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aseqnet General Commands Manual aseqnet


aseqnet – ALSA sequencer connectors over network


aseqnet [remotehost]


aseqnet is an ALSA sequencer client which sends and receives event
packets over network. Suppose two hosts connected by network, hostA as
a server and hostB as a client. The ALSA sequencer system must be run‐
ning on both hosts. For creating the server port, run the following on

hostA% aseqnet
sequencer opened: 128:0

Then a user client 128 with port 0 was opened on hostA. (The client
number may vary.) For creating the (network-)client port, run aseqnet
with the hostname of the server:

hostB% aseqnet hostA
sequencer opened: 132:0

Now all events sent to hostA:128:0 are transferred to hostB:132:0, and
vice versa.

The ports created by aseqnet can be connected arbitrary to other
sequencer ports via aconnect. For example, to connect hostB:132:0
to a MIDI output device 65:0:

hostB% aconnect 132:0 65:0

Then events to hostA:128:0 will be delivered to hostB:65:0. The fol‐
lowing command plays MIDI on hostB.

hostA% pmidi -p 128:0 foo.mid

The multiple clients may exist simultaneously. If hostC is connected
as a client to hostA, events from from hostA are sent to all connected
network clients, i.e. hostB and hostC. However, only one connection is
allowed from a client to a server.

To disconnect network, stop all clients before server by ctrl-C or
sending signal to them. The server will automatically quit.


-p port
Specify the TCP port number or TCP service name.

-s addr
Subscribe to the given address for read automatically.

-d addr
Subscribe to the given address for write automatically.

-v Verbose mode.


aconnect, pmidi(1)


Takashi Iwai .

January 1, 2000 aseqnet