[AudioI] People Digest, Vol 14, Issue 9

Tony Henrie tthenrie at yahoo.com
Sat Mar 20 23:18:13 UTC 2021


Thanks for the response.

here is cat /proc/asound/cards:

 0 [audioinjectorpi]: audioinjector-p - audioinjector-pi-soundcard
                      audioinjector-pi-soundcard

Here is lsmod:

Module                  Size  Used by
uinput                 20480  0
fuse                  126976  3
cmac                   16384  1
rfcomm                 49152  14
bnep                   20480  2
8021q                  32768  0
garp                   16384  1 8021q
stp                    16384  1 garp
llc                    16384  2 garp,stp
hid_logitech_hidpp     40960  0
snd_soc_wm8731         20480  1
regmap_spi             16384  1 snd_soc_wm8731
spidev                 20480  0
joydev                 20480  0
v3d                    73728  3
gpu_sched              45056  1 v3d
brcmfmac              327680  0
brcmutil               20480  1 brcmfmac
snd_soc_audioinjector_pi_soundcard    16384  0
gpio_keys              20480  0
raspberrypi_ts         16384  0
sha256_generic         16384  0
raspberrypi_hwmon      16384  0
cfg80211              761856  1 brcmfmac
i2c_bcm2835            16384  0
rtl2832_sdr            24576  0
r820t                  28672  1
rtl2832                20480  1
i2c_mux                16384  1 rtl2832
regmap_i2c             16384  2 snd_soc_wm8731,rtl2832
snd_soc_bcm2835_i2s    16384  2
spi_bcm2835            20480  0
dvb_usb_rtl28xxu       28672  1
pl2303                 20480  0
dvb_usb_v2             28672  1 dvb_usb_rtl28xxu
usbserial              36864  1 pl2303
dvb_core              110592  2 dvb_usb_v2,rtl2832
vc4                   253952  3
sg                     28672  0
bcm2835_codec          36864  0
hid_logitech_dj        28672  0
v4l2_mem2mem           36864  1 bcm2835_codec
cec                    49152  1 vc4
btusb                  49152  0
btrtl                  16384  1 btusb
btintel                24576  1 btusb
btbcm                  16384  1 btusb
bluetooth             393216  43 btrtl,btintel,bnep,btbcm,rfcomm,btusb
bcm2835_v4l2           40960  0
bcm2835_isp            32768  0
videobuf2_vmalloc      16384  2 rtl2832_sdr,bcm2835_v4l2
bcm2835_mmal_vchiq     28672  3 bcm2835_isp,bcm2835_codec,bcm2835_v4l2
videobuf2_dma_contig    20480  2 bcm2835_isp,bcm2835_codec
videobuf2_memops       16384  2 videobuf2_dma_contig,videobuf2_vmalloc
videobuf2_v4l2         32768  5 bcm2835_isp,bcm2835_codec,rtl2832_sdr,bcm2835_v4l2,v4l2_mem2mem
videobuf2_common       61440  6 bcm2835_isp,bcm2835_codec,rtl2832_sdr,bcm2835_v4l2,v4l2_mem2mem,videobuf2_v4l2
videodev              249856  7 bcm2835_isp,bcm2835_codec,videobuf2_common,rtl2832_sdr,bcm2835_v4l2,v4l2_mem2mem,videobuf2_v4l2
mc                     45056  8 bcm2835_isp,bcm2835_codec,videobuf2_common,videodev,dvb_core,dvb_usb_v2,v4l2_mem2mem,videobuf2_v4l2
vc_sm_cma              32768  2 bcm2835_isp,bcm2835_mmal_vchiq
ecdh_generic           16384  2 bluetooth
ecc                    40960  1 ecdh_generic
rfkill                 32768  6 bluetooth,cfg80211
drm_kms_helper        241664  3 vc4
drm                   520192  10 v3d,vc4,gpu_sched,drm_kms_helper
rpivid_mem             16384  0
drm_panel_orientation_quirks    16384  1 drm
snd_soc_core          225280  4 snd_soc_wm8731,vc4,snd_soc_bcm2835_i2s,snd_soc_audioinjector_pi_soundcard
snd_compress           20480  1 snd_soc_core
snd_pcm_dmaengine      16384  1 snd_soc_core
snd_pcm               106496  9 snd_soc_wm8731,snd_compress,vc4,snd_pcm_dmaengine,snd_soc_bcm2835_i2s,snd_soc_core,snd_soc_audioinjector_pi_soundcard
snd_timer              32768  1 snd_pcm
snd                    77824  11 snd_soc_wm8731,snd_compress,snd_timer,snd_soc_core,snd_pcm
syscopyarea            16384  1 drm_kms_helper
sysfillrect            16384  1 drm_kms_helper
sysimgblt              16384  1 drm_kms_helper
w1_gpio                16384  0
fb_sys_fops            16384  1 drm_kms_helper
wire                   36864  1 w1_gpio
rpi_backlight          16384  0
backlight              20480  2 rpi_backlight,drm
nvmem_rmem             16384  0
cn                     16384  1 wire
uio_pdrv_genirq        16384  0
uio                    20480  1 uio_pdrv_genirq
i2c_dev                20480  0
ip_tables              28672  0
x_tables               32768  1 ip_tables
ipv6                  495616  46
pi at rpi4b1:~ $ 

here is /boot/config.txt:

cat /boot/config.txt
# For more options and information see
# http://rpf.io/configtxt
# Some settings may impact device functionality. See link above for details

# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1

# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
#disable_overscan=1

# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16

# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720

# uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1

# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1

# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2

# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4

# uncomment for composite PAL
#sdtv_mode=2

#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800

# Uncomment some or all of these to enable the optional hardware interfaces
dtparam=i2c_arm=on
#dtparam=i2s=on
dtparam=spi=on

