How to setup and test

[wh7qq]

Has anyone tried to get it running with Raspbian Buster? I am beating my head against it right now and so far, have nothing but confusion.

[Victorb]

I have AudioInjector. Setup is done following your instructions step by step.
Raspberry PI3 B+.

The card is discoverable by system.

Keep having this
aplay: pcm_write:2053: write error: Input/output error

dmesg:
audioinjector-stereo soc ASoC: CODEC DAI wm8731-hifi not registered - will retry
[ 5.222891] audioinjector-stereo soc snd_soc_register_card failed (-517)
[ 5.460281] wm8731 1-001a: Assuming static MCLK
[ 5.460348] wm8731 1-001a: 1-001a supply AVDD not found, using dummy regulator
[ 5.460501] wm8731 1-001a: Linked as a consumer to regulator.0
[ 5.460518] wm8731 1-001a: 1-001a supply HPVDD not found, using dummy regulator
[ 5.460595] wm8731 1-001a: 1-001a supply DCVDD not found, using dummy regulator
[ 5.460688] wm8731 1-001a: 1-001a supply DBVDD not found, using dummy regulator
[ 5.474617] audioinjector-stereo soc wm8731-hifi <-> 3f203000.i2s mapping ok
[ 438.915976] bcm2835-i2s 3f203000.i2s: I2S SYNC error!

i2c_arm and i2s interfaces are on

Linux raspberrypi 4.19.75-v7+ #1270 SMP Tue Sep 24 18:45:11 BST 2019 armv7l GNU/Linux

Any suggestions where is the mistake on my side?

Thank you in advance,
Victor

[Pijit]

I set up and tested the board. I get the results as pictured. But, I’m not getting any sound in through the line inputs when I connect a device such as an iPad.

VLC media player indicates that the audioinjector is the default audio device. I -can- play a music file from the Pi to speakers connected to the audioinjector line outputs.

Media Player, Media, Open capture device, capture mode is set to video camera (no option for Injector), audio device name defaults to hw:0,0. Error: VLC is unable to open the MRL ‘v4l2://‘.

[jon.grady]

I ran the automatic installation and I am able to see the board and the MIC works, but I am unable to hear any output. I have red x's on all the streams in the sound settings but no streams are muted.

Here is what I'm seeing in the dmesg:
[ 4.960021] usbcore: registered new interface driver brcmfmac
[ 4.960725] audioinjector-stereo soc ASoC: CODEC DAI wm8731-hifi not registered - will retry
[ 4.960741] audioinjector-stereo soc snd_soc_register_card failed (-517)
[ 5.150439] random: crng init done
[ 5.150456] random: 7 urandom warning(s) missed due to ratelimiting
[ 5.182898] audioinjector-stereo soc ASoC: CODEC DAI wm8731-hifi not registered - will retry
[ 5.182929] audioinjector-stereo soc snd_soc_register_card failed (-517)
[ 5.187785] audioinjector-stereo soc ASoC: CODEC DAI wm8731-hifi not registered - will retry
[ 5.187816] audioinjector-stereo soc snd_soc_register_card failed (-517)
[ 5.204505] vc4-drm soc:gpu: bound 3f600000.firmwarekms (ops vc4_fkms_ops [vc4])
[ 5.223715] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1
[ 5.223877] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may have limited channels available
[ 5.224833] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM43430/1 wl0: Oct 23 2017 03:55:53 version 7.45.98.38 (r674442 CY) FWID 01-e58d219f

[kbshowle]

Hi, I've been trying hard to get the audio injector going, but I'm striking out. I've read all the replies in this forum topic and tried everything I found.

I'm on a Pi 4 with Raspbian Buster (full).
I git cloned "https://github.com/Audio-Injector/stereo-and-zero.git" and used dpkg to install "audio.injector.scripts_0.1-1_all.deb".
I ran "audioInjector-setup.sh", which updated me to kernel 4.19.81-v7l+

My config.txt includes these lines:
dtparam=i2c_arm=on
dtparam=i2s=on
dtparam=spi=on
#dtparam=audio=on
dtoverlay=audioinjector-wm8731-audio

My "aplay -l" looks like this:

i@raspberrypi:~ $ sudo aplay -l
aplay: device_list:272: no soundcards found...


