Configuring the Buffer Size Used by the MCIWAVE Driver

 Last reviewed: November 22, 1994
Article ID: Q92799
The information in this article applies to:
  • Microsoft Windows operating system versions 3.1, 3.11
  • Microsoft Windows for Workgroups version 3.1

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.

KBCategory: kbmm kbsound kb3rdparty kbenv
KBSubcategory: wfw wfwg win31
Additional reference words: 3.10

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.

Last reviewed: November 22, 1994
© 1998 Microsoft Corporation. All rights reserved. Terms of Use.