Signal Process... With Matlab [project help]

[umutguncan]

Hello!!
I've a project and I've problems with this..
there is a sound signal
**broken link removed**

named: odev1.mat

in matlab ı have to do....



signal
-------------> FMDEMOD-----------highpassfilter-------AM, single sideband.--->msg2
|
|
--------lowpass filter-------------->msg1



and there are 2 messages to listen...
I wrote this codes

>> x = demod(sinyal,10000,Fs,'fm');
>> soundsc(x,2000000)


without the lowpassfilter ı can hear the msg1

but how can ı hear msg 2?? [/img]

 

[rsrinivas]

wat's the format of the odev1 file that u have there.
it's 3.8Mb but not even 0.3 seconds in length.

 

[umutguncan]

odev.1mat has 3 files in matlab...
1.fs . simple frequenct
2.delta_f . Δf
3.sinyal .sound

 

[umutguncan]

>> fmdemod=demod(sinyal,10000,Fs,'fm');

>> x=filter(hpfilt,1,fmdemod);

>> msg2=demod(x,20000,Fs,"amssb");

>> soundsc(msg2,200000)

>> msg1=filter(lpfilt,1,fmdemod);

>> soundsc(msg1,200000)




I use toolbox for designing filters....
lowpassfilter(lpfilt)
highpassfilter(hpfilt)


ITS DONE:idea: