Hi Owen,
i had some time to check out your single deck control (r2350) and would like to 
give some feedback.

My Specs:
Macbook CD2 1,83Ghz 2GB Ram
OSX 10.5.8
Traktor Scratch Vinyl
M-Audio FW 410
Latency 5ms

Crash:
* Start vinyl, start Mixxx and double-click on track in library to load in 
Player 1-->Crash

Sound:
* Artefacts when moving record slowly, tapping on record or hit the brake
* Heavy Distortion (like reverb) when moving the vinyl if "Pitch independent 
time stretch" is activated in preferences,
  goes along with frequent CPU spikes ( 80%-->140% CPU CoreDuo2)

Vinyl-control: 
* "Play" button reflect its current state only sometimes,triaged with 
Pitchfader /BPM Display /Pitch Rate not showing changes
  If so, the track sometimes skips some seconds .
* When using a skin with Hotkeys, the Hotkeys are fired twice , first on Button 
down, second on Button up
* When using a skin with Hotkeys, the "Hotcues preview the Cue when the player 
is stopped" feature does not work anymore
* End-of-record & Needle skip warning does not work

GUI:
* Would be nice to have a Keyboard shortcut to activate the Vinyl Control 2 , 
same for Vinyl Mode   
* "Trancer-DJO-3" skin.xml : Line 8 (c&p error), Line 1047-1056 (obsolete since 
v1.8)
* Rectangle around the track area overlays all other infos which result in 
wrong tooltips 


Some general Questions:
* Is it possible to skip to the beginning of a track when dropping the needle 
on the records` lead-In?
* Is it possible to scroll trough the library when spinning the record 
fore/back on the records` scroll zone?
  And then to play the selected track with placing the needle to the play zone?
* Is it possible to have a kind of scratch mode? 
  If i use the crossfader in ABS/REL Mode the signal is cutted and the track 
stops playing for that moment.
  In CONST mode the tracks does not care either.
* Is your "looking for skinname-fullscreen when activating fullscreen mode" 
patch already included?


Keep up the good work,
jus


On 4 Mar 2010, at 04:12, Owen Williams wrote:

> I made some little hacks to get single deck control working in my
> lp:~ywwg/mixxx/features_xwax branch.  If you select single deck mode,
> mixxx will use the first deck device to control both tracks.  It's up to
> the DJ to enable and disable the control mode either through the menus
> or with midi.  For some reason I'm not seeing mixxx show up in my midi
> list any more, so I haven't been able to test the midi control.  It was
> working before, though.
> 
> I've also added the skin that I use, "Trancer-DJO-3" to the tree.  That
> skin has the UI elements you'll need to make vinyl control useful.  This
> includes:  a border around the track area that indicates vinyl control
> -- green for OK, orange for end-of-record warning (it blinks!), and red
> for needle skip.  There's also a button that toggles between the vinyl
> control modes, ABS, REL, and CONST.  
> 
> CONST is "constant mode," which keeps the track going at whatever speed
> it was playing at when you switch to that mode.  This mode is used for
> needle repositioning.  When the needle reaches the end of the record
> (which happens with long tracks), mixxx automatically goes into CONST
> mode so the DJ can reposition the needle without causing the music to
> stop.  The DJ can then switch to REL mode to continue.
> 
> Now that the tree is basically feature-complete, it's time to whack it
> with a stick and see what shakes loose.  There's already a crasher I
> mentioned in another email, and there's certainly other things lurking
> in there to be found (like, you're in single deck mode, 2nd deck
> enabled, then turn off single deck mode -- most likely bad things will
> happen).
> 
> thanks,
> Owen 
> 
> 
> 
> 
> 
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