🚀 go-pugleaf

On Wed, 17 Jul 2002 12:20:48 +0100, "Liam Mullane"
<STOPSPAM.lmullane@dairymaster.com> wrote:

>Anybody  got example code on detecting activity on LineIn

Do you mean an audio input? Look for code showing the
use of the waveIn* multimedia functions to receive audio
data. Then it's just a matter of examining the samples to
detect the condition you want.

"Liam Mullane" <STOPSPAM.lmullane@dairymaster.com> wrote in message
news:3d355327_1@dnews...
> Anybody  got example code on detecting activity on LineIn

I wrote some components to get the audio from linein. In particular, once a
second or so, you could example the TRecorder component's buffer and see if
there's anything in it. The components are at

http://www.wischik.com/lu/programmer/

and search the page for "AudioIn"

--
Lucian

Lucian, your components look great but you have to pardon my stupidity if I
ask what is the "source" property for all of your components?

-- 
Andrei
REMOVE_sezna2000@yahoo.com

"Andrei" <address@in.the.sig> wrote in message news:3d3de3c9$1_2@dnews...
> Lucian, your components look great but you have to pardon my stupidity if
I
> ask what is the "source" property for all of your components?

It's in the readme file, in the HELP directory :)

The TRecorder captures sound from waveIn.

The FFT takes the stuff from the TRecorder, and transforms it. That means
that you set the TFFT's "Source" property to point to the TRecorder.

The TSpectralView viz. takes stuff from the FFT, and visualises it. That
means that you set TSpectralView's "Source" property to point to the TFFT.


(all of these "Source" properties allow the components to work
automatically, without writing any code. You can do it manually instead if
you prefer.)

--
Lucian