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ASIO.DeviceSampleRateSupportedCountGet method

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Obtains the number of sample rates supported by the given ASIO device. Single supported sample rates can be obtained through the ASIO.DeviceSampleRateSupportedGet method.

This method can be only used after the ASIO device has been started through the ASIO.DeviceStart method.


For further details about the use of ASIO drivers see the ASIO object section and the How to manage ASIO drivers tutorial.





[Visual Basic]

control.ASIO.DeviceSampleRateSupportedCountGet (

nDeviceIndex as Integer,

nCount as Long

) as enumErrorCodes



short control.ASIO.DeviceSampleRateSupportedCountGet (

short nDeviceIndex,

long *nCount








Number representing the zero-based index of the ASIO device.

This index is related to available ASIO devices so it must be the related to the enumeration performed through the ASIO.DeviceGetCount and ASIO.DeviceGetDesc methods: it must not be confused with indexes related to generic output devices enumerated through the GetOutputDevicesCount and GetOutputDeviceDesc methods which may contain both DirectSound and ASIO devices.


Reference that, on return from the method call, will contain the number of sample rates supported by the given ASIO device.




Return value






Negative value

An error occurred (see the LastError property for further error details)

enumErrorCodes.ERR_NOERROR (0)

The method call was successful