aseqnet(1)

aseqnet1

Alsa sequencer connectors over network

Usage

aseqnet [remotehost]

Overview

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 running on both hosts. For creating the server port, run the following on hostA:

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(1). 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 following 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.

Options

-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.

-n name

Specify the midi name of the process.

-v

Verbose mode.

Releases

13 releases since Debian 3.0 (Woody); the text changed 3 times.

  1. 3.0
  2. 3.1–5.0
  3. 6.0–11
  4. 12–Arch

-n since Debian 12 (Bookworm).

Author

Takashi Iwai <[email protected]>.

From alsa-utils 1.2.16-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.