Another Chinese board, with little to zero instructions...
Hopefully this can be seen from others and grow as a small reference thread,
plz don't close it for inactivity.
I am trying to understand how to use a ALSA MIXER to use two DACs at the same time
GPIO HAT HIFIBERRY DAC has only output
AIDEPEEN USB FM TRANSMITTER has FM OUT and AUX IN...
The problem is now they system do not sees the Usb FM transmitter anymore since I updated to the last rpi OS...
I have made short video with bad focus but proof the Usb FM card was working initially...
I didn't change anything, plug and play, and the system was able to locate it, and I
could choose it in the ALSA MIXER, use the AUX IN, process tha AUDIO in, and send it out
on both the DAC HIFIBERRY, and the USB FM STREAM.
I haven't done anything to the system, I have Usbview installed, the USb FM is powered on,
but there is no USBVIEW correspondance.
Same cable, same raspberry.
Maybe I changed hifiberry in config.txt to ,slave...???
There are zero instructions. It is an AIDEPEEN FM TRANSMITTER
Module transmitter FM digital stereo Microphone AUX wireless board DC 3V-5V 87.0MHz-108.0MHz USB universal plug and play.
Hopefully this can be seen from others and grow as a small reference thread,
plz don't close it for inactivity.
I am trying to understand how to use a ALSA MIXER to use two DACs at the same time
GPIO HAT HIFIBERRY DAC has only output
AIDEPEEN USB FM TRANSMITTER has FM OUT and AUX IN...
The problem is now they system do not sees the Usb FM transmitter anymore since I updated to the last rpi OS...
I have made short video with bad focus but proof the Usb FM card was working initially...
I didn't change anything, plug and play, and the system was able to locate it, and I
could choose it in the ALSA MIXER, use the AUX IN, process tha AUDIO in, and send it out
on both the DAC HIFIBERRY, and the USB FM STREAM.
I haven't done anything to the system, I have Usbview installed, the USb FM is powered on,
but there is no USBVIEW correspondance.
Same cable, same raspberry.
Maybe I changed hifiberry in config.txt to ,slave...???
There are zero instructions. It is an AIDEPEEN FM TRANSMITTER
Module transmitter FM digital stereo Microphone AUX wireless board DC 3V-5V 87.0MHz-108.0MHz USB universal plug and play.
Statistics: Posted by Zool64Pi — Sat Jul 26, 2025 3:27 pm