upload wav file

Hi

   In order to upload a wav file, I think I should be using the wavread command. I tried using that, but it results in an error. I tried using,

y = wavread('C:\Users\Admin\Desktop\audacity\Audacity 1.3 Beta (Unicode)\prompts')

The error says, "invalid wav file".

I need to upload two files which I have recorded and find out the delay between them.I have figured out how to find delay by considering sample waves, but not how to upload the files and then calculate the time delay. Could someone please help with uploading the files and then tell me how to use them normally like any waves generated in the matlab?

Thanks in advance

[Honglei Chen]

I'm not sure what you mean by 'upload'. Do you mean you want to read them? Also, it seems to me that 'prompts' is a directory, not really a filename. Do you have a prompts.wav?

[Padma]

I have a file in .wav form. Yes, i want to read them and use them to compute time delay.

[Walter Roberson]

Is "prompts" a directory or is it a file in .wav format that somehow was created without any extension? Or did you mean

y = wavread('C:\Users\Admin\Desktop\audacity\Audacity 1.3 Beta (Unicode)\prompts.wav')

[Padma]

it is a recorded sound file in .wav format. i realise now the path is wrong. My question is that i have two wav files and i want to read them to matlab.

[Honglei Chen]

If you have two files, just use wavread with each one of them, you will get two signals in the workspace. Just make sure you do not use the same variable name for both of them.

[Sandhu]

is both signals are with same length ????

[Sandhu]

if so, this will help you.

http://www.mathworks.de/matlabcentral/newsreader/view_thread/256986

Answer 1

[Sandhu]

i hope this may help u.

[FileName,PathName] = uigetfile('*.wav');
PathOriginal=sprintf('%s%s',PathName,FileName);
[xt,fs]=wavread(PathOriginal);

from here manage ur code. here xt is lenth of signal and 'fs' is sampling rate of wav format. and it is common for all wav formats : its value is 44.1k

[Padma]

I am new to matlab, just started using it since yesterday. could you please explain the first two lines in more detail.

[Honglei Chen]

Just give it a try in MATLAB, it opens a gui and you can select a file. Then you have the path to your file in PathOriginal variable.

[Padma]

in the second statement,what is it exactly doing, is it concatenating the existing path with my .wav file? please correct me if i am wrong.

[Jan]

Matlab's documentation is a high quality source of explanations:

Type this in the command window:

help uigetfile

doc uigetfile

(and the same for "sprintf" and "wavread")