posted 23 July 2001 10:31            

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DCOffsetClicks.sit

Could someone in the know please take a look at the included Sound and let me know of a simple way to eliminate all the serious "DC clicks" that pop (yes, literally) up when the Sound is playing.

Thanks.

-o-

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posted 23 July 2001 14:36            

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The problem is occurring because the Sample Gates are on when the sample playback reaches the end of the recording. The envelope of the Sample will ramp down the output when the Gate turns off, which will be after 95% of the beat has gone by. However, because of the random Start position, you may play thru an arbitrarily small amount of the sample before reaching and sticking at the end of the sample, thus giving you the DC offset.

One solution is to fade the input of the MemoryWriter so that the end of the recording has zero amplitude, and then cannot contribute a DC offset when the Sample plays the end of the recording.

The best way to do this is to make a VCA with your source as one input and a FunctionGenerator (or some other envelope) as the other input. Use this VCA as the input to the MemoryWriter. Trigger the MemoryWriter (rather than using Cyclic) and simultaneously trigger the FunctionGenerator. You will need to set the parameters of the FunctionGenerator so that the FunctionGenerator has fully attenuated the input by the time the MemoryWriter has reached the end of the recording time.

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