DOCUMENT:Q106549  11-DEC-2001  [homemm]
TITLE   :Compressed Audio Doesn't Play on Sound Blaster Card
PRODUCT :Microsoft Home Multimedia Titles
PROD/VER::1.0,1993 edition,1994 edition,1995 edition,2.0
OPER/SYS:
KEYWORDS:kb3rdparty kbmm kbsound kbtlckbfaq

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The information in this article applies to:

 - Microsoft Ancient Lands for Windows, version 1.0 
 - Microsoft Art Gallery for Windows, version 1.0 
 - Microsoft Bookshelf '95 for Windows 95 
 - Microsoft Bookshelf 1996-97 for Windows 
 - Microsoft Complete Baseball for Windows, 1994 edition (see below) 
 - Microsoft Complete Gardening for Windows, version 1.0 
 - Microsoft Creative Writer for Windows, versions 1.0, 2.0 
 - Microsoft Dangerous Creatures for Windows, version 1.0 
 - Microsoft Dinosaurs for Windows, version 1.0 
 - Microsoft Encarta 96 Encyclopedia for Windows 
 - Microsoft Encarta for Windows versions 1993 edition, 1994 edition, 1995 edition 
 - Microsoft Encarta 97 Encyclopedia for Windows 
 - Microsoft Encarta Encyclopedia 97 Deluxe for Windows 
 - Microsoft Encarta World Atlas for Windows, 1997 World English Edition 
 - Microsoft Explorapedia series: World of Nature for Windows, version 1.0 
 - Microsoft Fine Artist for Windows, version 1.0 
 - Microsoft Isaac Asimov's The Ultimate Robot for Windows, version 1.0 
 - Microsoft Julia Child: Home Cooking with Master Chefs for Windows, version 1.0 
 - Microsoft Multimedia Mozart for Windows, version 1.0 
 - Microsoft Multimedia Schubert for Windows, version 1.0 
 - Microsoft Multimedia Strauss for Windows, version 1.0 
 - Microsoft Multimedia Stravinsky for Windows, version 1.0 
 - Microsoft Musical Instruments for Windows, version 1.0 
 - Microsoft Reader's Digest Complete Do-It-Yourself Guide for Windows, version 1.0 
 - Scholastic's Magic School Bus series: Explores the Human Body for Windows, version 1.0 
 - Microsoft SoundBits (all collections) 
 - Microsoft Wine Guide for Windows, version 2.0 
 - Microsoft World of Flight for Windows, version 1.0 
 - Microsoft Explorapedia series: World of People for Windows, version 1.0 
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SYMPTOMS
========

When you attempt to play a compressed sound clip on a computer using a Creative
Labs Sound Blaster 16 or Sound Blaster 16 ASP, or a Media Vision or Jazz sound
card in Sound Blaster emulation mode, you may experience one or more of the
following symptoms:

 - The sound clip stutters during playback.
 - You hear loud static instead of the sound clip.
 - You do not hear any sound.
 - The sound clip playback is twice as fast as normal.
 - The computer stops responding (hangs).
 - Microsoft Windows abruptly quits to the MS-DOS prompt.
 - You receive an error message similar to one of the following error messages:

   General Protection Fault
   No ROM Basic
   Memory Parity Error
   Segment Load Failure


In addition, you may not be able to play a sound clip in Dinosaurs, but you are
able to play video clips, you may not be able to play pronunciations in
Bookshelf and Encarta, and you may not be able to play sound clips in Musical
Instruments.

CAUSE
=====

This behavior can occur if your computer cannot properly use the 16-bit Direct
Memory Access (DMA) channel on the Sound Blaster 16 or Sound Blaster 16 ASP
sound card.

RESOLUTION
==========

To resolve this issue, change the sound card settings to use single-mode DMA. To
do so, use the appropriate method for your version of Microsoft Windows and your
version of the Sound Blaster drivers.

NOTE: When you disable 16-bit DMA, you do not reduce the quality of sound
playback or disable playback of 16-bit sound clips


Windows 95/98 Drivers
---------------------

For information about how to change Sound Blaster 16 DMA settings on a Microsoft
Windows 95/98-based computer running Windows 95/98 sound drivers, please see the
following article in the Microsoft Knowledge Base:

   Q136675 Changing SoundBlaster 16 HDMA Setting in Windows 95

Windows 3.1x Drivers
--------------------

For information about how to change Sound Blaster 16 DMA settings on a Microsoft
Windows 3.1x-based computer running the Sound Blaster version 3.02 or later
sound driver, please see the following article in the Microsoft Knowledge Base:

   Q124869 Software Reconfiguration of SoundBlaster 16 Hardware Settings

If the version of the Sound Blaster driver on your computer is less than 3.02,
contact Creative Labs to obtain the latest version of the Sound Blaster 16 sound
driver for Windows 3.1x.

