                        AUDIOTRIX PRO UTILITIES GUIDE
                        =============================


USING THE WINDOWS AUDIO UTILITIES
---------------------------------
  - Audiotrix Pro Input Mixer
  - Audiotrix Pro Output Mixer

BUSINESS AUDIO TRANSPORT
------------------------
  - Recorder Functions
  - Defining a New Audio File
  - Defining the User-Defined BAT Button

BUSINESS AUDIO UTILITIES AT WORK: EXAMPLES
------------------------------------------
  - Playing an Audio File from the Hard Disk
  - Recording a Single Input
        Selecting the Output File and Its Format
        Recording
        Testing and Modifying the Recording Quality
  - Recording Multiple Inputs
        Setting Up the Audio System
        Selecting the Output File and Its Format
        Recording
  - Copying an Audio File Into an Application
  - Recording Directly Into an Application

TROUBLESHOOTING THE WINDOWS AUDIO MIXER



=================================
USING THE WINDOWS AUDIO UTILITIES
=================================

The Audio Input control panel and the Audio Mixer control 
panel allow you, under Windows, to adjust input and recording 
levels and mix multiple audio inputs. 


-------------------------
Audiotrix Pro Input Mixer
-------------------------

The Audiotrix Pro Input Mixer allows you to adjust recording volume.

To access the Input Mixer, click on the Audiotrix Pro Input Mixer
icon in the Mediatrix group, or click the Input button on the
Audiotrix Pro Output Mixer Control panel.  (The next section describes
the Output Mixer Control panel.)

You adjust the Audio Input Control panel as follows:

Input Selector: Selects the source of the audio input:
--------------    - Line/CD - Selects the line input.
                  - Aux     - Selects the auxiliary line input.
                  - Loop    - Makes the audio output loop back into
                              the system, allowing multiple input.
                  - Mic     - Selects the microphone as input.

Boost: This option allows you to increase the volume of weak
-----  microphone signals by adding 20db of additional gain to the
       microphone input.  Use with the input boost slider to set
       the optimum recording level for microphone input.
  
AGC: Selects automatic gain control for the audio input.  Automatic
---  gain control automatically adjusts the volume of the audio
     input, so that all of the input into the system is level. This
     option is useful for microphone input, so that loud and soft
     voices are heard at an even level.
  
Dither: Can improve the playback sound of 8-bit recording.  When
------  testing your recording quality in 8-bit format, turn dither
        on and off to determine the preferred recording quality.

Full Scale:  Displays the input signal amplitude that causes
----------   clipping.

Vrms/db: Selects the unit of measure (volts or decibels)
-------  displayed in the full scale window.

Input Boost: When selected, increases the microphone input
-----------  signal, allowing you to adjust the input volume
             to the optimum recording level. Select the Gang
             box to adjust both channels together.

Volume Meter: Displays the level of the input signals.  If a clip
------------  box at the top of the meter lights up during recording
              or playback, some of the input has been clipped.

              The VU On box turns the volume meter on and off.  The
              Full Scale indicator displays the value of input that
              causes clipping.

About: Displays an information window describing the Audio Input
-----  Control utility.

Mixer: Displays the Audiotrix Pro Output Mixer Control panel.
-----

Save: Saves the current control settings.  The last settings that
----  are saved are used the next time Windows is loaded.

OK: Exits the Input control panel and saves the settings for the
--  current Windows session.  When you start up Windows again,
    the settings revert to the previously saved settings.

Cancel: Exits the Input control panel without saving.  Restores
------  the device setting values that were present when you opened
        the control panel or the last time you saved (whichever is
        most recent).


--------------------------
Audiotrix Pro Output Mixer
--------------------------

The Audio Mixer Control panel allows you to control the volume levels
of audio output.  When you select Mix Out on the Audio Input control
panel, the Audio Mixer Control panel allows you to select the Levels
of multiple recording inputs, such as microphone, CD, and digital disk
input.

To access the Audio Mixer control panel, click on the Audiotrix Pro
Output Mixer icon in the Mediatrix group, or click the Mixer button
on the Audiotrix Pro Input Mixer Control panel.
 
Master Volume: Allows you to adjust all of the input lines at one
-------------  time.  Adjust each input individually with the
               Sound Blaster, Wave Level, OPL4 Level, CD/Line Level,
               Mic Level and then adjust the overall Level with
               Master Volume.

Monitor Level: Allows you to listen to the audio input in the
-------------  input format you've selected.  This option can be
               used to review audio quality or to time recording
               starts before and during recording.  Select the Mute
               box to stop monitoring.

Wave Level: Adjusts the Level of digital output from the disk drive.
----------  Select the Gang box to adjust both channels together.
            Select the Mute box to stop the output.

Sound Blaster: Adjusts the Level of the Sound Blaster output.  Select
-------------  the Mute box to mute the Sound Blaster output.

OPL4 Level: Adjusts the Level of the OPL4 music output. Select the
----------  Gang box to adjust both channels together.  Select the
            Mute box to mute the OPL4 output.

