Help with Silence Detector

[cjguajardo]

Hi, I'm making a Silence counter for a personal project, the main idea is count the silences from a monotone sound captured by cellphone mic (or a audio file).
My problem is just i don't know how to recognize the silence in the stream.

Is there any other form to get the silences on an audio stream?

This project is mainly for my Nokia C5.

Well thanks in advance.

[hartti]

Sorry, cannot help you in detecting the silent periods.

One related note though. In general in Java ME it is not possible to start reading/analyzing the recorded audio stream, unless you stop recording that stream (that used to be a problem in the past and and I haven not heard that the implementations have changed in that regard - I might wrong though..)
So you need to record for a short period of time, stop recording, start analyzing that recorded stream while you start recording a new piece of audio in another thread.

Hartti

[cjguajardo]

So you need to record for a short period of time, stop recording, start analyzing that recorded stream while you start recording a new piece of audio in another thread.

That is the idea, sorry i didn't specify much about.
The idea is record a short piece about 10 and 30 seconds, and then analize the recorded audio for search two silences.

[hartti]

Ok, just wanted to make sure that you are not expecting to be able to analyze the stream on-the-fly :-)

Hartti

[cjguajardo]

I'm trying to find a way, i've been searching on the web, but i didn't get it.
There are many threads on the web with the same question and no solution.
I found a few code line that i don't know what means, because the code is not complete, and i don't know in which form was readed the file. I tried to read the file for myself, trying many forms, but it appears some like random data.

There is a form, because exists applications that have this functionality, but i wonder if it's very difficult to implement or what??


So if somehow knows the answer to my question, please tell me how to do it, i don't expect that resolve all the problem, but i want to know how to recognize silence on a monotone wav file.

Thanks.

[cjguajardo]

there is a way to read a wav file and from the data obtained extract or find peaks or silences?? or audio level