I set the audio jack output: sudo modprobe sndbcm2835 sudo amixer cset numid3 1. The key here is use of the dummy sink using module-null-sink. I try to play mp3 files with mpg321, mpg123 and omxplayer with hdmi works fine, but with the analog audio jack doesn't work I have installed alsa-tools and alsamixergui. The HDMI monitor it is connected to MUST HAVE a built in amplifier and speaker. This appears to work and I don’t have output audio from the ham transceiver also on the 0utput of the USB soundcard going back to the radio’s mic. For HDMI audio output, the HDMI cable must be connected to HDMI0 (the one beside the USB-C port) For a freshly installed raspbian. Pactl load-module module-loopback source=nx_voice_out.monitor sink=alsa_b-C-Media_Electronics_Inc._USB_Audio_Device-00.analog-stereo Next, I send audio from my Mac to the output of the USB soundcard to be input into the mic jack of my transmitter: This gets received audio from the radio’s headphone jack picked up by the nx_voice_out sink because dummy is now the default sink and the received audio is sent back to the speakers/headphones of the Mac. Pacmd load-module module-loopback source=alsa_b-C-Media_Electronics_Inc._USB_Audio_Device-00.analog-mono sink=dummy Pactl load-module module-null-sink sink_name=dummy Instead I created a dummy sink, made it the default sink, and assigned the output of the USB soundcard to the dummy sink: It also bothered me that we had both ouput and input audio on the output of the USB soundcard at the same time, this just didn’t seem right. It seemed to me like there was potential for feedback. Currently in pulseaudio I have my headset as the default device. As you can see there is no audio option to select from. We are also aware that the output from the Raspberry Pi’s internal audio device is in mono in the image this is now fixed. Attached are the screen shots of the connection after the setup. Started by: jefft in: NoMachine for Linux 2 4 5 years, 9 months ago. The nxinstallation.log is clean except for the CUPS module, which is not an issue since this is a fresh install of Raspbian. When you connect to the server from a thin client, and play something with sound, the sound comes out of the server, and not the client. I have a usb soundcard set up Turtle Beach Audio Advantage Micro. The problem with the way we were doing it meant that received audio coming from device alsa_b-C-Media_Electronics_Inc._USB_Audio_, the input of my USB soundcard, was being redirected to the output of the same soundcard, device alsa_b-C-Media_Electronics_Inc._USB_Audio_Device-00.analog-stereo. Topic Tag: raspberry pi pi3 no sound Logo thread. Log in to get rid of this advertisement I have a Ubuntu 10.04 server set up with freenx. I believe I have found a better way to send and receive audio to and from my amateur radio tranceiver.
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