My dmesg return looks like this (note it's not show any " wm8731-hifi <-> 3f203000.i2s mapping ok"):

pi@raspberrypi:~ $ dmesg | grep -i "wm8731"
[ 3.740252] audioinjector-stereo soc ASoC: CODEC DAI wm8731-hifi not registered - will retry
[ 3.982929] audioinjector-stereo soc ASoC: CODEC DAI wm8731-hifi not registered - will retry
[ 3.985107] audioinjector-stereo soc ASoC: CODEC DAI wm8731-hifi not registered - will retry
[ 4.081284] audioinjector-stereo soc ASoC: CODEC DAI wm8731-hifi not registered - will retry
[ 4.105405] audioinjector-stereo soc ASoC: CODEC DAI wm8731-hifi not registered - will retry
[ 4.142516] audioinjector-stereo soc ASoC: CODEC DAI wm8731-hifi not registered - will retry
[ 4.567431] audioinjector-stereo soc ASoC: CODEC DAI wm8731-hifi not registered - will retry
[ 4.568215] audioinjector-stereo soc ASoC: CODEC DAI wm8731-hifi not registered - will retry
[ 4.636583] wm8731 1-001a: Assuming static MCLK
[ 4.636614] wm8731 1-001a: 1-001a supply AVDD not found, using dummy regulator
[ 4.636701] wm8731 1-001a: Linked as a consumer to regulator.0
[ 4.636724] wm8731 1-001a: 1-001a supply HPVDD not found, using dummy regulator
[ 4.636822] wm8731 1-001a: 1-001a supply DCVDD not found, using dummy regulator
[ 4.636903] wm8731 1-001a: 1-001a supply DBVDD not found, using dummy regulator
[ 4.647777] wm8731 1-001a: Failed to issue reset: -121
[ 4.648284] wm8731: probe of 1-001a failed with error -121
[ 57.048513] audioinjector-stereo soc ASoC: CODEC DAI wm8731-hifi not registered - will retry

Any ideas?

[jon.grady]

I'm having the exact same issue as Victorb.

Any suggestions?

[jon.grady]

Tried to comment on here a few times but don't seem to get any response. Should I be posting elsewhere?

Here is the output of my dmesg.

[ 5.140731] audioinjector-stereo soc ASoC: CODEC DAI wm8731-hifi not registered - will retry
[ 5.140754] audioinjector-stereo soc snd_soc_register_card failed (-517)
[ 5.150521] brcmfmac: F1 signature read @0x18000000=0x1541a9a6
[ 5.162480] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1
[ 5.162757] usbcore: registered new interface driver brcmfmac
[ 5.163600] audioinjector-stereo soc ASoC: CODEC DAI wm8731-hifi not registered - will retry
[ 5.163617] audioinjector-stereo soc snd_soc_register_card failed (-517)
[ 5.186294] Console: switching to colour frame buffer device 100x30
[ 5.216313] vc4-drm soc:gpu: fb0: DRM emulated frame buffer device
[ 5.283083] audioinjector-stereo soc ASoC: CODEC DAI wm8731-hifi not registered - will retry
[ 5.283105] audioinjector-stereo soc snd_soc_register_card failed (-517)
[ 5.513626] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1
[ 5.513729] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may have limited channels available
[ 5.514920] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM43430/1 wl0: Oct 23 2017 03:55:53 version 7.45.98.38 (r674442 CY) FWID 01-e58d219f
[ 6.262438] wm8731 1-001a: Assuming static MCLK
[ 6.262472] wm8731 1-001a: 1-001a supply AVDD not found, using dummy regulator
[ 6.262590] wm8731 1-001a: Linked as a consumer to regulator.0
[ 6.262607] wm8731 1-001a: 1-001a supply HPVDD not found, using dummy regulator
[ 6.262672] wm8731 1-001a: 1-001a supply DCVDD not found, using dummy regulator
[ 6.262741] wm8731 1-001a: 1-001a supply DBVDD not found, using dummy regulator
[ 6.269066] audioinjector-stereo soc wm8731-hifi <-> 3f203000.i2s mapping ok

[jgcobra]

I have managed to get this working on an RPi 4 running Raspbian Buster. Hopefully this will help someone else.

Don't download the dpkg and run the auto setup. These steps are to get it running manually!

1) Edit /boot/config.txt

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sudo nano /boot/config.txt

2) Uncomment these lines (remove the #):

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dtparam=i2c_arm=on
dtparam=i2s=on
dtparam=spi=on

3) Comment out this line (add a # at the start):

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#dtparam=audio=on

4) Add the following line just after the one you commented out in the previous step:

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dtoverlay=audioinjector-wm8731-audio

5) Quit and save (ctrl-x, y, enter)

6) Reboot the pi:

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sudo reboot

7) Run alsa mixer:

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alsamixer

8) Scroll across to the one titled 'Output Mixer HiFi' and press 'm' to unmute it. It should now say '00' above it with a green background. Press 'esc' to save and exit.

That should be everything. You can now test that it works with:

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aplay test.wav

Note you will need your own test wav file, you can Google for one and use wget to download it directly to the Pi.

If you are running RetroPie or emulationstation then you also need to configure it to use the sound card:

1) Run emulation station:

Code: Select all

emulationstation

2) Once emulation station is loaded, go to the sound settings (Start -> Sound Settings).

3) Change 'Audio card' to 'Default', 'Audio device' to 'Master' and 'OMX player audio device' to 'ALSA:HW:0,0'

That's it!