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JACK_NETSOURCE(1) General Commands Manual JACK_NETSOURCE(1)


jack_netsource - Netjack Master client for one slave


jack_netsource [ -H hostname ] [ options ]


jack_netsource The Master side of a netjack connection. Represents the slave jackd -dnet in the master jack graph. Most connection parameters are configured via the netsource, and the slave will set itself up according to the commandline option given to jack_netsource.
Netjack allows low latency audio connections over general IP networks. When using celt for compression, it is even possible to establish transatlantic links, with latencies not much over the actual ping time.
But the main usecase is of course a LAN, where it can achieve one jack period of latency.


Host name of the slave JACK

Number of audio playback channels

Number of audio capture channels

Number of midi playback channels

Number of midi capture channels

Network latency in JACK periods

UDP port that the slave is listening on

UDP port that we are listening on

reply port, for use in NAT environments

Set transport to use 16bit or 8bit

Use CELT encoding with <bytes> per period and channel

Assume this mtu for the link

Redundancy: send out packets N times.

skip host-to-network endianness conversion

Reports a different client name to jack

Connect to the jack server named servername

Display help/usage message

Output version information and exit


run a 4 audio channel bidirectional link with one period of latency and no midi channels. Audio data is flowing uncompressed over the wire:
On hostA:

jackd -d alsa
jack_netsource -H hostB -n1 -i4 -o4 -I0 -O0

On hostB:

jackd -d net

2024-03-12 1.9.21