Roland SC-88 Pro Bedienungsanleitung PDF herunterladen (Seite 16)

How do Maps Work?

If you have ever used a spread sheet program that allows you to use to combine several similar

spread sheets on different “pages,” then you have a picture of Maps. It is like having a

spreadsheet with 128 rows and 128 columns. You could then fill in some of the cells of the

Spreadsheet-55 placing SC-55 sounds in a certain row and column based on its patch number

and its variation number.

That gives a good picture of how the sample memory in the SC-55 is “mapped” out. As we

move to the SC-88, we decide to change the spreadsheet from 1 page to 3 pages. We take the

original SC-55 page from the older spreadsheet and make it page 1. Then we add a whole new

page filled with new sounds and call it page 2. We then add a third page but we leave it empty.

We call it page 0. We then make certain the pages are in order from page 0 to page 2.

We fill page 0 with formulas. Each formula allows that cell to point to any other page based on

the value of a “page 0” variable. We then make the variable equal 2 by default for users of

Spreadsheet-88. Now page 0 points to page 2 and the two pages appear to be identical. We

then tell people to never use page 2 just look at page 0. (HINT: this is bad advice.)

Then we create the Spreadsheet-88 Pro and add a 4th page to the spreadsheet and call it page

3. We also change the “page 0” variable so that page 0 will always point to page 3 by default.

We also tell users of Spreadsheet-88 Pro to not use page 3, just use page 0. (HINT: bad

advice gets even worse.)

This is a picture of Maps in the Sound Canvas family. The SC-55 uses a spreadsheet with a

single unnamed page. The SC-88 uses a spreadsheet with 3 pages named 0, 1 & 2. And the

SC-88 Pro uses a spreadsheet with 4 pages named 0, 1 ,2 & 3.

The way the “page 0” variable works for the SC-55 is that you can give it a page number but it

always ignores you. You say, “Page 3,” and it gives you its only page without a hint of difficulty.

You say, “Page 0,” and it gives you its only page with just as much ease.

To make these maps work for us we want to be consistent in avoiding page 0. What if when we

want an SC-55 sound we tell each spreadsheet, “Page 0.” They all obey but obey differently.

Each one is pointing to its native page. We say, “Page 1.” They all obey. This time its perfect

they are all displaying the exact same page.

When we want SC-88 sounds we tell each spreadsheet, “Page 2.” They all obey. But the

SC-55 is the only one using the wrong page. That is as good as it gets because that is the only

page the SC-55 has. But the SC-88 and SC-88 Pro are on the exact same page.

When we want SC-88 Pro sounds we say, “Page 3.” Each Sound Canvas again obeys.

However, the SC-55 is still stuck on its only page. The SC-88 will have a different reaction

depending on what model it is because it has no page 3. But the SC-88 Pro and the 4th

generation Sound Canvas not yet available will display the exact same page. Backward

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Roland SC-88 Pro Bedienungsanleitung Seite 16