Timecode Synchronization - Korg SoundLink DRS 1212 I/O Owner's Manual

Pci multi-channel audio interface

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Table Of Contents

Table of Contents

Troubleshooting

Card stops, audio squeals, or channels shift (Windows 95)

The 1212 I/O card relies on being able to transfer small amounts of data

across the PCI bus at regular intervals (roughly 12,000 times per second). If

other devices tie up the PCI bus for extended periods of time, this can

prevent the 1212 I/O from completing a transfer before the next scheduled

transfer.

If this happens, the audio stream will be corrupted. The audible effects of

this corruption will be manifested in one of the following ways:

a. The card may detect the condition and stop playback.

b. The audio channels may shift. For example, audio destined for the left

analog output may instead appear on ADAT channel 7.

c. A high pitch squeal may be heard in one or more of the outputs.

In our experience, most of these situations are the result of interactions

with video cards that tie up the PCI bus for extended periods of time. Some

possible solutions are listed below.

Try adjusting the acceleration settings of other devices on the PCI bus.

Try swapping the 1212 I/O with other PCI cards. In some instances

(depending upon the PCI BIOS of your PC), placing the cards in new

locations will change their assigned priorities on the PCI bus.

If you have a Matrox Millennium or Mystique video card, do the following:

If you are using another PCI video card, try installing the standard

Windows 95 VGA driver. If the problem goes away, then there is an

interaction with that card's video driver. If this is the case, contact the video

card's manufacturer. They may have an updated driver or a switch similar

to the Matrox above that addresses the problem.