Hi there,
If you can use the Zero board, then you can connect through a pot. on the IO board. Otherwise, you need to use software.
Matt
Search found 609 matches
- Tue May 08, 2018 8:25 pm
- Forum: Stereo soundcard for the Raspberry Pi
- Topic: Headphone level
- Replies: 1
- Views: 1274
- Tue May 08, 2018 8:23 pm
- Forum: Stereo soundcard for the Raspberry Pi
- Topic: Pot next to RCA jacks labeled "in" not adjust headphone
- Replies: 2
- Views: 1135
Re: Pot next to RCA jacks labeled "in" not adjust headphone
Hi there,
On the zero version of this sound card, you can use an IO board to pass the headphone out through a pot to the connectors.
Otherwise you have to use software - such as alsamixer.
Matt
On the zero version of this sound card, you can use an IO board to pass the headphone out through a pot to the connectors.
Otherwise you have to use software - such as alsamixer.
Matt
- Tue May 08, 2018 8:22 pm
- Forum: Stereo soundcard for the Raspberry Pi
- Topic: Potentiometers for Zero Soundcard
- Replies: 1
- Views: 953
- Tue May 08, 2018 8:15 pm
- Forum: Stereo soundcard for the Raspberry Pi
- Topic: Setting WM8731 parameters
- Replies: 1
- Views: 845
Re: Setting WM8731 parameters
Hi there,
If you want to change the operation of the codec, probably the best place to alter register settings is in the codec driver :
https://github.com/raspberrypi/linux/bl ... s/wm8731.c
Matt
If you want to change the operation of the codec, probably the best place to alter register settings is in the codec driver :
https://github.com/raspberrypi/linux/bl ... s/wm8731.c
Matt
- Tue May 08, 2018 8:14 pm
- Forum: Stereo soundcard for the Raspberry Pi
- Topic: Cases or 3d printable case / CAD drawings?
- Replies: 1
- Views: 922
Re: Cases or 3d printable case / CAD drawings?
That would be awesome - unfortunately I don't have any 3D cad files.
Matt
Matt
- Tue May 08, 2018 8:13 pm
- Forum: Stereo soundcard for the Raspberry Pi
- Topic: Jackd crash
- Replies: 2
- Views: 1478
Re: Jackd crash
Is jackd running with real time priority ? Is it bumped up to the maximum ?
Matt
Matt
- Tue May 08, 2018 8:11 pm
- Forum: Stereo soundcard for the Raspberry Pi
- Topic: ffmpeg failing
- Replies: 7
- Views: 2729
Re: ffmpeg failing
Hi there, It is possible that the buffer being used is too small. It is likely that with USB there is some buffering provided for you. While ffmpeg is executing can you probe the buffer size it is using ? For example : cat /proc/asound/card0/pcm0p/sub0/hw_params Here is documentation on how to probe...
- Tue May 08, 2018 8:03 pm
- Forum: Stereo soundcard for the Raspberry Pi
- Topic: Pure Data with Zero Soundcard
- Replies: 1
- Views: 993
Re: Pure Data with Zero Soundcard
Did you setup the card using the setup scripts ? Or did you manually set it up ?
when you type dmesg, can you see that the audio injector card is set up correctly ?
Matt
when you type dmesg, can you see that the audio injector card is set up correctly ?
Matt
- Tue May 08, 2018 8:02 pm
- Forum: Stereo soundcard for the Raspberry Pi
- Topic: New user (zero)
- Replies: 1
- Views: 832
Re: New user (zero)
Thanks for the awesome picture ! Yes- you should make sure you have a secure connection between the Pi and the Zero sound card. One way is to use the PCB Quick Connect clip - as you mentioned. Another is to purchase hammer headers. Finally you can solder. If you followed the setup link you sent in y...
- Tue May 08, 2018 8:00 pm
- Forum: Stereo soundcard for the Raspberry Pi
- Topic: Wich card for active noise control task
- Replies: 1
- Views: 929
Re: Wich card for active noise control task
Yes it is possible. If you lower the sample rate to 16 kHz for example then you should have less computational load and may be able to get your latency down to 1 or 2 ms. If you want to try as low as 8 kHz, you can modify the driver to let you sample with this low sample rate. There is a thread on t...