  Product Description
  PORT*ABLE Sound Device Driver for OS/2
  Release Version 1.1.0 of 2/95


  1.  Product Description

      PORT*ABLE(tm) sound device driver for OS/2(tm).
      PORT*ABLE(tm) sound device driver for WIN/OS2(tm).


  2.  S/W Requirements

      OS/2       - Operating System Version 2.1 or 3.0 (Warp)
      MMPM/2(tm) - OS/2 Multimedia system


  3.  Supported Features

      Native OS/2 and WIN/OS2
		Playing and Recording wave sound files (.WAV)
		Playing midi (.MID) and video files (.AVI)

	  Master Volume Control.
      Shared access to the sound device.
	  Sharing the parallel port with a printer.


  4.  New Features In This Release

	  Added support for OS/2 WARP.

	  Volume control for MIDI files.

	  Enhanced performance when playing audio files in windows.

	  Windows driver support Dual Boot (same drivers used for
		  Win/OS2 and Windows 3.1).


  5.  Installation

  5.1 Preliminary

      You have to install OS/2 and MMPM/2 (multimedia support) before
      installing the PORT*ABLE sound device driver. When Installing MMPM/2
      you should NOT install support for any sound unit.

      If you already have installed any audio device driver, you have to
      de-install it. Do that by re-installing that driver and specify ZERO
      when prompted for the number of sound devices installed.

	  The installation overwrites the following OS/2 system files:

	  	\os2\print01.sys
		\os2\print02.sys
		\os2\mdos\vlpt.sys

	  We recommend that you save these files prior to installation (do not
	  remove them).

	  Since MINSTALL supports only one target drive, if your \os2 and \mmos2
	  directories are not on the same drive you will have to copy these files
	  yourself from the installation directory/diskette to their destination.

  5.2 Install for OS/2

      Invoke MINSTALL (the MMPM/2 installation program) from the multimedia
      folder or the OS/2 command prompt.

      Select the source for installation the diskette or directory where the
      PORT*ABLE sound installation files are located.

      Select the features to install.

      MINSTLAL will guide you interactively through the installation process.

      Reboot your system.

 5.3  Install for WIN/OS2

 	  Install the NEW OS/2 drivers and reboot.

	  Enter the "OS/2 System" folder.
	  Enter the "Commands Prompts" folder.
	  Select WIN/OS2 with the RIGHT button.
	  Select "OPEN" and then "Settings".
	  In the settings binder select "Session" and then "WIN/OS2 Settings"
	  
	  Modify the following settings:

	  	HW_NOSOUND		off
		HW_TIMER		on
		INT_DURING_IO	on

	  Save and exit.

	  Invoke WIN/OS2.

	  Select "Windows Main" then "Control Panel" and then "Drivers".

	  If you have a previous version of the WIN/OS2 driver installed, highlight
	  it and click on the "REMOVE" control button.
	  Restart windows and again select "Windows Main" then "Control Panel" and
	  then "Drivers".

	  Click on the "ADD" control button and select "add unlisted driver".
	  Specify the path for the WIN_DD directory as the source for installation.
	  The windows install program will guide you through the remaining steps.
	  If you are notified that any files already exists on the system always
	  choose "new" when promplted which file to use.

	  NOTE !!!

	  If you plan to switch back and forth between booting OS/2 and booting
	  DOS+Windows, please note that the windows drivers supplied with this
	  release of the OS/2 drivers will work under both Win/OS2 and MS-Windows
	  3.1 (tm).

 5.4  Removing the Driver

      To remove the driver from your system, comment out the following lines
      in your config.sys file:

        DEVICE=\MMOS2\DS301DD.SYS /N:PSAUD1$
        DEVICE=\MMOS2\DS301VDD.SYS PSAUD1$

	  Restore the vlpt.sys files that you have saved during install, to the
	  \os2\mdos driectory.

      To remove the driver from the multimedia environment, comment out the
      follwing lines in the [drivers] section of the \mmos2\mmpm2.ini file:

        Ampmix=PSAMPMIX01
        Waveaudio=PSWAVEAUDIO01
		Sequencer=PSSEQUENCER01

	  To remove the driver from the WIN/OS2 environment click on the "delete"
	  button in the "Windows Main" / "Control Panel" / "Drivers" app.

	  Or comment out the Wave=, MIDI= and Aux= Lines from the [Drivers]
	  section in \os2\mdos\winos2\system.ini


  6.  Application Notes

	  A. RECORDING

	     Set the recording sampling rate to 11Khz MONO.
		 You can choose to record at 8 or 16 bits per sample.

	  B. MIDI under WIN/OS2

		 MIDI in WIN/OS2 has a 20% delay compared to MIDI in native mode.
	  	 If MIDI plays much slower than that or plays erratically, then there
		 is another DOS session which interferes with the Hardware Timer.
		 Either terminate this DOS session or set its HW TIMER setting to off.

		 Two MIDI maps are provided, "PORT*ABLE Sound" for basic MIDI which
		 the sound unit supports directly and "PORT*ABLE MIDI" for extended
		 MIDI which is emulated. If no sound is heard when playing MIDI then
		 select the alternate midimap (using the midi mapper).

	  C. DOS Sessions

	     The PORT*ABLE Sound drivers for MS-DOS (tm) can be used in an DOS
		 Session under OS/2, except for BMASTER which CANNOT BE USED WITH OS/2.
		 Sound quality will average for files recorded at high sampling rates.

	  D. BocaSoft System Sounds

	  	 If you plan to use the sound device from a WIN/OS2 session, select
		 the compatibility setting in BocaSoft's System Sounds Setup.


  7.  Sharing the Sound Device among OS2, WIN and DOS sessions.

  	  The DOS-Session parameter called Sound Adapter Sharing controls the
	  sharing of the sound unit among OS2, WINOS2 and DOS session.

	  This parameter can take the following values:

	  	Optional - sound adapter is used if available.

		Required - if sound device is not available, the user is notified and
				   asked whether to:
				   KILL the session,
				   IGNORE the situation (proceed without using sound device),
				   RETRY (session blocks until sound device is made available).

		None     - session never uses sound adapter.

	  The default setting is "Optional".

	  In OS/2 sessions the error "request is not supported or the hardware
	  is defective" usually indicates that the sound unit is used by another
	  session, another application or the print spooler. 


 8.   The following are trademarks of their respective owners:

      MCA, OS/2, WINOS2, MMPM/2, Ultimotion     - IBM Corp
      PORT*ABLE Sound                           - DSP Solutions Corp
	  MS-DOS, MS-Windows						- Microsoft Corp

