[AudioI] Volumio 3.179 + Audioinjector Stereo?

[Randall Reichenbach]

Right.  "Output Mixer HiFi" is either on or muted.  I believe "Master"
controls the AI card headphone level though.   Kindof a bummer there's not
digital volume control of the line outs.  For my systems, I add a dual
volume pot to control them.

On Fri, Jan 7, 2022 at 4:58 PM Daniel F. Taylor <df7aylor at gmail.com> wrote:

> ... But oddly, volume control on web interface doesn't work... Hmmmn...
>
> On Fri, Jan 7, 2022, 17:38 Daniel F. Taylor <df7aylor at gmail.com> wrote:
>
>> Variation on that advice worked!
>>
>> Rebooted again without the dtparam=audio=on and audio_pwm_mode=2
>> commented out.
>> I get headphones (c 1), hdmi (c 0), and audioinjector-pi-soundcard (c 2)
>> as choices in playback options on the web interface. Headphones works.
>> Haven't tried HDMI.
>>
>> Started alsamixer with c 2 parameter,  Unmuted Master Playback ZC and
>> Output Mixer HiFi. At first I didn't think it worked but it had just paused
>> playback. Got music coming out of the audioinjector finally!
>>
>> Thanks!
>>
>> On Fri, Jan 7, 2022 at 3:38 PM Randall Reichenbach <randaji at gmail.com>
>> wrote:
>>
>>> Instead of amixer, try:
>>>
>>> alsamixer -c 0
>>>
>>> which will give you a graphical interface where you can unmute the
>>> output mixer hifi.
>>>
>>> On Fri, Jan 7, 2022 at 1:10 PM Daniel F. Taylor via People <
>>> people at lists.audioinjector.net> wrote:
>>>
>>>>
>>>> Running Volumio 3.179 on an older Pi (2 I think? Maybe 3?) with
>>>> Audioinjector Stereo sitting on top... is there a way to make it use the
>>>> audioinjector stereo card? Volumio itself works but I can't get the method
>>>> described here
>>>> http://forum.audioinjector.net/viewtopic.php@f=5&t=3063.html to send
>>>> sound through the card...
>>>>
>>>> I have editing /etc/config.text to read
>>>>
>>>> volumio at volumio:~$ cat /boot/config.txt
>>>> initramfs volumio.initrd
>>>> gpu_mem=32
>>>> max_usb_current=1
>>>> #dtparam=audio=on
>>>> #audio_pwm_mode=2
>>>> dtparam=i2c_arm=on
>>>> disable_splash=1
>>>> hdmi_force_hotplug=1
>>>> force_eeprom_read=0
>>>> dtoverlay=audioinjector-wm8731-audio
>>>> include userconfig.txt
>>>>
>>>> I get this after reboot:
>>>> volumio at volumio:~$ aplay -l
>>>> **** List of PLAYBACK Hardware Devices ****
>>>> card 0: audioinjectorpi [audioinjector-pi-soundcard], device 0:
>>>> AudioInjector audio wm8731-hifi-0 [AudioInjector audio wm8731-hifi-0]
>>>>   Subdevices: 1/1
>>>>   Subdevice #0: subdevice #0
>>>>
>>>> The recommended mixer command doesn't seem to work:
>>>> volumio at volumio:~$ amixer sset 'Output Mixer HiFi' toggle
>>>> amixer: Unable to find simple control 'Output Mixer HiFi',0
>>>>
>>>> I get 'audioinjector-pi-soundcard' as my only available output device
>>>> on the volumio web interface
>>>>
>>>> Prior to making these changes, I get the expected audio output from the
>>>> Pi's built in headphone jack.
>>>>
>>>> After making these changes, I get no audio output from headphone jack,
>>>> or output jacks on Audioinjector card, while volumio web interface is
>>>> showing a song playing at max volume.
>>>>
>>>> Any ideas?
>>>>
>>>> --
>>>> People mailing list
>>>> People at lists.audioinjector.net
>>>> https://lists.audioinjector.net/mailman/listinfo/people
>>>>
>>>
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