As a general rule, when you are recording (and particularly when you're recording over dubs),
you want to keep the H/W Buffer Size as low as possible. Low buffer size equals lower latency
(or delay between what you play and when you hear it). Higher buffer size equals higher latency,
meaning a delay between what you play and when you play it.
If your system struggles with processing, you may find that you need to increase the buffer size
when you're mixing and mastering, and you can put that extra processing power to use by running plug-ins.
But i would recommend having at minimum 2gb of ram.
To adjust the hardware buffer size in Pro Tools:
1. Choose Setups --> Playback Engine. The Playback Engine dialog box opens.
2. Select the setting that you want from the H/W Buffer Size drop-down list.
3. Click OK to accept the setting and close the dialog box.
