Search found 609 matches

by flatmax
Tue May 08, 2018 7:58 pm
Forum: Stereo soundcard for the Raspberry Pi
Topic: IN and OUT
Replies: 2
Views: 1154

Re: IN and OUT

Is the problem in having two applications open the pcm device at the same time ?

Another way to do it is to use the plug:dmix device. dmix will mix many audio streams into the one output over PCM.

Matt
by flatmax
Tue May 08, 2018 7:55 pm
Forum: Stereo soundcard for the Raspberry Pi
Topic: How to setup and test
Replies: 129
Views: 179312

Re: How to setup and test

I'm having issues with pure data, every time I try to use the breakout I/O (stereo jacks) it always writes random errors and no audio is outputted. Attempt 1: output snd_pcm_delay failed: Unknown error 1044 astate 3 output snd_pcm_delay failed: Unknown error 470 astate 3 Attempt 2: output snd_pcm_d...
by flatmax
Tue May 08, 2018 7:54 pm
Forum: Stereo soundcard for the Raspberry Pi
Topic: How to setup and test
Replies: 129
Views: 179312

Re: How to setup and test

Hi,firstly very happy to say I got the board working, and it provides great sound :D However there were a couple of issues getting going: I was seeing this initially: audioinjector-stereo soc:sound: snd_soc_register_card failed (-517) ..with no success message. To get it working I had to do: 1. I a...
by flatmax
Sat Apr 21, 2018 8:14 pm
Forum: Stereo soundcard for the Raspberry Pi
Topic: Pi3 + audioinjector + batteries?
Replies: 2
Views: 2021

Re: Pi3 + audioinjector + batteries?

Nice !

Thanks for the update - I have also wondered in the past how well a battery bank would work.

Matt
by flatmax
Sat Apr 21, 2018 8:13 pm
Forum: Stereo soundcard for the Raspberry Pi
Topic: Rpi + injector for spectrum analysis - advice?
Replies: 1
Views: 598

Re: Rpi + injector for spectrum analysis - advice?

Hi there,

Sounds like fun - spectral analysis.

The Zero does come with a microphone, however you need to solder it in place. If you don't want to solder, then you can use the original stereo sound card which is all set up for you.

Matt
by flatmax
Wed Apr 18, 2018 4:11 pm
Forum: Ultra Sound card for the Pi
Topic: Preorder now on kickstarter
Replies: 1
Views: 1670

Preorder now on kickstarter

Hey there,
This is our latest and greatest product.
Please pre-order now on kickstarter :
https://www.kickstarter.com/projects/12 ... f=aiforum2
by flatmax
Sat Mar 31, 2018 1:27 pm
Forum: Octo Sound Card for the Pi
Topic: Testing Octo
Replies: 19
Views: 10582

Re: Testing Octo

Those 2 extra inputs are phantom inputs ! Just part of the DMA mechanism.

You can loop back 6 outputs to test and then again with the last 2 outputs. Or you can use a mixer like this :
https://www.amazon.co.uk/dp/B00UIP0IPO
https://www.amazon.com/dp/B00UIP0IPO

To mix 2 lines down to one.

Matt
by flatmax
Sat Mar 31, 2018 1:23 pm
Forum: Octo Sound Card for the Pi
Topic: octo out of stock
Replies: 4
Views: 1683

Re: octo out of stock

We have entered a new manufacturing phase, where we are getting our FPGAs written in the factory - for that reason, there is a few months delay in getting new stock on the shelves. Apologies. This process however will make future manufactures far quicker and we shouldn't have a supply problem again....
by flatmax
Thu Mar 29, 2018 8:36 pm
Forum: Discussion and pointers
Topic: Tutorial 0 - Audio programming with gtkIOStream
Replies: 5
Views: 4405

Re: Tutorial 0 - Audio programming with gtkIOStream

Hi! When i run the ./tools/autotools.sh i've got the error message: configure.ac 29: installing './missing' applications/Makefile.am installing './depcomp' applications/Makefile.am 82: warning: variable 'JackFullDuplex_SOURCES' is defined but no program or applications/Makefile.am 82: library has '...
by flatmax
Thu Mar 29, 2018 8:35 pm
Forum: Discussion and pointers
Topic: Audio Injector Ultrasound
Replies: 3
Views: 2641

Re: Audio Injector Ultrasound

Yes - it will go live. I just received the latest batch of chips and parts to build the latest prototype !
I am currently designing the input and output line drivers/receivers. Once these are good and stable, I will launch !

Stay tuned.

Matt