PCM

This file does the PCM thing for any voice signal.

Description

This file converts the voice signal into PCM mode for transmission.

• Acknowledgements: This submission has inspired the following:; PCM coding
• MATLAB release: MATLAB 6.5.1 (R13SP1)

[Ali Hassan]

a very efficient code and totaly correct
Thank you for your participating

[Stefan Bunov]

 

[vasfi tuna]

my project was about sound zipping and I found this excellent code on this page ....it works and thanks to mathworks...

[JInbo li]

The sampling frequency is useless..

[nicolas chavarriaga]

i have a question, i have to coder a .WAV archive, but when i change the MP3 for .WAV, the matlab command window shows a mistake. why? , how can i run the M-FILE with a .wav archive.
  Index exceeds matrix dimensions.
  Error in ==> pcm at 72
     samp_in(k) = m(k*Ts);

tank you

[qiguang miao]

 

[ganesh ramasamy]

fair

[Abel Valero]

I have the same problem. when I change the .mp3 file for a .wav file it produces a mistake, related with the index of the matrix in line 72

[yu sun]

 

[abas turki hamza]

good

[mrudula athi]

i haev this same problem of index exceeding matrix dimension..plz suggest..

[Eng FA]

hi

I wana help that how can i make a program for PCM on the matlab??

I did not know who can i start, i tried yours but nothing done
So can you please help me on that
Thank you :)

[Doddes Douddoussa]

hi
I have the same problem. I want to apply this code on a wav file but it produces a mistake, related with the index of the matrix in line 72.
Please help me to get a PCM code applied on the wav, I need this code my project at the end of study
thank you:)

[Peter Robert]

The index of the matrix problem occurs because your file doesn't have 2*Fs = 16000 samples in it (<2 seconds). I noticed other problems as well, like the error is divided with the number of samples, and the read wav file isn't necessarily sampled with 8kHz.
Uploaded a fixed implementation based on this one. After it has been reviewed you should be able to find it on this site.