# audio streaming over USB

Source: https://forum.modalai.com/topic/2340/audio-streaming-over-usb
Category: General Questions (https://forum.modalai.com/category/2/general-questions)
Posted: 2023-06-28 13:22:35 UTC by camcam089
Replies: 4 · Views: 565

## camcam089 · 2023-06-28 13:22:35 UTC

For my application I need to stream audio from a remote computer to the VOXL2 as well as transmit audio from a microphone on the VOXL2 to the remote computer. I am using the USB expansion board and a usb mic and speaker solution. I am having some issues with getting any sound out of the voxl and also with getting pulse audio to work in general. I am using g streamer for the creation of the RTSP stream and it works between the remote computer and a stand in NVIDIA jetson however when I integrate it with the VOXL I am running into issues. Is there something disabled on the VOXL by default or is there any other wisdom that can be offered towards solving this issue?

## Reply by Eric Katzfey (ModalAI staff) · 2023-06-28 16:23:12 UTC

@camcam089 How are you launching GStreamer? What is the configuration? Have you tried enabling debug messages from GStreamer? https://gstreamer.freedesktop.org/documentation/tutorials/basic/debugging-tools.html?gi-language=c

## Reply by camcam089 · 2023-06-28 18:45:24 UTC

I am launching gstreamer just using a simple shell script that creates a basic rtsp stream pipeline. I am having trouble getting any audio out of the voxl at all even when I plug in my usb headphones and try to do any form of audio test there is still no output. I can see the microphone as well as the speaker in the device list and everything seems to be configured correctly it just never outputs any sound.

## Reply by Eric Katzfey (ModalAI staff) · 2023-06-29 15:52:03 UTC (in reply to camcam089)

@camcam089 I would enable GStreamer debug messages and see if there are any error reports when starting your GStreamer pipeline.

## Reply by Hyunsoo Kim · 2024-03-26 21:35:13 UTC (in reply to camcam089)

@camcam089 
Hi, I am also trying to work on doing audio streaming over USB. 
I am curious if your code is open in github or somewhere else.