User Manual

SETTING UP
26
Mac OS X
D Select the option that corresponds to the hardware you want to use (the built-in audio
connectors or some additional audio hardware that you have installed).
q A number of predefined combinations of built-in inputs and outputs will also be available
in the Audio Card Driver pop-up.
The number of available input(s)+output(s) combinations depends of your computer’s specific audio
hardware configuration.
Windows
!
If you run Reason Intro under Windows, it’s required that the audio hardware supports
ASIO drivers, otherwise you won’t be able to record any audio.
D Select the option that corresponds to the ASIO hardware you want to use.
If you are using audio hardware for which there is a specific ASIO driver, you should select this.
With an ASIO driver written specifically for the audio hardware, Reason Intro can communicate more or
less directly with the audio hardware. The benefits are lower latency (see below) and possibly better
support for additional hardware features such as multiple inputs and outputs.
About Latency and other Audio Settings
On the Audio tab, you will find a number of additional settings for audio. The most important ones are
Buffer Size and the corresponding readouts for Input and Output Latency.
The Input Latency is the delay between when the audio is “sent” from a connected microphone or
instrument and when it’s received and detected by Reason Intro. Output Latency is the delay between
when audio is “sent” from Reason Intro and when you actually hear it. The latencies in an audio system
depends on your audio hardware, its drivers and their settings.
When you select a driver, its latency values are automatically reported by the audio card and displayed in
the on the Audio tab in Preferences. Depending on the audio hardware and the driver, you may be able to
adjust these values. If you experience high latency values, you will need to make adjustments to your
configuration.
D If available, use the Buffer Size slider to lower the latency.
The lowest buffer size setting you can choose depends on the audio drivers and your computer's per-
formance. If you get crackles and glitches during playback, the buffer size is set too low for your sys-
tem - you need to raise the buffer size until you can play back normally.
D If the Buffer Size slider is disabled, you may be able to lower the buffer size in the control
panel for the audio hardware - click the Control Panel button to open this.
For more information, please consult the Reason Intro Operation Manual pdf.