how to create a finite audio sample

[Moose123]

I need to create a VI that can generate a certain frequency in bursts. The burst length and pause length must be user selectable which is easy, but I cannot seem to create this burst of sound.

[Benjamin Cook]

Hello Moose123,

Are you trying to output the bursts to the speakers.  If so, there are sound VI's that will allow you to do that (Express >> Output>>Play Waveform).  You also must make sure the frequencies are within audible range 40Hz-10KHz. 

Hope this helps,

Benjamin Cook

Applications Engineer

National Instruments

[Moose123]

this helps part of the problem, but the other part is to generate this waveform. I need to generate a burst of sound, but have pauses in between.

[Benjamin Cook]

Hello,

My suggestion would be to make a state machine that alternates between a wait state, and sound generation state.  See the below documentation on state machines using labview.

http://zone.ni.com/devzone/cda/tut/p/id/3024

In the sound generation state, you can attach any finite waveform you have created (see the Generate Sound.vi example in the labview example finder [ help >> find examples ] )

Regards,

Benjamin Cook

Applications Engineering

National Instruments