[Asterisk-Users] echo tail stats

[Eric Bishop]

Wouldn't that large spike be the primary sound rather than the echo?

On 1/15/06, James Harper <james.harper at bendigoit.com.au> wrote:
>
>  Here's the graph of the echo coefficients I grabbed from a x100p card on
> my asterisk server. If my interpretation is correct, it shows that most of
> the echo comes in at about the 28th tap, and assuming a sample rate of
> 8000hz, that would be about 3.5ms.
>
>
>
> Will that tell you the sort of things you need to know?
>
>
>
> Thanks
>
>
>
> james
>
>
>   ------------------------------
>
> *From:* asterisk-users-bounces at lists.digium.com [mailto:
> asterisk-users-bounces at lists.digium.com] *On Behalf Of *Eric Bishop
> *Sent:* Sunday, 15 January 2006 11:06
> *To:* Asterisk Users Mailing List - Non-Commercial Discussion
> *Subject:* Re: [Asterisk-Users] echo tail stats
>
>
>
> Yes, plese do post it....
>
> On 1/15/06, *James Harper* <james.harper at bendigoit.com.au> wrote:
>
> I'm working on some code to be able to preload the echo cancellers (and
> obviously dump the data too, which I've already done). I should have a patch
> ready tonight or tomorrow.
>
>
>
> If you are interested I can attach a plot of the coefficients against time
> which might tell you the sort of thing you need to know if you could do it
> on your data. The image is only an 11k gif… would it be okay to post it to
> the list?
>
>
>
> James
>
>
>   ------------------------------
>
> *From:* asterisk-users-bounces at lists.digium.com [mailto:
> asterisk-users-bounces at lists.digium.com] *On Behalf Of *Eric Bishop
> *Sent:* Sunday, 15 January 2006 10:11
> *To:* Asterisk Users Mailing List - Non-Commercial Discussion
> *Subject:* [Asterisk-Users] echo tail stats
>
>
>
> Does anyone know how to determine the echo tail size (in ms) of a
> particular call?
>
>
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