- Ardour supports various ways of sending and receiving MIDI data: + MIDI input and output for Ardour are handled by the same "engine" + that handles audio input and output. Up to release 3.5, that means + that all MIDI I/O takes place via JACK. JACK itself uses the + native MIDI systems of the operating system to receive and send + data which are:
-CoreMIDI is the standard MIDI framework on OSX systems. It provides drivers for MIDI hardware and libraries needed by MIDI software clients.
-ALSA MIDI is the standard MIDI framework on Linux systems. It provides drivers for MIDI hardware and libraries needed by MIDI software clients.
- The QJackCtl control software displays ALSA MIDI ports + The QJackCtl control software displays ALSA MIDI ports under its "ALSA" tab (it does not currently display CoreMIDI ports). + By contrast, JACK MIDI ports show up under + the MIDI tab in QJackCtl.
- -- JACK MIDI - is a framework used to comunicate between JACK MIDI software clients. - It provides zero jitter and a fixed latency of one period, - the same latency as for JACK audio. -
-- JACK MIDI ports show up under the MIDI tab in - QJackCtl. -
- + +- There are several ways of bridging between the native MIDI frameworks - (e.g. CoreMIDI or ALSA) and JACK MIDI, as described in the sections - below. +By default, JACK will not automatically detect and use existing MIDI +ports on your system. You must choose one of several ways +of bridging between the native MIDI frameworks +(e.g. CoreMIDI or ALSA) and JACK MIDI, as described in the sections +below.
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