asterisk users - Dec 2011 - PITCH_SHIFT()

This list is a great resource and I thank all the Asterisk Guru's who
actively contribute to it.

In Leif Madsen's AstriCon 2010 talk titled "5 Things You Didn't
Know Asterisk Could
Do<https://docs.google.com/viewer?a=v&q=cache:hCDfIk4pvngJ:leifmadsen.com/sites/default/files/AstriCon%25202010%2520-%25205%2520Things%2520You%2520Didn't%2520Know%2520Asterisk%2520Could%2520Do.pdf+asterisk+dialplan+func+PITCH+SHIFT&hl=en&gl=us&pid=bl&srcid=ADGEEShzSRqJl26lEybK-TvxHL4hKQrd-mBpAapRV6eyI8ST0E5AosCEqp2bm_h5eORZFwwEZDqzEKpT9Fg244nkCgX4BDEGL6bik4Non5_fgm62fzrBxyIXjm1hnqJx2-yGyVlbdXKd&sig=AHIEtbQ2NyYajUzeJshmWKAgZEi0RprNjQ&pli=1>"
he
mentions that the PITCH_SHIFT() function is designed to be used dynamically
and can change the pitch of a channel on the fly using features.conf. Can
someone provide me with any information of how this would be accomplished
for dynamic use? I'm familiar with the dialplan syntax use examples such as:

exten => 1,1,Set(PITCH_SHIFT(tx)=highest); raises pitch an octave
exten => 1,1,Set(PITCH_SHIFT(rx)=higher) ; raises pitch more
exten => 1,1,Set(PITCH_SHIFT(both)=high) ; raises pitch

and so forth, but don't understand how these functions would be called
dynamically from features.conf.

any help is greatly appreciated...
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On 20/12/11 01:15 AM, John Jolly wrote:
> In Leif Madsen's AstriCon 2010 talk titled "5 Things You
Didn't
> Know Asterisk Could Do
>
<https://docs.google.com/viewer?a=v&q=cache:hCDfIk4pvngJ:leifmadsen.com/sites/default/files/AstriCon%25202010%2520-%25205%2520Things%2520You%2520Didn't%2520Know%2520Asterisk%2520Could%2520Do.pdf+asterisk+dialplan+func+PITCH+SHIFT&hl=en&gl=us&pid=bl&srcid=ADGEEShzSRqJl26lEybK-TvxHL4hKQrd-mBpAapRV6eyI8ST0E5AosCEqp2bm_h5eORZFwwEZDqzEKpT9Fg244nkCgX4BDEGL6bik4Non5_fgm62fzrBxyIXjm1hnqJx2-yGyVlbdXKd&sig=AHIEtbQ2NyYajUzeJshmWKAgZEi0RprNjQ&pli=1>"
he
> mentions that the PITCH_SHIFT() function is designed to be used
> dynamically and can change the pitch of a channel on the fly
> using features.conf. Can someone provide me with any information of how
> this would be accomplished for dynamic use? I'm familiar with the
> dialplan syntax use examples such as:
>
> exten => 1,1,Set(PITCH_SHIFT(tx)=highest); raises pitch an octave
> exten => 1,1,Set(PITCH_SHIFT(rx)=higher) ; raises pitch more
> exten => 1,1,Set(PITCH_SHIFT(both)=high) ; raises pitch
>
> and so forth, but don't understand how these functions would be called
> dynamically from features.conf.
You'd just create the application_map as documented in features.conf and 
then apply the PITCH_SHIFT() function to whichever channel you want. 
Untested, but should look something like:

pitch_up_them => 3*,peer/both,Set(PITCH_SHIFT(tx)=high)

-- 
Leif Madsen
http://www.oreilly.com/catalog/asterisk