Specifications

SETTING UP
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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).
Windows
D 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 can
communicate more or less directly with the audio hardware. The benefits are
lower latency (see below) and possibly better support for additional hard-
ware features such as multiple outputs.
D If there is no specific ASIO driver, you should select the Direct
Sound driver for the audio hardware.
This makes Reason communicate with the hardware via Direct Sound (a part
of the Microsoft DirectX package). You need to have DirectX installed on
your computer, and there must be a Direct Sound driver for the audio hard-
ware.
The Direct Sound driver for a Creative SoundBlaster PCI card selected.
D If the audio hardware doesn’t support Direct Sound (i.e. there is no
Direct Sound driver available for the audio hardware), select the
MME driver.
This makes use of Windows Multimedia Extensions, the part of Windows
that handles audio, MIDI, etc. Using MME often results in larger latency val-
ues (see below).
About Latency and other Audio Settings
In the audio page, you will find a number of additional settings for audio. The
most important ones are Buffer Size and the corresponding readout for Output
Latency.
Latency is the delay between when audio is “sent” from the program and when
you actually hear it. The latency in an audio system depends on the audio hard-
ware, its drivers and their settings.
If the latency is large, you will notice that the sound is delayed when you play a
device from a MIDI keyboard. You may also notice that reactions are delayed
when adjusting controls on the device panels (for example, if you lower the vol-
ume of a device, you will not hear this immediately but after the latency time).
If you experience high latency values, you will need to make adjustments to your
configuration.
• If available, use the Buffer Size slider to lower the latency.
• If this is greyed out, 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 Operation Manual.