# Uncomment this to enable the lirc-rpi module
#dtoverlay=lirc-rpi

# Additional overlays and parameters are documented /boot/overlays/README

# Enable audio (loads snd_bcm2835)
dtparam=audio=off
dtoverlay=disable-bt
disable_splash=1
dtoverlay=vc4-fkms-v3d

[pi3]
gpu_mem=256
max_framebuffers=1

[pi3+]
gpu_mem=256
max_framebuffers=1

[pi4]
max_framebuffers=2
start_x=1
enable_uart=1
dtoverlay=w1-gpio
# enable the AudioInjector.net sound card
	dtoverlay=audioinjector-wm8731-audio

# enable safe shutdown trigger by gpio
dtoverlay=gpio-shutdown

Here’s a thought. I recently added the last line to /boot/config.txt  - code:  <  dtoverlay=gpio-shutdown  > to allow a soft shutdown of the raspberrypi4 with a trigger on pin 5 (GPIO 3) from the vehicle ignition switch. Is it possible that interferes with the AudioInjector Zero’s connection to the rpi via gpio?

I have uninstalled pulseaudio and uninstalled alsa-common (and others alsa-related) and reinstalled each alternately with no change. I uninstalled pulseaudio and made sure all the proper settings were made in alsamixer, still no sound. It does, in fact, look like the pulseaudio issue, except that without pulseaudio I still get no output.

A related issue is that OpenAuto Pro requires pulseaudio. Without it, I get no audio controls (volume in particular) in OAP. OAP made that change when Raspberrypi.org <http://raspberrypi.org/> went to pulseaudio. If the AI zero will not function with pulseaudio, I may have to find another sound card for my OAP and move my AI zero to another project.

Tony

> On Mar 20, 2021, at 6:00 AM, people-request at lists.audioinjector.net wrote:
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> Today's Topics:
> 
>   1. AudioInjector Zero no longer being recognized by raspberrypi
>      4 (Tony Henrie)
>   2. Re: AudioInjector Zero no longer being recognized by
>      raspberrypi 4 (Matt)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Fri, 19 Mar 2021 20:05:39 -0600
> From: Tony Henrie <tthenrie at yahoo.com>
> To: people at lists.audioinjector.net
> Subject: [AudioI] AudioInjector Zero no longer being recognized by
> 	raspberrypi 4
> Message-ID: <6C027A10-7DEF-468B-9E43-304DF546D004 at yahoo.com>
> Content-Type: text/plain; charset="utf-8"
> 
> I just read another very recent thread (02/21/21?) that appears to have the same issue I have. 
> 
> I have a AI zero installed on a raspberrypi4B with OpenAuto Pro installed on Raspbian. I recently re-installed the latest OAP version, starting from scratch, and updated everything, did the AudioInjector shell install and everything was working fine. I just did another update of raspbian - sudo apt update and sudo apt full-upgrade, this evening (03/19/21) and suddenly my soundcard is no longer showing up. Your response to the other email indicated an issue with Pulseaudio. I don?t believe this is the issue (but I may be wrong) because it was working just fine a few days ago (Raspberrypi.org <http://raspberrypi.org/> went to pulseaudio by default some time ago). Now, after the recent update my card doesn?t show up. It is installed correctly. I re-ran the setup script this evening when I discovered my AIZ wasn?t outputting. I can see that my iphone is connected via bluetooth to the rpi and that it is registering sound input, but there is ?no output device?.
> 
> I am familiar with linux, but not adept. where should I start to debug? Alsamixer indicates "there are no controls for this device? and no sound device shows under ?F6?. 
> 
> Tony Henrie
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> ------------------------------
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> Message: 2
> Date: Sat, 20 Mar 2021 13:24:44 +1100
> From: Matt <matt at audioinjector.net>
> To: people at lists.audioinjector.net
> Subject: Re: [AudioI] AudioInjector Zero no longer being recognized by
> 	raspberrypi 4
> Message-ID: <2f554ab1-d348-402c-b940-4b307abf5e14 at audioinjector.net>
> Content-Type: text/plain; charset="utf-8"; Format="flowed"
> 
> Hi Tony,
> 
> This certainly sounds like the pulseaudio problem. What does the 
> following command output ?
> 
> cat /proc/asound/cards
> 
> Matt
> 
> On 20/3/21 1:05 pm, Tony Henrie via People wrote:
>> I just read another very recent thread (02/21/21?) that appears to 
>> have the same issue I have.
>> 
>> I have a AI zero installed on a raspberrypi4B with OpenAuto Pro 
>> installed on Raspbian. I recently re-installed the latest OAP version, 
>> starting from scratch, and updated everything, did the AudioInjector 
>> shell install and everything was working fine. I just did another 
>> update of raspbian - *sudo apt update*?and *sudo apt full-upgrade, 
>> *this evening (03/19/21)?and suddenly my soundcard is no longer 
>> showing up. Your response to the other email indicated an issue with 
>> Pulseaudio. I don?t believe this is the issue (but I may be wrong) 
>> because it was working just fine a few days ago (Raspberrypi.org 
>> <http://Raspberrypi.org>?went to pulseaudio by default some time ago). 
>> Now, after the recent update my card doesn?t show up. It is installed 
>> correctly. I re-ran the setup script this evening when I discovered my 
>> AIZ wasn?t outputting. I can see that my iphone is connected via 
>> bluetooth to the rpi and that it is registering sound input, but there 
>> is ?no output device?.
>> 
>> I am familiar with linux, but not adept. where should I start to 
>> debug? Alsamixer indicates "there are no controls for this device? and 
>> no sound device shows under ?F6?.
>> 
>> Tony Henrie
>> 
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