add noise to waveform graph problem

[lfoitek]

hello,
i am trying to add noise to a waveform graph.  the problem is that when i add noise to a sine wave it seems to work, but i also try to add noise to a speech waveform and nothing seems to happen.  kinda weird but cant seem to figure it out. 

i attached my vi and if the user clicks on the "speech wave" boolean control it will toggle between the speech wave and the sine wave.  you should see what i mean.

thanks,

[johnsold]

Your noise waveform and the speech waveform have different dt and number of samples. If you connect an indicator to the error out of the summation where "Noise" and "sine wave" are added together you will get error -1802 when the speech waveform is selected.

Lynn