Older Windows 3.x Drivers
-------------------------

To change Sound Blaster 16 DMA settings on a Windows 3.1x-based computer running
an older version of the Sound Blaster sound driver, follow these steps:

Change the DMA settings in each of the following locations:

 - The Drivers dialog box in the Windows Control Panel
 - The Sbconfig.exe configuration program included with the Sound Blaster cards

To change the settings, do the following:

1. In the Main Group in Program Manager, double-click Control Panel.

2. Double-click Drivers.

3. Double-click the Sound Blaster 16 Wave/Midi driver.

4. Under the HDMA option, click Use DMA.

5. Click OK, and then click Do Not Restart Windows Now.

6. Close Control Panel.

7. On the File menu in Program Manager, click Exit Windows.

8. At the MS-DOS prompt, type "cd\sb16" (without the quotation marks), and then
   press ENTER.

9. At the MS-DOS prompt, type "sbconfig.exe" (without the quotation marks), and
   then press ENTER.

10. Follow the instructions on the screen to configure and test the following
   settings:

   +----------------------------------+
   | Setting          | Value         | 
   +----------------------------------+
   | Base I/O port    | Autoscan      | 
   +----------------------------------+
   | MidiPort address | Autoscan      | 
   +----------------------------------+
   | DMA interrupt    | Current       | 
   +----------------------------------+
   | 8-bit DMA        | Current       | 
   +----------------------------------+
   | 16-bit DMA       | Use 8-bit DMA | 
   +----------------------------------+

   When you finish making these changes, the Sbconfig program restarts your
   computer.

   NOTE: For more information about how to use the Sbconfg.exe program, please
   see your Sound Blaster 16 user's manual.

Manually Changing Sound Blaster DMA Settings
--------------------------------------------

To manually change the Sound Blaster DMA settings on a Windows 3.1x-based
computer, follow these steps:

1. On the File menu in Program Manager, click Run.

2. In the Command Line box, type "sysedit" (without the quotation marks), and
   then click OK.

3. In the Autoexec.bat window, change the value of the H parameter on the Set
   Blaster line to match the value of the D parameter.

4. If you use a Sound Blaster 16 or Sound Blaster 16 ASP card, follow these
   steps:

   a. In the Config.sys window, change the value of the H parameter on the
      Device=C:\Sb16\Ctsb16.sys line to match the value of the D parameter.

   b. In the System.ini window, change the value of the HDMAChannel= line in the
      [Sndblst.drv] section to match the value of the DMAChannel= line.

5. If you use a Media Vision sound card configured to emulate a Sound Blaster 16
   sound card, follow these steps:

   a. In the Config.sys window, change the value of the H parameter on the
      Device=C:\<folder>\Mvsound.sys line to match the value of the D
      parameter, where <folder> is the folder in which the Mvsound.sys
      file is located. Typically, this is the Proaudio, Mvision, Prostudio, or
      Proas folder.

   b. In the System.ini window, change the value of the HDMAChannel= line in the
      [MVPROAUD.DRV] to match the value of the DMAChannel= line.

6. If you use a Jazz sound card configured to emulated a Sound Blaster 16 sound
   card, follow these steps:

   a. In the System.ini window, modify the value of the DMAChannel2= line in the
      [Jazz.drv] section to match the value of the DMAChannel1= line.

   b. In the Config.sys window, change the value of the E parameter on the
      Device=C:\<folder>\Jazz.sys line to match the value of the D
      parameter, where <folder> is the folder in which the Jazz.sys file
      is located.

7. On the File menu, click Exit.

8. When you are prompted to save changes, click Yes.

9. Restart the computer.

MORE INFORMATION
================

This issue only occurs when you run a program that uses compressed sound.
Because of the complicated use of memory that occurs when the computer
decompresses a sound clip at the same time that it plays it. Many multimedia
programs attempt to play a compressed audio clip when you start them.

The Sound Blaster 16 or Sound Blaster 16 ASP sound cards use two Direct Memory
Access (DMA) channels: one for 8-bit memory access and one for 16- bit memory
access.

Sound Blaster 16 sound cards can use the following DMA settings:

 - 8-bit (DMA): 0, 1, 2, or 3
 - 16-bit (HDMA): 5, 6, or 7

The third-party products discussed in this article are manufactured by vendors
independent of Microsoft; we make no warranty, implied or otherwise, regarding
these products' performance or reliability.

For information about how to contact Creative Technology, Ltd., query in the
Knowledge Base for the following article:

   Q65416 Hardware and Software Third-Party Vendor Contact List, A-K


Additional query words: multimedia multi-media silent doesn't play effects narration speech pronunciation sb16 sb msacm choppy black screen hang msb audio win95 win98 wm_writer wm_artist mmtitles allmmprods

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Keywords          : kb3rdparty kbmm kbsound kbtlc kbfaq
Technology        : kbHomeProdSearch _IKkbbogus kbHomeMMsearch kbEncartaSearch kbGamesSearch kbZNotKeyword kbZNotKeyword2 kbKidsSearch kbBookshelfSearch kbSoundBitsSearch kbBaseballSearch kbEncartaEncycSearch kbAncientLands kbCreativeWriter100 kbCreativeWriter200 kbMMStrauss kbMMSchubert kbMMStravinsky kbMMMozart100 kbAsimovSearch kbBookShelf1995 kbBookShelf1996 kbBookShelf1997 kbCompleteBaseball1994 kbCompleteGardening kbDangerousCreatures kbDinosaurs100 kbExplorapediaNature100 kbExplorapediaPeople100 kbFineArtist100 kbAsimovUltimateRobot kbJuliaChild kbMusicalInst kbSoundBits kbWine200 kbWorldofFlight kbScholasticHuman kbArtGallery kbEncarta1994 kbEncarta1993 kbEncarta1995 kbEncartaEnCyc1996 kbEncartaEnCyc1997 kbEncartaEnCyc1997Del kbEncartaWorldAtlas1997 kbDoItYourself kbMSBSearch
Version           : :1.0,1993 edition,1994 edition,1995 edition,2.0
Issue type        : kbhowto kbinfo

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