Sound intensity in MATLAB

[alitavakol]

Hi
I know something about sound playing in MATLAB. we define a vector containing voltage values to be sent to the audio device.
I can play any frequency. how about its intensity.

 

[echo47]

sound in MATLAB

wavplay(1.0 * sin(1:1000));   % loud
wavplay(0.1 * sin(1:1000));   % soft

 

[javad_akhlaghi]

Re: sound in MATLAB

You can use
sound(data,fs)
where data is vector and fs is sampleing frequency

 

[Doka]

Re: sound in MATLAB

You can use
sound(data,fs)
where data is vector and fs is sampleing frequency

I like used for it function soundsc() (instread sound())
last parameter that :
SOUNDSC(Y,...,SLIM) where SLIM = [SLOW SHIGH] linearly scales values in Y in the range [SLOW, SHIGH] to [-1, 1]. Values outside this range are not clipped. By default, SLIM is [MIN(Y) MAX(Y)].

 

[toma_norbi]

Re: sound in MATLAB

You can use Simlink (from wave file and to wave file) and define a gain in order to modify the amplitude of the sound file.