Answered
Need help for GUI of DTMF
Can anybody guide me for this

12 years ago | 0

Question

Need help for GUI of DTMF
I have written a code which generates DTMF tones of .5 sec each with 0.1 sec silence gap.I am using this command. soundsc(dt...

12 years ago | 2 answers | 0

2

answers

Answered
Need help for DTMF Scoring fucntion
Thanks King I am following ur guidance and things are working smooth uptill now

12 years ago | 0

Answered
Need help for DTMF Scoring fucntion
Sir king thanks for ur effort but book requirement is this one *the book says that input signal xx to dtmfscor function is ac...

12 years ago | 0

Answered
Need help for DTMF Scoring fucntion
Sir King, sorry i am bothering u again, actually i am weak in functions so i m getting stuck. But i hope if this problem is solv...

12 years ago | 0

Answered
Need help for DTMF Scoring fucntion
Ok thanks King, i was thinking to make short segment of every input. For example if there are 2 keys, then i will make segment o...

12 years ago | 0

Answered
Need help for DTMF Scoring fucntion
Plz guide me for this

12 years ago | 0

Answered
Need help for DTMF Scoring fucntion
Thanks a lot Wayne King for giving hint of Goertzel Kindly explain me overall picture of scanrion 1. I have written a func...

12 years ago | 0

Answered
Need help for DTMF Scoring fucntion
Thanks a lot Wayne King. i am stuck with this part for last two days This is exact statement of book. I have written code for...

12 years ago | 0

Question

Need help for DTMF Scoring fucntion
I have written a code for DTMF tone generation. Now for decodiing purpose, i have written code for dtmfscore function ss = d...

12 years ago | 11 answers | 0

11

answers

Question

Error while calling a function
I have written a function which is working fine The function is function [dtmf]=dtmfdial(x); Now i have made m file and...

12 years ago | 1 answer | 0

1

answer

Answered
How to use ouput of a function as input of second function
Wayne King plz help me I am badly stuck with this portion

12 years ago | 0

Answered
How to use ouput of a function as input of second function
Can u help me for this part of book, I have written the code but i am stuck now The next objective is decoding - a process that...

12 years ago | 0

Question

How to use ouput of a function as input of second function
I have written a function function [dtmf]=dtmfseg(x); Now i want to use the output of this fuction as input to second func...

12 years ago | 4 answers | 0

4

answers

Answered
Kindly help me for question of DTMF decoding, i am stuck in it
Uptill now i have written code for DTMF generation which is working absolutely fine. I have also cross checked the tones through...

12 years ago | 0

Question

Kindly help me for question of DTMF decoding, i am stuck in it
This is question. The next objective is decoding - a process that requires a binary decision on the presence or absence of the...

12 years ago | 1 answer | 0

1

answer

Question

Need help for selectivity of filters based on filter length
I have written this code for two filter lengths (L) h770=[]; L=10; fs=8000; fb=770; h770 = (2/L)*cos(2*pi*fb*(0...

12 years ago | 1 answer | 0

1

answer

Answered
Kindly verify my code of DTMF decoding step
Wayne King u wrote this code for me [H,F] = freqz(h,1,[],fs); plot(F,20*log10(abs(H))); grid on; xlab...

12 years ago | 0

Answered
how to make grid lines closer in xaxis and y axis
I am getting this error when i pasted ur code in my code ??? Undefined function or variable 'AX'.

12 years ago | 0

Question

how to make grid lines closer in xaxis and y axis
I have written this code h1336=[]; L=50; fs=8000; fb=1336; h1336 = (2/L)*cos(2*pi*fb*(0:L-1)/fs); [H,F] = fr...

12 years ago | 4 answers | 0

4

answers

Question

How to plot this equation of unit step function
I have plotted this equation by hand i just want to see how matlab plots it y[n]= u[n-1]-u[n-2]-u[n-3]+u[n-4] plz tell me ...

12 years ago | 1 answer | 0

1

answer

Answered
Kindly verify my code of DTMF decoding step
Wonderful Help Wayne King Thanks a lot for making me understand this issue

12 years ago | 0

Answered
Kindly verify my code of DTMF decoding step
Yes u are absolutely right *I question why your book constructs a frequency axis in angular frequencies, when in this applicati...

12 years ago | 0

Answered
Kindly verify my code of DTMF decoding step
Thanks King, can u explain 'Fs' and fs in this command The book also tells to plot magnitude response by this h770=[]; ...

12 years ago | 0

Answered
Kindly verify my code of DTMF decoding step
ok thanks king kindly confirm me is my code ok as per book question

12 years ago | 0

Answered
Kindly verify my code of DTMF decoding step
Yes, this issue i know but when i tell matlab to do for n=0:L It gives error *??? Attempted to access h(0); index mus...

12 years ago | 0

Answered
Kindly verify my code of DTMF decoding step
I dont have test data. i just want somebody to read my statement and see my code i hope it is ok but just want to cross check f...

12 years ago | 0

Question

Kindly verify my code of DTMF decoding step
I want to decode DTMF tones by using FIR Filter. The filters that are required to be used in filter bank are cnstructed by Sinus...

12 years ago | 11 answers | 0

11

answers

Question

Why i am gettiing warning
I have generated dtmf tones and i am listening them i tried to write them in wave file by using this command wavwrite(dtmf...

12 years ago | 7 answers | 0

7

answers

Answered
Need clarity of this command
So kindly tell me the good way to do this as i am also confused abt this statement of book f = [ f [a(c);b(r)] ]; why f is w...

12 years ago | 0