am modulator

[rrr1]

Hi,

I'm trying to modulate a sound file with AM. My problem is that the sample rate of the song is low and I'm usign a real AM frequency carrier which has a pretty high frequency (I'm choosing one frequency between 540 KHz and 1600 KHz). 

The sample rate of my song is 44100. When I multiply the message and the carrier I get an error that says "Waveforms have different dt values" in the multiplication triangle. Of course it's because the ample rate is different between the message and the carrier but I actually need a much higher sample rate for the carrier (at least 1600K*2) and the song only has 44100.

Is there a possibility to sample the song at a rate that I would like? Would that affect the sound file?

Can somebody help me please?

Thank you very much in advanced.

[johnsold]

Look at Resample Waveform in the Signal Conditioning palette.

If your sampling rate is only slightly higher than the minimum required by Nyquist, you will also need an anti-aliasing filrer following the D/A converter to prevent the signal from containing excessive harmonics.

Lynn

[rrr1]

Thank you for answering.

I'm not able to do it. I still get the same error. In here, I'm posting my original VI. The error pops in the multiply box and it says "Waveforms have different dt values". 

I tried usign a Scale delta t VI to get the same sample rate I'm usign in the sine but I still get the same error. Can somebody help me please?

Thanks in advanced.