Search found 7 matches

by colinbrogan
Sun Jan 06, 2019 12:34 pm
Forum: Stereo soundcard for the Raspberry Pi
Topic: Disabling ON-Board Microphone
Replies: 1
Views: 428

Re: Disabling ON-Board Microphone

How are you setting the alsamixer settings? I run this command at startup: alsactl --file ~/asound.state.RCA.thru.test restore It has the following lines, which I believe disables microphone input control.5 { iface MIXER name 'Mic Boost Volume' value 0 comment { access 'read write' type INTEGER coun...
by colinbrogan
Sun Jan 06, 2019 12:23 pm
Forum: Stereo soundcard for the Raspberry Pi
Topic: Seperating the AI card from the RPi
Replies: 0
Views: 292

Seperating the AI card from the RPi

Hi, I've got the AI Stereo Card. Plugging in as a hat works fine. However, given the confines of the box I am installing it in, I've tried multiple times to unplug the hat and run individual jumper cables from the RPI GPIO to the bottom female GPIO of the injector card. I am basing my wiring on this...
by colinbrogan
Thu Dec 27, 2018 12:01 pm
Forum: Stereo soundcard for the Raspberry Pi
Topic: RCA analog passthrough for amp hat
Replies: 1
Views: 339

Re: RCA analog passthrough for amp hat

I have not used either of those products, nor have I used the Audio Injector to connect to a turntable. Nonetheless, you probably want to check which GPIO pins either of these products use, if they are RPi Hats, and make sure they don't conflict with the Audio Injector pins used. Below is a diagram ...
by colinbrogan
Thu Dec 27, 2018 11:52 am
Forum: Stereo soundcard for the Raspberry Pi
Topic: Using Audio Injector and Flat Max DI box for custom looper pedal
Replies: 1
Views: 365

Re: Using Audio Injector and Flat Max DI box for custom looper pedal

I desoldered the rca jacks off the Flat Max Stereo DI box. Strangely, the motherboard labels the RCA inputs and outputs like so: ________________________ | Rrca1 | | Rrca2 | | |______| |______| | | ________ ________ | | Vrca2 | | Vrca1 | | |______|___|______|____| (Top being output, and bottom being...
by colinbrogan
Tue Dec 25, 2018 9:09 pm
Forum: Stereo soundcard for the Raspberry Pi
Topic: No sound on Raspbian Stretch Lite
Replies: 1
Views: 648

Re: No sound on Raspbian Stretch Lite

My bad. I am using the audio injector with the DI box. Nothing was wrong with the card, I was just routing things incorrectly through the DI box
by colinbrogan
Fri Dec 21, 2018 2:38 pm
Forum: Stereo soundcard for the Raspberry Pi
Topic: No sound on Raspbian Stretch Lite
Replies: 1
Views: 648

No sound on Raspbian Stretch Lite

Ok, I haven't been able to hear any output or input from this since I've installed it. The bottom of /boot/config.txt looks like this: # Enable audio (loads snd_bcm2835) # dtparam=audio=on # audioinjector device tree overlay file dtoverlay=audioinjector-wm8731-audio aplay -l gives me this: card 0: a...
by colinbrogan
Sat Dec 15, 2018 10:52 am
Forum: Stereo soundcard for the Raspberry Pi
Topic: Using Audio Injector and Flat Max DI box for custom looper pedal
Replies: 1
Views: 365

Using Audio Injector and Flat Max DI box for custom looper pedal

I am in the middle of working on an EDP like looper pedal using the Audio Injector cards and DI direct box (as guitar preamp) by Max Flat, and Sooperlooper by Jesse Chappel, the progress of which is documented here: http://essej.net/slforum/viewtopic.php?f=21&t=4972&p=7192#p7192 loop_pedal_design.pn...