Control frequency and amplitude of a loudspeaker.

[DavideMasiello]

Hi all,

I'm going to start some experiments using sound waves and I need to control the frequency and the amplitude of a loudspeaker with the following characteristics. Rated power: 1 W; Maximum power: 2 W; Nominal impedance (Z): 8 Ohm; Frequency response: 300–20000 Hz; Mean sound pressure level: 77 dB (1 W/1 m); Resonance frequency: 550 Hz. 

I would like to do it with Labview. Can anyone suggest me good references to learn how to do it, possibly avoiding too long or ery general handbooks.

Thank you,

Davide

[Henrik_Volkers]

You will need a pistonphon to calibrate your mic/preamp/ADC chain.

The rest can be done with the build in sound card and an amplifier/speaker

[NASmith]

Hi Davide, 

I would start with some of the examples you find in the LabVIEW example finder. Have you looked at these?

To open the example finder you just need to click Help>>Find examples... from any LabVIEW window. 

I just searched sound and found 72 different examples which could be useful to you (see attached screenshot)

Kind Regards, 

Nathan