Hello Anthony,
I just returned from a trip and I discovered the discussion. For months
(years...) I work on this problem and the best solution I've found in terms of
responsiveness is to use PlayCommand Agent X (see Jacqueline web site for that)
which controls the QuickTime synthesizer via AppleScript. I have a (Mac)
prototype in progress (for iPad in final) called "Exapad" which is based on the
principles you have mentioned and which uses "MouseDown" to start the sound and
"MouseUp" to stop it. Hare are scripts extremely simplified (because in
application chords can be played and arpeggiated) :
global vgVolumeGénéral,vgTimbre -- settings with slider and menu
on mouseDown
hsJouerNotes the cpNoteBase of the target -- custom property of the note or
sound (target = image or button)
end mouseDown
on mouseUp
hsArrêtNotes the cpNoteBase of the target
end mouseUp
private command hsJouerNotes vpFondam
SBstartNote vgTimbre,vpFondam,vgVolumeGénéral
end hsJouerNotes
private command hsArrêtNotes vpFondam
SBstopNote vgTimbre,vpFondam
end hsArrêtNotes
command SBstartNote vpI,vpP,vpV
do ("tell application"&"e& "PlayCommand Agent X" "e && "to" && "play
note instrument" && quote & vpI & quote && "pitch" && vpP && "velocity" && vpV)
as AppleScript
end SBstartNote
command SBstopNote vpI,vpP
do ("tell application" && quote & "PlayCommand Agent X" & quote && "to" &&
"play note instrument"&& quote & vpI & quote && "pitch" && vpP && "velocity" &&
0) as AppleScript
end SBstopNote
No latency. Percussion sounds possible...
I stop because I have no more place...
Bon souvenir de Paris
René
Le 16 nov. 2010 à 05:59, Anthony Howe a écrit :
> Hiya Folks,
>
> Further to our recent emails on this...
>
> I've now just implemented the same functionality using keyboard on keyDown
> events for each sound instead of the mouseDown event with startling
> (positive) results. (thanks Jacqueline for suggestion!)
>
> It seems that the keyDown event arrives into LC much faster than a mouseDown
> event does for the purpose of triggering audio on a real time basis. Slightly
> less responsive on WinXP, but fantastic on OSX.
>
> I've even been able to nest the keyDown handler at the card level and run a
> conditional before triggering the sound in order to get the right one,
> without affecting playback too much.
>
> Whilst this is still not an ideal UI position to be in, and will limit the
> features we can provide onscreen, at least it's clearer that the issue
> probably revolves around considerable internal latency with capture of the
> mouseDown event, in comparison to its 'keyDown' counterpart.
>
> If there's any way of tweaking the mouseDown event speed into LC, (assuming
> that IS actually the problem) it'd be great to provide this dual benefit to
> our users.
>
> Looks like we may be able to avoid the flash/swf implementation by using
> keyboard events directly into LC though.... so a solution seems close.
>
> Any thoughts based on that discovery folks?
>
> Cheers,
>
> A._______________________________________________
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