Audio output FAQ

Question: OtsTurntables reports "Error initialising audio sub-system!". What does this mean?

Answer: You must have Direct X 5.0 or above installed on your system, and be running Direct Sound (VXD) or WDM drivers for your sound card. If your computer does not have both of these requirements, you should download the latest drivers for your soundcard, and or go to to download the latest Direct X version. If you are not sure if your computer meets these requirements, seek some advice from your computer supplier.


Question: The audio output sound warbles and/or pops. What can I do?

Answer: First thing to try is calibrating your sound if you are using the WDM driver type (does not apply to legacy mode).

To Calibrate the Audio Device:

- Open OtsTurntables.

- Click on the Output Configuration button.

- Click on the "Cal" button for the "ON AIR" output device

- Click on the "Help" button to understand how to optimize the buffering.

- Adjust the "Optimize the buffering" slider to suit your system.


I still can not get it to sound right, no matter where I put the calibration slider. What next?

Answer: You may have the choice of using the "legacy", "WDM", or "Compat" driver types. Try changing to the other available driver types:

- Open OtsTurntables.

- Click on the Output Configuration button. This will open the "Output Configuration" window.

- Click on SET, found on the top right hand side of the "Output Configuration" window, for the "ON-AIR" output device.

- Select the other driver types listed under the TYPE column and click on OK.


I have tried calibrating the WDM driver type, and accessing the other driver types, and neither have given me stable sound. What now?

Answer: Some hardware is designed poorly and will not function well with OtsTurntables. Sometimes this is simply due to the drivers installed, and by downloading the latest drivers for your soundcard, you can often alleviate any problems. To do this, go to your soundcard manufacturer's website, download and install the up-to-date drivers. This may take some trial-and-error to find out the best drivers for your system. If you do not feel comfortable with this, seek the assistance of your computer supplier.

Note: Some on-board soundcards are low quality products and have badly written drivers. You may find you have no success even after installing the latest drivers. If this is the case, then you may want to look at PCI or USB soundcard. It is highly recommended that this avenue is explored through a computer dealer so that testing with the OtsTurntables can be attempted before making a financial commitment.


I'm experiencing skipping when I run OtsTurntables. How do I avoid this?

Answer: There are many potential causes. Here are a few:

- Virus checkers running constantly in background. You could try turning them off.

- Poorly written printer/scanner drivers. Update them or change configuration settings.

- Running other memory intensive applications at the same time as CD Scratch. Don't run these type of applications at the same time.

- Being infected by a virus. Use a virus scanner to check your whole system.

- Windows 2000: Having the "menu effects" turned on will cause glitches. Switch them off under Display Properties in Control Panel.


I'm experiencing skipping when I open or close a window (Windows 2000). How do I stop this?

Answer:  If you are using Windows 2000 you will need to disable the Use Transition effects for menus and tooltips feature. This feature will cause skipping when you open or close a window.

How to disable Use transition effects for menus and tooltips (Windows 2000 only):

- Right-click on the Desktop.

- Click on Properties.

- Click on the Effects tab.

- Uncheck/Disable the Use transition effects for menus and tooltips.


Related Topics:

CD subsystem FAQ

Configuring the audio output device

How to calibrate an audio out device