UseStandardSampleRates

Configure session to use standard sample rates

Description

Use this property to specify if your audio channel uses standard sample rates supported by your device or a user-specified value. To use non-standard sample rates, set the value to false and set the sessions’s Rate to the desired value.

Example

Change Acquisition Rate

Add an audio channel to a session and change the UseStandardSampleRates property.

s = daq.createSession('directsound');
addAudioInputChannel(s,Audio1,1);
s.UseStandardSampleRates = false
s = 

Data acquisition session using DirectSound hardware:
   Will run for 1 second (44100 scans) at 44100 scans/second.
   Number of channels: 1
      index Type Device Channel MeasurementType     Range     Name
      ----- ---- ------ ------- --------------- ------------- ----
      1     audi Audio1 1       Audio           -1.0 to +1.0

Specify a different scan rate.

s.Rate = 8500
s = 

Data acquisition session using DirectSound hardware:
   Will run for 1 second (8500 scans) at 8500 scans/second.
   Number of channels: 1
      index Type Device Channel MeasurementType     Range     Name
      ----- ---- ------ ------- --------------- ------------- ----
      1     audi Audio3 1       Audio           -1.0 to +1.0