Apogee Symphony 64 User Manual page 49

Symphony64 PCI card – User's Guide
Maestro Mixer
An Overview
By routing the hardware input directly to the hardware output and mixing in playback as shown in Figure B,
it's possible to provide the vocalist a headphone monitoring signal with a much shorter delay.
First, the signal being recorded (in this case, a vocal mic) is split just after the A/D stage and routed to both
the software applicaton for recording and directly back to the hardware outputs without going through the
latency-inducing software; this creates a low latency path from mic to headphones. Next, a stereo mix of play-
back tracks is routed to the low latency mixer and combined with the hardware input(s). This allows the per-
former to hear himself without a confusing delay while listening to playback tracks in order to record overdubs.
Note that the software application's mixer is used to set a stereo mix of playback tracks while the low latency
mixer is used to set the balance between the stereo playback mix and the hardware inputs.
Figure 2
Figure B
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