Microsoft KB Archive/140664

= Macintosh Multimedia: Troubleshooting Sound Problems =

Article ID: 140664

Article Last Modified on 7/23/2007

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APPLIES TO


 * Microsoft Ancient Lands for the Macintosh
 * Microsoft Art Gallery 1.0 for Macintosh
 * Microsoft Bookshelf 95 for Macintosh
 * Microsoft Cinemania 94 for Macintosh
 * Microsoft Dangerous Creatures 1.0 for Macintosh
 * Microsoft Encarta Encyclopedia 96 for Macintosh
 * Microsoft Music Central 97 for Macintosh
 * Microsoft Musical Instruments 1.0 for Macintosh
 * Microsoft Ultimate Frank Lloyd Wright for Macintosh
 * Microsoft Wine Guide 1.0 for Macintosh
 * Microsoft Wine Guide 1.0a for Macintosh
 * Scholastic's The Magic School Bus Explores the Human Body for Macintosh
 * Microsoft Bookshelf 96-97 for Macintosh
 * Scholastic's The Magic School Bus Explores the Ocean

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This article was previously published under Q140664



MACINTOSH kb3rdparty kbenv kbui kbmm kbhw kbtshoot kbprb kbhowto kbfaq



SUMMARY
This article discusses troubleshooting steps you can try when you have sound problems with any of the products listed at the beginning of this article.



MORE INFORMATION
Common areas to check when you troubleshoot sound problems include the following:

Sound Control Panel Setting
Verify that the Sound Control Panel volume is set to maximum. Also check the following:


 * 1) Open the Sound Control Panel.
 * 2) Select Sound In from the drop down menu.
 * 3) Press the Options button.
 * 4) Under Input Source, select both Internal CD and Playthrough.

Virtual Memory
Try running your Macintosh with virtual memory reduced or turned off.

To change the virtual memory setting, do the following:


 * 1) On the Apple menu, point to Control Panels, and then click Memory.
 * 2) For programs designed for the Power Macintosh, reduce the amount given to Virtual Memory to the lowest setting allowed. For non-Power Macintosh programs turn Virtual Memory off.
 * 3) Close the Memory control panel and then restart the computer.

Low Memory Situation

 * Free up available memory by quitting all other programs.


 * Reset your display to a different color depth monitor. For example, instead of running millions of colors, select 256 colors. You can change this setting in your Monitor Control Panel.


 * Allocate additional memory to the program.

To assign more memory to the program you are using:


 * Restart the Macintosh.
 * On the Apple menu, click About This Macintosh.
 * Note the Largest Unused Block entry.
 * Locate the program on your hard disk.
 * Click the program icon to select the program.
 * On the File menu, click Get Info.
 * Change the number next to Preferred (or Current) size, so this number does not exceed the number you noted in step 3 above.

Audio playback problems due to a low memory may affect all Macintosh models. However, Audio playback problems caused by hardware limitations are most common on Macintosh models utilizing a 20MHz 68030 processor or lower.

Extensions Conflict
Restart the computer with only the extension items the system needs to mount the CD-ROM drive and the extension items the product requires.

For additional information, refer to the product's Readme file for a list of required extension items.

Incorrect Version of Sound or Sound Manager
Check the version of Sound or Sound Manager that the program you are using requires, and validate that you have the correct version installed in your Extensions folder.

For additional information, refer to the product's Readme file.

Slow CD-ROM Drive
Check to ensure that all cables are connected correctly and that the CD-ROM drive is running optimally.

Apple Updates
There have been several reliability and performance enhancements added since System 7.5.3 that improve performance, particularly on launch and when switching between applications. If you already own System 7.5.3, these updates are available for download at no charge from the following Apple sites:

http://www.apple.com/

http://quicktime.apple.com/

http://www.apple.com/support/downloads/

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