---
name: "trx-rx"
section: "1"
platform: "linux"
package: "trx"
version: "0.5-4+b1"
release: "Debian 12 (Bookworm)"
platforms: ["linux"]
url: "https://new.carta.tech/trx-rx"
---

# trx-rx(1)

real-time audio receiver over IP

## NAME

trx-rx - real-time audio receiver over IP

## SYNOPSIS

**trx-rx** \[**-d** *DEV*\] \[**-m** *MS*\] \[**-h** *ADDR*\] \[**-p** *PORT*\] \[**-j** *MS*\] \[**-r** *RATE*\] \[**-c** *N*\] \[**-v** *N*\] \[-v *FILE*\]

## DESCRIPTION

**trx-rx** receives real-time audio over IP and plays it out to an ALSA audio device.

## OPTIONS

- **-d** ***DEV***

  The alsa device name. Default is 'default'

- **-m** ***MS***

  Set the buffer time. Default is 16 milliseconds

- **-h** ***ADDR***

  Set the IP address to listen on. Default is ::

- **-p** ***PORT***

  Set the UDP port to listen on. Default is 1350

- **-j** ***MS***

  Set the jitter buffer length. Default is 16 milliseconds.

- **-r** ***RATE***

  Set the sample rate. Default is 48000Hz.

- **-c** ***N***

  Set the number of channels. Default is 2.

- **-v** ***N***

  Set the verbosity level. Higher *N* implies more verbosity. Default is 1.

- **-D** ***FILE***

  Run the receiver as a daemon, writing the process ID to *FILE*.

## NOTES

The Debian package has renamed the upstream binary **rx** to **trx-rx** as it is less generic and less likely to collide with other packaged binaries.

## EXAMPLE

To receive audio being sent to the local interface with the IP address 239.0.0.1 use the following:

```
trx-rx -h 239.0.0.1
```