You could try doing a bridge_pre_execute and play the sounds to each leg independently prior to the bridge. Check out these chan vars:
http://wiki.freeswitch.org/wiki/Channel_Variables#bridge_pre_execute_aleg_app
http://wiki.freeswitch.org/wiki/Channel_Variables#bridge_pre_execute_aleg_data
http://wiki.freeswitch.org/wiki/Channel_Variables#bridge_pre_execute_bleg_app
http://wiki.freeswitch.org/wiki/Channel_Variables#bridge_pre_execute_bleg_data

-MC

On Wed, Aug 29, 2012 at 4:24 AM, Dave Horton <daveh@beachdognet.com> wrote:
> Set api_on_answer to execute
> uuid_broadcast<
> http://wiki.freeswitch.org/wiki/Mod_commands#uuid_broadcast
> >
> which
> will let you pick which legs to play the recording to.
> You can pass in the UUID with ${uuid}
>
> -Avi
>
I tried this, and it worked.....sort of.  If I play the prompt the A leg it is fine -- caller hears the prompt, then is connected to called party.  If I play it to the B leg, however, the prompt does not seem to start playing at all until the B party actually starts talking, and then the prompt is played extremely choppy and slow.....it takes about 10 seconds to play a 4 second prompt.  Meanwhile, the caller and called party can't hear each other.  Any idea what is going on and how to fix it?  I am doing it in lua as follows:

session:execute("export","nolocal:jitterbuffer_msec=100") ;
session:setVariable("RECORD_STEREO","true") ;
session:setVariable("aleg_uuid",uuid) ;
session:execute("record_session", outfile) ;
session:execute("set","progress_timeout=60") ;
session:execute("set","call_timeout=120") ;
session:setVariable("hangup_after_bridge","true") ;
session:execute("bridge","sofia/normal_customer/${outdial}@${egress_gateway}") ;
--session:execute("bridge","{api_on_answer='uuid_broadcast " .. uuid .. " " .. this_call_is_being_recorded .. " " .. "bleg'}sofia/normal_customer/${outdial}@${egress_gateway}") ;


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