StandardSampleRates
Display standard rates of sampling
Description
This property displays the standard sample rates supported by your audio device. You can
choose to use the standard rates or use values within the given range. See UseStandardSampleRates
for more information.
Standard sample rates for DirectSound audio devices are:
8000
8192
11025
16000
22050
32000
44100
47250
48000
50000
88200
96000
176400
192000
352800
Example
Set Rate of an Audio Session
Specify a nonstandard sample rate for a session with multichannel audio devices.
Create a session and add an audio channel.
s = daq.createSession('directsound') ch = addAudioInputChannel(s,'Audio1',1);
Specify the session to use nonstandard sample rates.
s.UseStandardSampleRates = false
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
Change the session rate to 85000.
s.Rate = 85000
s = Data acquisition session using DirectSound hardware: Will run for 1 second (85000 scans) at 85000 scans/second. Number of channels: 1 index Type Device Channel MeasurementType Range Name ----- ---- ------ ------- --------------- ------------- ---- 1 audi Audio1 1 Audio -1.0 to +1.0