===================================================================== AST RESEARCH, INC. SOFTWARE BULLETIN # 0265 09/10/96 ===================================================================== TITLE: Crystal CS4232 Audio Drv Win95, v1.51 FILENAME(S) / PART NUMBER(S) / DESCRIPTION(S): 12217035.EXE / 912217-035 Crystal CS4232 Driver For Win95, v1.51 SUMMARY File 12217035.EXE contains version 1.51, disk 1 of 1, of the Crystal CS4232 audio drivers for Windows 95. This update applies to all AST systems using the Crystal CS4232 audio drivers. RESOLUTIONS Version 1.51 resolved the following issues: Windows 95 Driver: Consecutive suspends and resumes while an AVI file is playing will cause the audio and video to lose synchronization. Changing the IRQ setting will sometimes cause a blue screen crash. Doing a suspend while the Master Volume is muted and playing a MIDI file will cause the part to resume with MIDI unmuted, even though the mute button is selected. Doing a suspend while the Master Volume is muted and playing a WAV file will cause the part to resume with WAV unmuted, even though the mute button is selected. Doom can not play FM in a DOS box. Suspend and resume will unmute MPU-401 on machines that do full powerdown. Karaoke does not work on non-PnP machines. On a CS4232, recording in half duplex does not work. On a CS4232, making a settings change in the System Device Manager will hang the machine. Playing DOOM in a DOS box right after the first install will not play any FM. On a CS4232, doing a suspend / resume will cause static after doing a playback or capture. MIDI Driver: Fixed problem with suspend / resume not working properly while playing a MPU-401 MIDI. SETUP.EXE: SETUP.EXE created WININIT.INI entries to delete some of the Crystal drivers that were not deleted when the program was run. ENHANCEMENTS SETUP: Created SETUP.EXE to uninstall driver by deleting the installed files, cleaning out the registry entries, removing CS4232C.EXE from the CONFIG.SYS, and prompting the user for a reboot. Added support in SETUP.EXE to uninstall drivers and registry entries from early versions of the driver. Windows 95 Driver: The default Sound Blaster mixer settings can be set through registry entries. The settings are only set at Windows 95 initialization. Added basic Karaoke functionality to the driver. Karaoke can be enabled via the Advanced button in the Input Panel. Added SmartKaraoke. When enabled via the registry entries, it forces the input to MIC and does not allow the user to select any input other than MIC. Added registry entries to support Karaoke features in the driver. Changed the default mixer settings for the input and mixer panel. The microphone input is now default on installation. PREVIOUS RELEASE(S) Version 1.24 fixed the following problems with Windows 95 driver: Volume control problems reported with the game Sonic. Clicking on the input Mixer control and the Line Control caused the monitored audio (Line input) to jump dramatically. After the first installation of the driver, changing the source on the input mixer did not work. It only captured from one source. After the first installation, recording audio only captured audio on the right channel. Changing the Synth slider caused a GPF error. If playing a short WAV while adjusting the Synth Slider, sometimes the mixer register settings would not be correct. Playing a WAV file on a system that was overloaded (the CPU is bogged down) would cause clicks during a WAV. The MPU-401 device was not coming up on the first installation. Playing multiple games in a virtual DOS box, would cause the Sound Blaster DMA to fail. After the first installation with 16 code on the EEPROM, the driver settings tab incorrectly displayed the microcode as version 16. Version 1.24 fixed the following problem with the FM driver: Fixed the APM rejection with the game Sonic. Version 1.24 fixed the following problem with the DOS driver: Playing a WAV file on a system that was overloaded (the CPU is bogged down), would cause clicks during a WAV. The MPU-401 device was not coming up on the first installation. Playing multiple games in a virtual DOS box, would cause the Sound Blaster DMA to fail. After the first installation with 16 code on the EEPROM, the driver settings tab incorrectly displayed the microcode as version 16. Previous releases also included the following resolutions: Sound recorder did not work. No sound at the beginning, when playing CD through the CD player. MPU WAV was not configured properly. Resource version checking error message in Windows driver. Fixed the problem of the input Panel VU meter not coming up. Fixed the problem of recording with Microphone with stereo, 16 bit formats. Driver playing a WAV, recording a WAV, then playing a WAV again, would not play any audio. The user was unable to record after changing the duplex, from the Device Manager. Fixed the driver problem where the RAM code was not getting loaded correctly when first installed. If the user went into a DOS box right after installation, the Sound Blaster was not working correctly. In the entry under Control Panel: Multimedia: CD Music, called "Headphone Volume," changing this volume did not change the CD mixer on our software. Modifying control panel settings for the driver (i.e. change full to enhanced full duplex) made the following message pop up: "There were no active mixer devices available" This problem occured if changes were made in the control panel while the WSS mixer panel was open. This was a manifestation of the dynamic driver loading and unloading. When sliding the wave volume control all the way and sliding the master volume control all the way down, no sound could be heard with the default WSS driver, but sound could be heard with the CS32BA11 driver. Modification to the audio device settings in the control panel while the audio device is in use lead to the device manager reflecting incorrect settings. A reboot was needed if settings were modified while the audio device was in use. Previous versions also included the following enhancements: Added CS32MIX to the kit. This gave support for DOS mode games that needed a mixer to adjust audio levels. NOTES N/A For information on installing this update, please view the README.TXT file that accompanies the update. You can download this file from the following services: AST WWW Site: http://www.ast.com AST On-Line! BBS*: See IB0001.TXT CompuServe: GO: ASTFORUM Prodigy: Jump: astsupport * Refer to IB0001.TXT for a list of AST's international BBS numbers. To decompress this file, create a temporary directory on your hard drive, copy the downloaded file to that directory, and run the file. TAN 000121MH, 000137AH --------------------------------------------------------------------- The information in this data sheet is subject to change without notice. AST Research, Inc. shall not be liable for technical or editorial errors or omissions contained herein; nor for incidental or consequential damages resulting from the furnishing, performance, or use of this material. This material contains information protected by copyright. No part of this material may be reproduced in any form without prior written consent from AST Research, Inc. All rights reserved. ---------------------------------------------------------------------