upload wav file

2011 10 28
1 个回答
4 次查看（30 天）

0 个投票

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

7 个评论
显示 5更早的评论 隐藏 5更早的评论

Honglei Chen
Honglei Chen 2011-10-28
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
Padma 2011-10-28
I have a file in .wav form. Yes, i want to read them and use them to compute time delay.
Walter Roberson
Walter Roberson 2011-10-28
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
Padma 2011-10-28
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
Honglei Chen 2011-10-28
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
Sandhu 2011-10-28
is both signals are with same length ????
Sandhu
Sandhu 2011-10-28
if so, this will help you.
http://www.mathworks.de/matlabcentral/newsreader/view_thread/256986

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Sandhu
Sandhu 2011-10-28

1 个投票

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

4 个评论
显示 2更早的评论 隐藏 2更早的评论

Padma
Padma 2011-10-28
I am new to matlab, just started using it since yesterday. could you please explain the first two lines in more detail.
Honglei Chen
Honglei Chen 2011-10-28
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
Padma 2011-10-28
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
Jan 2011-10-28
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")

请先登录，再进行评论。

类别

在 帮助中心 和 File Exchange 中查找有关 Audio I/O and Waveform Generation 的更多信息

标签

提问:

Padma
Padma
2011-10-28

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by