Search found 6 matches

by whalechaser
Thu Sep 20, 2018 1:09 am
Forum: Stereo soundcard for the Raspberry Pi
Topic: ADC High Pass Filter
Replies: 0
Views: 128

ADC High Pass Filter

Hi,

I am working on a project where I need to record signal down to 20 Hz. Is there information about what the cutoff is if the HPF is enabled? And if it is disabled?

Thank you,

Chris
by whalechaser
Thu May 11, 2017 3:10 am
Forum: Stereo soundcard for the Raspberry Pi
Topic: Unable to record at 2 kHz
Replies: 2
Views: 799

Re: Unable to record at 2 kHz

Great - this solution did work for recording @ 4 kHz on my Pi, which will be sufficient for my project.

Thank you,

Chris
by whalechaser
Thu May 11, 2017 3:08 am
Forum: Stereo soundcard for the Raspberry Pi
Topic: Audio Input Not Working
Replies: 6
Views: 1652

Re: Audio Input Not Working

Yes the alsamixer settings are the same.
by whalechaser
Mon May 08, 2017 8:53 pm
Forum: Stereo soundcard for the Raspberry Pi
Topic: Audio Input Not Working
Replies: 6
Views: 1652

Re: Audio Input Not Working

I am using the 2 channel card. I have since reflashed with Raspbian ( I was using Ubuntu) and now the input is working correctly.

Thanks,

Chris
by whalechaser
Sun May 07, 2017 12:52 pm
Forum: Stereo soundcard for the Raspberry Pi
Topic: Unable to record at 2 kHz
Replies: 2
Views: 799

Unable to record at 2 kHz

I am attempting to record 1 channel at 2 kHz using arecord and get this error: pi@raspberrypi:~/Recordings $ Recording WAVE 'stdin' : Unsigned 16 bit Little Endian, Rate 2000 Hz, Mono arecord: set_params:1233: Sample format non available Available formats: - S16_LE - S24_LE - S32_LE Does the board n...
by whalechaser
Sat May 06, 2017 12:13 am
Forum: Stereo soundcard for the Raspberry Pi
Topic: Audio Input Not Working
Replies: 6
Views: 1652

Audio Input Not Working

Hi, I am a very novice Linux user working on a wildlife recorder build using the Pi and the Audioinjector soundcard. I have followed all of the suggestions here for setup and successfully installed the card, but cannot get the audio input working. I also notice that when I play audio out through Fir...