[asterisk-users] PITCH_SHIFT()

[Leif Madsen]

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