ESI GIGAPort DG - Manual (Page 24)

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This control panel is pretty simple.
However you should be careful with ‘System performance’ in Dithering menu.
You have to choose the bit-rate of your recordings in ‘Recording resolution’.
If your music file is 24bit recording and you're going to play it back via GIGAport's
16bit, you can use dithering to increase quality.
Also, you can choose four different system performance depends on your
computer’s efficiency.
Choosing ‘Highspeed’ and ‘Faster’ will bring fast processing.
But if your computer has low efficiency and you select ‘Highspeed’, it cause noise
problem. We generally recommend to you to select ‘Fast’ or ‘normal’.