KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q92799: Configuring the Buffer Size Used by the MCIWAVE Driver

Article: Q92799
Product(s): Microsoft Windows 95.x Retail Product
Version(s): WINDOWS:3.1,3.11
Operating System(s): 
Keyword(s): 
Last Modified: 08-OCT-1999

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft Windows versions 3.1, 3.11 
- Microsoft Windows for Workgroups versions 3.1, 3.11 
-------------------------------------------------------------------------------

SUMMARY
=======

The [mci] section of the Windows SYSTEM.INI file contains the following line
specifying the MCI waveform driver:

       WaveAudio=mciwave.drv value

where "value" is an integer between 2 and 9. This value is the number of seconds
that MCIWAVE.DRV buffers audio data during playback or record. This value is
directly related to the amount of memory that MCIWAVE.DRV allocates for the
buffering. If there is no value listed, MCIWAVE.DRV uses the default value of
4.

Note: If you change the value on the WaveAudio line in the SYSTEM.INI file to a
number outside the range 2 to 9, Windows uses the default value of 4.

You can modify this setting in Control Panel using the procedure listed below.

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

To change the buffer length setting, use the following steps:

1. In the Control Panel window, choose the Drivers icon.

2. Select MCI[Sound] from the list of installed drivers.

3. Click the Setup button.

4. The MCI Waveform Driver Setup dialog box appears. Set a value between 2 to 9.

Additional query words: 3.10

======================================================================
Keywords          :  
Technology        : kbAudDeveloper kbWin3xSearch kbWFWSearch kbZNotKeyword3 kbWin310 kbWin311 kbWFW310 kbWFW311
Version           : WINDOWS:3.1,3.11

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.

Copyright Microsoft Corporation 1986-2002.