Re: Multiple audio ports

2021-08-28 Thread Paul Atreides
This is definitely possible as I’ve done it with a Tascam US428 4ch usb Interface. A good place to start is to run the commands aplay -l [this lists your interface options] and alsamixer [which can I help you relate names to interfaces as well] They are usually sub indexed, something like 0,0

Regarding an error in the gr-packetizer

2021-08-28 Thread GNU Radio, the Free & Open-Source Toolkit for Software Radio
Hello everyone, I am currently working on the project "'Implementation of a packet encoder/decoder pair in the GNU radio framework'".I am getting some an error while running the project shown as: Showing: "/home/dragon/chchc/gnuradioproject-master/gr-packetizer/examples/chain_rx_debug_differential.

Re: afsk ax.25 transmission using gnu-radio 3.8

2021-08-28 Thread Daniel Estévez
Hi all, Maybe this example is useful: https://github.com/daniestevez/gr-satellites/blob/master/examples/ax25/afsk.grc It uses in-tree blocks and a couple blocks from gr-satellites to implement an 1k2 AFSK AX.25 transceiver using the soundcard. Best, Dani. El 27/8/21 a las 17:02, Paul Atrei

Multiple audio ports

2021-08-28 Thread Barry Duggan
I would like to make a flowgraph with two separate (independent) audio input ports and two separate (independent) audio output ports. Is it possible using Audio Source and Audio Sink blocks and/or using direct file I/O to /dev names (bypassing PulseAudio)? I've tried a scheme on two computers us