Genio 520 - Audio playback over I2S using Pipewire?

Yocto
1

Hi,

I have an external audio device connected to I2S0 interfaces on the Genio 520.

With the command:

aplay -D i2s_out0 /usr/share/sounds/alsa/Front_Center.wav

I am able to hear audio playback on my attached speaker.

However, when I use pipewire:

pw-play --target 53 /usr/share/sounds/alsa/Front_Center.wav

I do not hear any audio playback. Why is this? Can someone help?

For reference, below are my audio sources/sinks:

root@wearable-dvt-720-f4afaa:~# wpctl status
PipeWire 'pipewire-0' [1.0.9, root@wearable-dvt-720-f4afaa, cookie:2151247062]
 └─ Clients:
        33. WirePlumber                         [1.0.9, root@wearable-dvt-720-f4afaa, pid:2159]
        34. pw-loopback                         [1.0.9, root@wearable-dvt-720-f4afaa, pid:2161]
        35. pipewire                            [1.0.9, root@wearable-dvt-720-f4afaa, pid:2158]
        45. WirePlumber [export]                [1.0.9, root@wearable-dvt-720-f4afaa, pid:2159]
        48. pw-loopback                         [1.0.9, root@wearable-dvt-720-f4afaa, pid:2197]
        85. pw-loopback                         [1.0.9, root@wearable-dvt-720-f4afaa, pid:2278]
        88. wpctl                               [1.0.9, root@wearable-dvt-720-f4afaa, pid:33659]

Audio
 ├─ Devices:
 │      52. Built-in Audio                      [alsa]
 │  
 ├─ Sinks:
 │      53. Built-in Audio I2S output           [vol: 1.00]
 │      54. Built-in Audio PCM output           [vol: 0.40]
 │  *   55. Built-in Audio Earphone speaker + Lineout speaker [vol: 0.40]
 │  
 ├─ Sources:
 │      56. Built-in Audio I2S input            [vol: 1.00]
 │      57. Built-in Audio PCM input            [vol: 1.00]
 │  *   58. Built-in Audio Digital microphone   [vol: 1.00]
 │      59. Built-in Audio Analog microphone + Earphone microphone [vol: 1.00]
 │  
 ├─ Filters:
 │    - loopback-2161-18                                            
 │      36. output.agent_in                                              [Audio/Source]
 │      37. input.agent_in                                               [Stream/Input/Audio]
 │    - loopback-2197-18                                            
 │      49. output.recording_in                                          [Audio/Source]
 │      50. input.recording_in                                           [Stream/Input/Audio]
 │    - loopback-2278-18                                            
 │      86. output.agent_out                                             [Stream/Output/Audio]
 │      87. input.agent_out                                              [Audio/Sink]
 │  
 └─ Streams:

Video
 ├─ Devices:
 │  
 ├─ Sinks:
 │  
 ├─ Sources:
 │  
 ├─ Filters:
 │  
 └─ Streams:

Settings
 └─ Default Configured Devices:
2

Nevermind, I figured it out. Thanks!