User`s guide

Windows Driver 4.x © RME

5.1.1 The Main Tab

Buffer Size

The setting Buffer Size determines the latency between incoming and outgoing ASIO and WDM

data, as well as affecting system stability. While ASIO can use any offered buffer size, WDM is

limited to 256 (XP) or 512 samples (Win 7/8). The driver handles this automatically, higher

settings are only applied to ASIO while WDM will stay at 256/512 internally.

WDM Devices

Allows to freely set which I/Os are available as WDM devices, if these are stereo or multi-

channel devices (up to 8 channels), and if one or multiple of the currently active WDM devices

should have the Speaker property. More details are found in chapter 6.

Clock Mode

Sample Rate

Sets the currently used sample rate. Offers a central and comfortable way of configuring the

sample rate of all WDM devices to the same value, as since Vista the audio software is no

longer allowed to set the sample rate. However, an ASIO program can still set the sample rate

by itself.

During record/playback the selection is greyed out, so no change is possible.

Clock Source

The unit can be configured to use its own clock (Internal = Master), or one of the input signals

(Word, MADI, AES, ADAT). If the selected source isn't available (No Lock), the unit will change

to the next available one (RME’s AutoSync behaviour). If none is available then the internal

clock is used. The current clock source is displayed as Current.

Pitch

More information on Pitch is available in chapter 5.1.3.