arecordmidi

arecordmidi: This command does not have a standard synopsis as it is not a recognized utility.

Instead, consider how MIDI recording is typically done with ALSA utilities:
To record raw MIDI events from a source (e.g., a MIDI keyboard connected to an ALSA port), you would commonly use:

aconnect -l (to list available MIDI ports)
aseqdump -p source_port_id > output_file.mid (to dump MIDI events from a specified port to a file)

For example, if your MIDI keyboard is on port '20:0':
aseqdump -p 20:0 > my_midi_recording.mid

Note that aseqdump provides raw event streams, which might require further processing to become a proper Standard MIDI File (SMF). For more structured MIDI file creation, a dedicated sequencer application is usually preferred.

arecordmidi is not a standard, recognized command in mainstream Linux distributions or part of the official ALSA (Advanced Linux Sound Architecture) utilities. The name suggests a tool for recording MIDI (Musical Instrument Digital Interface) data, likely mirroring the functionality of arecord for audio.

While arecordmidi itself doesn't exist as a standalone command, users can record MIDI data on Linux using other ALSA sequencer tools. The typical approach involves utilizing commands like aconnect to manage MIDI port connections and aseqdump (or similar sequencer applications) to capture MIDI events to a file. Advanced MIDI recording often uses dedicated Digital Audio Workstations (DAWs) or MIDI sequencers that leverage ALSA's MIDI capabilities.

arecordmidi is not a standard Linux command.
Any script or binary found on a system named 'arecordmidi' would be a custom creation, not part of the official ALSA or core Linux utilities. Therefore, its behavior, options, and reliability are entirely dependent on its creator. Users looking to record MIDI on Linux should instead rely on established ALSA tools like aconnect and aseqdump, or dedicated MIDI sequencing software.

To record MIDI data on a Linux system, especially from an external MIDI device connected via USB or MIDI interface, the general steps involve:

1. Identify MIDI Ports: Use aconnect -l to list all available ALSA MIDI input and output ports. Find the port corresponding to your MIDI input device (e.g., a keyboard or controller).

2. Record Raw MIDI Events: For simple event capture, aseqdump -p input_port_id > output.mid will dump all MIDI events from the specified input port into the output.mid file. Press Ctrl+C to stop recording. Be aware that aseqdump records raw events, which might require further processing to conform to a proper Standard MIDI File (SMF).

3. Use MIDI Sequencer Software: For professional or more structured MIDI recording (e.g., multitrack, quantization, editing), it is highly recommended to use dedicated MIDI sequencer software or Digital Audio Workstations (DAWs) that support ALSA MIDI. Examples include Rosegarden, Qtractor, LMMS, or Ardour. These applications provide comprehensive recording, editing, and playback capabilities and typically save in Standard MIDI File (SMF) format.

There is no official history for a command named arecordmidi, as it does not exist as a standard ALSA or Linux utility. The ALSA project itself (Advanced Linux Sound Architecture) was developed to replace the older OSS (Open Sound System) and has been the standard sound architecture in Linux since kernel 2.6. ALSA provides a robust MIDI sequencer API, allowing applications and utilities like aconnect, aseqdump, and aplaymidi to manage and interact with MIDI devices and data streams.

aconnect(1), aseqdump(1), aplaymidi(1), arecord(1), amidi(1)