Punching In And Punching Out; Overdubbing - Yamaha AW2400 Manual

Punch In/Out
If you make a mistake while recording, you can punch-in at the spot that
the mistake was made. To punch-in simply means to start recording again at the
point where the mistake was made. To perform a punch-in, first rewind the
AW2400 to a few seconds before the mistake. Next, press the [PLAY] key in the
transport section and when you get to the point where the mistake was made
simultaneously press the [PLAY] and [REC] keys and record over the mistake.
If the mistake is only a short one and you just need to fix the mistake and
not erase the rest of the track you can first punch-in at the point where the
mistake was and then punch-out when you have fixed the mistake. To perform a
punch-out, first punch-in at the point where the mistake was made then press the
[PLAY] key by itself to 'punch-out' of recording after you have fixed the mistake.

Overdubbing

After you have successfully recorded the first track or tracks, you
can then record additional tracks while listening to your previously recorded
tracks. This is referred to as 'overdubbing' tracks.
Before you begin overdubbing you must disengage the previously
recorded tracks from being record-enabled. If you don't, you will erase the tracks
that you just recorded.
11