Re: tone detection

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https://github.com/rabitt/pysox/issues/117#issuecomment-840093466

If you look at the above 1st just to detect what is current noise I sample ‘silence’ max amplitude and that and a bit are used for dtections.
Don’t use the silence split just create your own splitting and writing to /tmp
Also like someone said put a bandpass around pip frequency to further its prominence and then strip out from silence with markers of position in original.

Stuart

 

Sent from Mail for Windows 10

 

From: Jan Stary
Sent: 30 May 2021 16:46
To: sox-users@xxxxxxxxxxxxxxxxxxxxx
Subject: Re: tone detection

 

On May 30 09:53:04, jeffares.robert@xxxxxxxxx wrote:
>
> On 30/05/21 4:48 am, Jan Stary wrote:
> > But perhaps you could use the pips as the silence/nonsilence
> > cutting point - surely the pips are at very regular intervals.
>
>
> Exactly what I want to do.

No.

> They are 1kHz;

What I propose ignores the pip frequency.

> 5 of 100ms and one of 500ms

And how long is the silence between them?

        Jan


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