Chapter 4. Utilisation de Kwave

Voici une petite capture d'écran de la fenêtre principale de Kwave, qui vous donnera une première impression sur le programme...

Screenshot of the Main Window

Memory Setup

When using Kwave for the first time, you should go to the memory setup dialog an modify the settings to be suitable for yor needs and the installed memory of your computer. You can reach it under OptionsMemory....

Screenshot of the Memory Setup Dialog

Kwave is able to use two types of memory: physical and virtual memory.

Physical memory is the memory (RAM) that is installed in your computer. You should limit the usage of physical memory to some reasonable size, as a rule of thumb, half of the installed memory should be ok. If you set the limit too high, Linux will take memory from other applications, which means that it swaps out memory of other programs to the harddisk (swap), which is rather slow. If you set the limit too low, you might lose some performance when working with big files, because you use less of the fast physical memory than you could.

If you enable virtual memory, Kwave is able to load and process files that are bigger than the amount of real installed physical memory. Kwave does this by using temporary files in a configurable directory, which is much faster and more cooperative to other applications than using the operating system's swapping. The directory that you configure should be on your local hard disk.