[Asterisk-Users] Re: Milliwatt Analyzer available

[Juan Carlos Castro y Castro]

Could I use this to distinguish human voices from machine beeps and/or ambient noise etc, by (after a few adaptations) calling it a number of times on the same set of samples with some representative set of frequencies? Or is there a better, less CPU-torturing way to do that?

> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]] On Behalf Of
> Roger Schreiter
> Sent: Thursday, March 02, 2006 5:50 AM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: [Asterisk-Users] Milliwatt Analyzer available
>
> Hi,
>
> some days ago  we discused here the need for an analyzer for
> the 1000 Hz tone, as opposite application to Milliwatt.
>
> Here it is: Mwanalyze
> http://planinternet.net/download/voip/asterisk/app_mwanalyze.c
>
> It performs a Fourier analysis for a fixed frequency and
> tells the amplitude.
>
> The frequency is not limited to 1000 Hz, but can be passed as
> argument. The periode duration must be a mulitple of 0.5 ms,
> thus the valid frequences are: 2000 Hz, 1000 Hz,
> 666.666666667 Hz, 500 Hz, ...

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