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error 200279 by acquiring audio signals

Hi everybody,

 

I try to acquire audio signals from my ipod with the myDAQ-device in Labview. The VI i have make consists of a DAQ-assistant wich the data output is connected to the input of a playwaveform. This is placed in a while loop. I have set the " samples to read": 20k; Rate(hz): 100k ; acquiring mode: continuous samples. When I run it, I always has an error ( 200279) after a few seconds. i have tried to increase the value of "samples to read" but this doesn't help. Can somebody help me please? i have also tried the mydaq_equalizer.vi

 

 

thanks, 

william 

 

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Message 1 of 4
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Hello William,

 

Did you get exactly the same error with the mydaq_equalizer example?

Can you share the VI you're currently using?

 

The Buffer Error -200279 indicates that there is something going wrong with either the reading from or writing to the buffer (or both)?

 

Can you post a screenshot of the error cluster or (even better) copy the error cluster information to over here?

This we can see the indicated source of the error.

 

 

Kind Regards,
Thierry C - CLA, CTA - Senior R&D Engineer (Former Support Engineer) - National Instruments
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Hi,

 

I got the same error with the mydaq_equalizer example.

Because it I am a beginner with data-acquisition it is a very simple VI.

The error said: "Error-200279 occured at Acquiring Audio signals.vi:Instance:1:1

I have post even a screenshot of the error 

 

Friendly regards,

william

 

 

 

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Message 3 of 4
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Hi William,

 

The Play Waveform Express VI is really intended to be used for finite audio output--the VI will block until the waveform has finished generating and it configures and clears the hardware resources on each call (not ideal for streaming of course).

 

You will probably need to break this down to the lower-level APIs in order to implement what you want.  Something like this:

 

2012-04-10_144013.png

 

 

Best Regards,

John Passiak
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