Hey Clarence,

Control-Space Bar actually puts the transport into a Pause with Pre-Prime for 
instant playback. This is what that means:

If you have a large session, say, 24 tracks record enabled or even on an LE 
system, say, 16 tracks ready to record in QuickPunch mode, the system is going 
to allocate drive space, prepare voices, automation data (if there is any) and 
a few other things. If you simply start the recording or even playback, there 
will be a pause before the transport engages. This can vary from a second to 
several seconds if it's a particularly large session. In order to have a more 
immediate start to playback, it's possible to pre-prime the deck, as they say, 
for instant playback or recording. Pressing Control-Space Bar puts Pro Tools 
into this Pause mode. Simply pressing the Space Bar after that instantly starts 
playback. Further, Control-Command-Space Bar puts PT into Pre-Primed Record 
mode so pressing Space Bar after that instantly puts the Transport into record 
mode.

Pausing the transport, the way most people think of pausing something, is a bit 
different. Pro Tools has two main behaviors: 1. Is for the transport to 
remember the start position and, if the transport is stopped, it will keep 
resuming playback from the same start position unless that start position is 
specifically changed, and 2. Insertion following Playback which means that 
wherever you press the space bar, the transport will keep the insertion point 
there and, upon pressing space bar again, will continue playing from that 
location.

I would strongly suggest using the default method which is for the insertion 
point to not follow playback. Here's the reason. When you make a selection, 
pressing the space bar will play only the selected range. No matter how many 
times you press play, it'll only play the selected range. This is a good means 
to verify your selection range quickly without even having to look at the 
start, End and Length fields in the edit window. From there, one can cut, copy 
paste, etc. Now, if the insertion point follows playback, as soon as you play 
the selection, the selection is actually lost. It's very obvious to a sighted 
user but it can be confusing to a blind user.

Here are two things one can do for alternatives:

1. If you really want to get into that other mode where it just pauses when you 
hit the space bar, pressing Control-n toggles this playback mode and the 
preference is also in the Setups>Preferences dialog and is called "Insertion 
Follows Playback."

2. If the transport is engaged, and you find a spot you want to start playback 
from, simply pressing the down arrow will automatically populate the start 
field with the current transport value. In other words, if, while the transport 
is engaged, you press the down arrow at the 2 minute mark, the start field will 
now say "2:00:000" and if you press space bar, the transport will stop but, 
upon playback, will now start from the 2 minute mark.

Hopefully, that makes sense. Let me know if there's something that isn't clear.

Best,

Slau

On Jul 17, 2010, at 1:23 PM, clarence griffin wrote:

> I thought control + Space was to pause my project? Its not working. Is there 
> something I have to turn on in setup or something? I looked all over, and 
> didn't find anything.
> Thanks.
> 
> GF
> 
> 

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