MP3WRITE and MP3READ

mp3 audio encoding/decoding

Description

Includes 2 functions to write and read MP3 files. It works like the commands WAVWRITE and WAVREAD.

1.- Just unpack in the toolbox folder under the MATLAB directory.
2.- Set the MATLAB search path to include that folder.

This version was made in MATLAB for WINDOWS only.

• Acknowledgements: This submission has inspired the following:; mp3read and mp3write
• MATLAB release: MATLAB 7 (R14)
• Other requirements: WINDOWS

[joakim brännström]

 

[irfan turk]

 

[Mahmoud Bagheri]

for me , its fantastic.

[Dave Robinson]

Works for me - ACE

[Sandeep Sanga]

nice!

[Murphy O'Brien]

Does exactly what it says on the tin! A very useful complement to wavread and wavwrite.

[marcin marcin]

 

[jeeva rajan]

fine
for modified code contact me
3/2 ramachandra st
off north usman road
t.nagar chennai-17

[jeeva rajan]

3/2 ramachandra st
off north usman road
t nagar
chennai-17

[Ely Tejeda]

 

[Junjie Liu]

 

[Johnson Yeh]

 

[saifudeen ar]

 

[vinay dev]

nice

[Matevz Leskovsek]

Nice work. Very well commented!

[jaydeep dhole]

very helpful

[Victor Colme]

nO Entendì una mierda!!!

[tran huy dong]

 

[Nanno Mulder]

I cannot open the .zip file, so low marks for the packaging. No comments on the contents

[Jurijs Jonass]

Thanks Alfredo for nice job!

[Rubén Sánchez]

 

[albert crespo]

 

[Joao Valiati]

 

[Somendra Misra]

 

[sathish Reddy]

 

[laeeqsdq neelofer]

 

[Yohn Eduin Parra]

Good aplication. I need more time to evaluation and qualify to.

[René Gonález]

It's a very good rutine

[guan liang]

very good

[Juan Carlos Ruchesi]

very good

[shu tong]

 

[mauricio peña]

 

[huang baozhu]

when i use mp3write ,it say mp3buffer is not too big enough

[Andy Clark]

Great bit of code! Now I can analyse mp3's in matlab.

[Jose Uy]

Why does it output 2 columns? Is one column the time index and the other is the amplitude?

[famous martin]

very very good

[per g]

2 columns = stero sound? Haven't tried the toolbox, just guessing!+

[Mara M]

It seems the search path needs to be w/o blanks for it to work. Also there was one row in mp3write changing the path to a name which didn't work out (row 55: MP3FILE = strcat(pwd,'\',MP3FILE)).
Otherwise, great job.

[John Hughes]

Suggested code mod for the reader:
Line 42:
[stat,raw_info] = dos(['"',location,'\mpg123','"', ' -w ', tmpfile, ' ', '"',FILE,'"'])

By putting double-quotes around the pathname to mpg123, I've fixed the "can't handle blanks in the path" problem. Presumably a similar fix is needed for mp3write; I'll send it when/if I get there...

[John Hughes]

Fix for lines 54-70 of mp3write.m:

This allows one to use pathnames with spaces in them.

Note that the who thing fails if you give an ABSOLUTE pathname (like "C:/Matlab-stuff/mySong.mp3"), because the read/write routines expect only relative pathnames. I haven't tried to fix this part.

tmpfile = ['"', strcat(lame,'\temp.wav'), '"'];
MP3FILE = ['"', strcat(pwd,'\',MP3FILE), '"'];
ENCODING = num2str(ENCODING);
switch ENCODING
    case {'1'}
        cmd = ['"', lame,'\lame', '"', ' --quiet', ' ', tmpfile, ' ',MP3FILE];
    case {'2'}
        cmd = ['"',lame,'\lame', '"', ' --quiet', ' -b 128 ', tmpfile, ' ',MP3FILE];
    case {'3'}
        cmd = ['"',lame,'\lame', '"', ' --quiet', ' --abr 112 ', tmpfile, ' ',MP3FILE];
    case {'4'}
        cmd = ['"',lame,'\lame', '"', ' --quiet', ' -f ', tmpfile, ' ',MP3FILE];
    case {'5'}
        cmd = ['"',lame,'\lame', '"',' --quiet', ' -h ', ' -V ', tmpfile, ' ',MP3FILE];
    otherwise
        error('Encoding parameters not suported')
end

[Punit master]

remove your site & code from google
your code is pathetic

[Michael McGurie]

A MEX version of this program would give it a perfect score. Very useful for playing around with sound files.

[Luigi Rosa]

Very good. In mp3read.m the output variable "out" is unnecessary, probably introduced for debugging.

[hung duc]

I'm working in watermarking, but I don't understand clearly. So, I need some examples or Matlab code to simulate. Please help me

[palani natarajan]

information

[naimat khan]

i am the student of electrical engineering at uet peshawar

[sura mohamed]

i want another idea on voice project
i want to make a reaserch in sound
plssssssssssss

[Eric]

Can the MP3READ function be used to detect the frequency, tempo and rhythm of an mp3 file? Where are these values stored for retreval and comparison in the future?

[John Adcox]

Please fix the pathname issue that John Hughes mentioned earlier. His fix works so you will just need to upload a new file

[Deyan Dobromirov]

It worked 4 me its awesome guys :D Congrats to all!!

[Deyan Dobromirov]

Its awesome THANK U!

[Mohamad Zuhairi Ismail]

why i got this message?
i hope u can help me. tq in advance. ;]

??? Error using ==> wavread at 67
Cannot open file.

Error in ==> mp3read at 48
[Y,FS,NBITS] = wavread(tmpfile); % Load the data and delete temporary file

[Jun wan]

good

[chen xy]

I got the same error!
anyone can help me?
 [x,fs]=mp3read('windows.mp3');
??? Error using ==> wavread at 67
Cannot open file.

Error in ==> mp3read at 48
[Y,FS,NBITS] = wavread(tmpfile); % Load the data and delete
temporary file

[Arjen vd Kamp]

 

[Arjen vd Kamp]

If you have the error in line 48 of the mp3read then there probably is a space in the directory were you put the mp3read.m. For instance between Program and Files. Just put it in a folder without spaces and try again...

[Thanh]

This code is very good,but i can't run it. Everytime i try to run, Matlab always notifies:
??? Error using ==> wavread at 67
Cannot open file.

??? Error in ==> mp3read at 49
[Y,FS,NBITS] = wavread(tmpfile); % Load the data and delete
temporary file
So please show me what's the problem?

[Paulo Emmanuel]

same error here

??? Error using ==> wavread at 166
Out of memory. Type HELP MEMORY for your options.

Error in ==> mp3read at 48
[Y,FS,NBITS] = wavread(tmpfile); % Load the data and delete temporary file

Error in ==> AudioComp at 4
[y, Fs] = mp3read(gfile);

[Aakash]

 

[Oliver]

change line 42 in mp3read to

[stat,raw_info] = dos(['"' location,'\mpg123.exe"', ' -w ', tmpfile, ' ', '"',FILE,'"']);

[Mr Smart]

 

[Jacob]

To anyone getting the error "??? Error using ==> wavread at 67
Cannot open file.", I was getting the same, but once I moved all of the mpg123, mp3info, and lame files to the same folder as the program that was running them, it worked perfectly.