
  period_event : 0
  start_threshold  : 4096
  stop_threshold   : 4096
  silence_threshold: 0
  silence_size : 0
  boundary     : 4611686018427387904
  appl_ptr     : 0
  hw_ptr       : 0

 

[frd__]

@phofman: You are correct. Alsa plugin is the right tool for the job, but in this case it's no use. Simply put - it is not there.

 

[Henkie01]

I want to build a dedicated wtfplay player with an Asrock n100dc-itx motherboard, but wtfplay won't boot.
Is this motherboard (cpu?) not compatible with wtfplay?

 

[frd__]

@Henkie01: Depends. What is the last thing that you see on the screen when you are trying to boot wtfplay-live? Also, which image do you use? core2?

 

[Henkie01]

Hi @frd__ , after the "kernel choice menu" the screen stayed black or with the message "booting to...".
But it seems to work now. Still don't understand completely, but I guess it has something to do with uefi/legacy boot.
I use the corei7-avx version.
Thanks for your response.

 

[frd__]

@Henkie01: It good to hear that you have it sorted out

 

[Andrews9535]

Hi there. I’m trying out a Playback Designs Dac and rebooted the wtf software and hit snd but it said, “no sound cards detected.” Am I doing something wrong or is the software not compatible with this particular dac? Would appreciate any help. Thanks.

 

[Andrews9535]

Disregard my prior comment. I have a Matrix Audio Element H sound card in my server and apparently its external power supply was conflicting with the DACs own power supply so my server couldn’t find the dac through that usb output.