Quick recommendation:

• set Signalyze's overall program memory to 16M minimum, 16M preferred
• set Signalyze's calculation memory to 4M and signal memory to 12M

How much memory you should give Signalyze depends two things:

1. how much memory your machine has available
   • how do I tell how much memory my Mac has?
   • how can I increase how much memory my Mac has?
2. what you will be doing in your work sessions.

Signalyze comes with the overall memory set at 2,000K minimum, 4,000K preferred. This is fine for many simple signal analysis tasks.

Give Signalyze more memory if you will:

• have many signals open at once
• work with exceptionally large signal files (i.e. long signals; signals sampled at high rates)
• be cutting and pasting between signals
• be performing several complex transformations on signals
• be drawing and printing full-screen spectrograms

Also give Signalyze more memory if you are experiencing difficulties, especially if you encounter out-of-memory error messages and/or mysterious crashes.

Large-screen displays in particular can require substantially more memory. If you are using a full- or two-page screen (a single or a double portrait), you may want to increase your Calculation Memory to as much as 1 Mb. You will therefore need to set the overall program memory higher as well.

The more memory you give Signalyze, the faster and more reliable it will be. An overall memory setting of 16M is probably optimal; anything more is most likely overkill. In addition, make sure that you leave your Mac's System plenty of memory to work with as well--make sure that a minimum of 500K is not assigned to any program on older machines, 1M for PowerMacs and Macs running OS 9.