ASIO drivers

Sonar supports ASIO drivers. You are limited to a single sound card when using an ASIO driver.

To use an ASIO driver

Use the following procedure to enable Sonar for use with an ASIO driver.

1.	Go to Edit > Preferences > Audio - Playback and Recording.

2.	Click the Driver Mode list and select ASIO.

Sonar re-profiles your audio hardware.

Note: Some ASIO drivers are know to be incompatible with Sonar and can lead to instability or crashes. If an incompatible ASIO driver is detected, Sonar will offer to switch the driver mode to WASAPI.

ASIO sample position

UseHardwareSamplePosition=<0, 1>, default = 0

This variable applies to ASIO mode only and controls whether Sonar internally compute the sample position based on buffer switch calls or uses the ASIOGetSamplePosition reported value to retrieve the driver reported value.

Some drivers change the reported sample position based on how long a buffer switch took to complete and this can cause problems since Sonar expects the reported position to be in sync with the number of buffers actually streamed.

This Aud.ini variable defaults to 0.