problem regarding audio signal

hi all, can any one give me a solution,how to show that audio signal frequency lies between 20hz to 20khz.can i take the signal from any microphone and test the frequency in matlab.pl give me solution. regards k.v.swamy

Answer 1

[Azzi Abdelmalek]

here an example for recording your voice

 % Record your voice for 5 seconds.
recObj = audiorecorder;
disp('Start speaking.')
recordblocking(recObj, 5);
disp('End of Recording.');

 % Play back the recording.
play(recObj);
% Store data in double-precision array.
myRecording = getaudiodata(recObj);

 % Plot the waveform.
 plot(myRecording);

[k.v.swamy]

sir how to connect microphone to matlab system.can u eloborate.

[Azzi Abdelmalek]

you have'nt to do it

[k.v.swamy]

if iam not configuring mic to the system, how will the matlab recognize the audio.

[Azzi Abdelmalek]

i thought it was done

[k.v.swamy]

sir could u explain me how to configure mic to a matlab system.

[Azzi Abdelmalek]

configure your micro to your windows system. matlab will recognize it.

[k.v.swamy]

thank you very much sir.