When you play back a recording, you want it to be routed to a certain sound in one of your synthesizers. Let’s say you have a synthesizer that plays a bass sound on MIDI Channel 3. To route a Track to that sound you set it to MIDI Channel 3.
This Track is set to play back on MIDI Channel 3.Now the following happens: When you hit play Cubase VST plays back all the data on the Track, but when doing so it replaces the MIDI Channel number stored in the Events with that of the Track – in this example, MIDI Channel 3!
These Events, on different MIDI Channels...
...get their MIDI Channel changed to that of the Track, during playback.
This replacement is done as part of the playback procedure, that is, it does not affect the recording permanently. If you check the data on the Track in List edit (as mentioned above) all the Events still have their MIDI channel intact.
This is what we refer to as rechannelizing – changing the MIDI Channel of the Events on playback.Rechannelizing is very convenient because it lets you forget what MIDI Channel number your keyboard is set to transmit on. Instead, to route a Track to a certain sound, you simply set the MIDI Channel number in the Track list in Cubase VST. And, if you decide you want to route the Track to another synthesizer, later, the only thing you have to do is to change the MIDI Channel setting for the Track.