from my previous installation when I used the usb Ugreen soundcard.
But what next now? When I do alsamixer -m I am lost with all the settings. I read this forum and I see people talking about loading scripts, what are they? How do I load them?
My goal is to use this card ULTRA++ with the mic plugged in and continuously record the sound so to broadcast it though Darkice+Icecast.
Can you help me to have this card recognized as my audio input in my Pi zero?
Is it the correct way to record stereo audio? How can I record with an external lavalier microphone? And I don’t understand all the scripts, how to use them, what are they for?
What is the push button for?
Thank you to help as I don’t know a lot about this…
There are many controls with the ULTRA and it could be confusing at first. So we have made some ALSA script so you can autoconfigure it to for example preset_external_jack_microphone_input2
to enable the microphone input see here for tutorial
When I do alsactl --file preset_external_jack_microphone_input2 restore 0
I receive:
No state is present for card vc4hdmi
alsa-lib main.c:1014:(snd_use_case_mgr_open) error: failed to import hw:0 use case configuration -2
Found hardware: "vc4-hdmi" "" "" "" ""
Hardware is initialized using a generic method
No state is present for card vc4hdmi
However in /usr/share/alsa/alsa.conf I added:
defaults.ctl.card 1
defaults.pcm.card 1
as card 1 is seeed2micvoicec
and in /etc/asound.conf I added:
pcm.!default {
type hw
card 1
}
ctl.!default {
type hw
card 1
}
It selected the right soundcard, but I still have an error message, same kind of message:
$ alsactl --file preset_external_jack_microphone_input2 restore 1
No state is present for card seeed2micvoicec
alsa-lib main.c:1014:(snd_use_case_mgr_open) error: failed to import hw:1 use case configuration -2
Found hardware: “simple-card” “” “” “” “”
Hardware is initialized using a generic method
No state is present for card seeed2micvoicec
I am using an external Boya lavalier microphone trrs, is it ok? I know this mic is working as I can use it on my smartphone…
To be sure I used a new sd card with a fresh install of the latest Bullseye and re-install with the full method 2.
I can record with internal microphones and play back but still can’t with the external microphone;
$ alsactl --file preset_external_jack_microphone_input2 restore 1
No state is present for card seeed2micvoicec
alsa-lib main.c:1014:(snd_use_case_mgr_open) error: failed to import hw:1 use case configuration -2
Found hardware: “simple-card” “” “” “” “”
Hardware is initialized using a generic method
No state is present for card seeed2micvoicec
Hi
-The jack should be TRS, but maybe TTRS it works at least in mono
-No your board is not faulty, this is a matter of applying the right configuration. Another option could be to edit the file preset_external_jack_microphone_input2 and apply by hand the alsa controls
I just tried with a trs microphone and have the same error message.
Yes, please, what do I have to edit in the preset file?
I will also try the hat on a Pi 3 and a fresh Bulleseye install in the following days when I have free time to see if it works there, but I would prefer to use my Pi zero for my little project (broadcasting audio with Darkice+Icecast installed on my Pi zero).
ok so have you tried in alsamixer to manually set control input 2 (external mic) to 100%?
“Right Input Boost Mixer Rinput 2” to 100%
“Left Input Boost Mixer Linput 2” to 100%
then in F4 capture device : you could adjust the microphone bias gain using “ADC PCM”
it is working here, the thing is alsamixer is messy and you would expect Left and Right input 2 to be next to each others but it is not. Put all input 1 and 3 controls to 0 if you want to only have the exernal microphone.
So I just followed what you said. It still doesn’t work.
“Left Input Boost Mixer Linput 2” to 100%
“Right Input Boost Mixer Rinput 2” to 100%
then in F4 capture device : you could adjust the microphone bias gain using “ADC PCM”
Then I did:
arecord -D hw:1,0 -f S32_LE -r 16000 -c 2 test.wav
aplay -D hw:1,0 test.wav
But no sound.
The two commands above work well when using the built in microphones. I also tried with two working lavallier microphones, one trs, one ttrs.
However I noticed this in alsamixer:
Thank you.
If I do alsactl --file preset_external_jack_microphone_input2 restore 1
I still have:
No state is present for card seeed2micvoicec
alsa-lib main.c:1014:(snd_use_case_mgr_open) error: failed to import hw:1 use case configuration -2
Found hardware: “simple-card” “” “” “” “”
Hardware is initialized using a generic method
No state is present for card seeed2micvoicec
Just to be sure try to use the same test condition than mine :
-I’m using the git installation indicated in the our tutorial “ultra2” the seeeds studion one does not seem to work.
-I record with Audacity it is nice as I can monitor levels while recording and when adjusting gain
-I use the most simple microphone trs jack found in a dollar store
-I use last RPI OS 32 bit desktop version
-On the desktop I’m choosing on the top right corner right click on the speaker “seed-2mic…”
Certainly because of the excitment of receiving the card and wanting to try it…
I had to access my Pi zero remotely via VNC because I always run my Pis headless, install Audacity and followed your procedure.
But now it works. One last thing, it seems I can’t completely mute the built in 2 microphones although I set db gain for LINPUT1 & RINPUT1 to 0 in alsamixer… If I unplug the trs mic I can still record sounds… How can I completely disable the built in microphones when I use the trs mic?
I can see the same thing here, I can’t diasable totally the onboard mics, this is a driver issue because it was working with an outdated version of the drivers that is not anymore compatible with the current RPI OS. THe resolution could be to fork the seeed branch and fix the bug for input 2 that I beleve they do not use on their hardware.
