User Manual

MENU AND DIALOG REFERENCE
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OK, so why not just set the latency to the lowest possible value? The problem is that selecting too low a latency is
likely to result in playback problems (clicks, pops, dropouts, etc.). There are several technical reasons for this, the
main one being that with smaller buffers (lower latency), the average strain on the CPU will be higher. This also
means that the more CPU-intensive your Reason song (i.e. the more tracks and devices you use), the higher the min-
imum latency required for avoiding playback difficulties.
See “About latency” for more information.
Recording latency compensation
If you are monitoring via an external mixer, and have selected “External” in the “Monitoring” section on the “Audio”
page in Preferences (see “Monitoring”), there might be situations where you experience that the recorded audio is
generally played back too early - or too late - in the song. This could be because the latency values reported to Rea-
son by the audio card were not completely accurate.
If you should experience that your audio recordings are played back too early or too late compared to the instrument
tracks in your song, you can adjust this by editing the Recording Latency Compensation parameter.
See “Recording Latency Compensation” for information.
Active input and output channels
This displays the number of audio input and output channels the currently selected audio hardware supports. If your
audio card has multiple inputs and/or outputs, and an audio driver that supports this is selected, the “Channels...” but-
ton will be enabled. Clicking this will bring up a window with check boxes for all available inputs and outputs. By tick-
ing these boxes, you are able to select which input and/or output channels should be active.
Active inputs and outputs will be also indicated with yellow and green LEDs in the Reason Hardware Interface - see
“How Reason communicates with your audio hardware”.
Clock source (ASIO Only)
If you are using an ASIO driver for your audio hardware, you have the possibility of selecting a Clock Source. This is
used for determining the source to which audio playback should synchronize its sample rate. If you have an audio
card and a driver that supports it, you can choose to synchronize to external sources.