CD/Line Level: Adjusts the Level of the line input.  This input can
-------------  be connected to a CD player; it may be connected to a
               line microphone.  Select the Gang box to adjust both
               channels together.  Select the Mute box to mute the
               line output.

Mic Level: Adjusts the Level of the microphone.  Select the Gang box
---------  to adjust both channels together.  Select the Mute box to
           mute the line output.

Mono Output Mute: Mutes the output of the internal speaker when the
----------------  internal speaker is attached to the audio hardware.
This will also mute the Sound Blaster output on the Audiotrix Pro.

Monitor when Recording Only: When selected, this turns mute on when
---------------------------  you are playing back a recording, so you
can hear what is being recorded without the interference of the input
audio.  This option automatically turns the input back on (turns mute
off) during recording.

About: Displays an information window describing the Audiotrix Output
-----  Mixer Control utility.

Inputs: Displays the Audio Input control panel.
------

Save: Saves the current control settings.  The last settings that are
----  saved are used the next time Windows is loaded.

OK: Exits the Mixer Control panel and saves the settings for the
--  current Windows session.  When you start up Windows again, the
    settings revert to the previously saved settings.

Cancel: Exits the Mixer Control panel without saving. Restores the
------  device setting values that were present when you opened the
        control panel or the last time you saved (whichever is most
        recent).



========================
BUSINESS AUDIO TRANSPORT
========================

The Business Audio Transport (BAT) looks like and operates like 
a typical cassette recorder.  It lets you record input from single or 
multiple audio devices, play back recorded sounds, and use the
Windows object linking and embedding (OLE) feature to embed
audio files into Windows applications.


------------------
Recorder Functions
------------------

This subsection describes the buttons, controls, and displays on 
the Business Audio Transport control panel.  Refer to the following
figure for the locations of the items on the panel.


                   BUSINESS AUDIO TRANSPORT CONTROL PANEL

                 Write Protect            Current file display
                       |                  +------+
 Open File   +----+----|------------------|--------------------+----+
       |     | -- |    |    BUSINESS AUDIO|TRANSPORT           |    |
       |     |----+----|------------------|--------------------+----|
Access +------>/--\ +--|------------------|------+ +-----------+    |
Input Mixer-+| \--/ |+-|------------------|-----+| |           |    |    File
            |->/--\ ||  WP           <---+     || |           |    |    Format
Copy to      | \--/ ||                          || |  00.00.0  |  <----- Info
Clipboard ---->/--\ ||                          || +-----------+    |
             | \--/ |+--------------------------+| +-----------+    |   Time
User-     +--->/--\ |                            | |  00.00.0  | <----- Counter
Defined --+  | \--/ +----------------------------+ +-----------+    |
           +-|>/--\   /--\ /--\ /--\   /--\   /--\ /--\ /--\ /--\   |
About -----| | \--/   \--/ \--/ \--/   \--/   \--/ \--/ \--/ \--/   |
             +---------|-----|----|------|-----|----|-----|----|----+
                       |     |    |      |     |  Rewind  |    +-- Go to end
                Play --+     |  Pause    |   Go to      Fast
                           Stop         Rec  start     Forward


Open File: Allows you to select the file to play or to open a new
---------  audio file.  Clicking open file displays a Windows file open
           dialogue box.

Access Input Mixer: Allows you quick access to the Audiotrix Pro Input
------------------  Mixer.

Copy to Clipboard: Copies the file you selected for play into the
-----------------  clipboard.  Use this option to select audio files
                   to place in another Windows application.

User-Defined: Goes to the application or utility of your choice.
------------  See "Defining the User-defined BAT Button" later in
              this guide for instructions on how to define this button.

About: Displays information about BAT.
-----

Play: Plays the selected audio file.
----

Stop: Stops play of the selected audio file.
----

Pause: Pauses play or record.
-----

Record: Starts and stops recording the selected audio file.
------

Go to start: Goes to the beginning of the selected audio file.
-----------

Rewind: Goes backwards in the selected audio file until it
------  reaches the beginning of the file or you stop the rewind.

Fast Forward: Goes forward in the selected audio file until it
------------  reaches the end of the file or you stop the fast forward.

Go to end: Goes to the end of the selected audio file.
---------

Time Counter: Displays the current position in the file (in time).
------------

File Format Info: Displays the encoding method, sample rate, channels,
----------------  number of bits, and length (in time) for the selected
                  file.

Current File Display: After you select a file with the open file
--------------------  command, the selected file is displayed in this
                      window.

Write Protect: When the dot is displayed in this box, you can
-------------  over-write the data in the file.  When the dot is
               not displayed, the file is write protected: you cannot
               over-write new data onto this file.  Click on this button to
               toggle between write protected and not write protected.


-------------------------
Defining a New Audio File
-------------------------

When you select the open file button and identify a new audio 
file, the Select File Format dialogue box appears, allowing you to 
select the attributes of the new audio file.  This subsection 
describes the file attribute options.

The formatting you select depends upon what you are recording 
and your personal preferences.  Higher quality recordings require 
more disk space; lower quality recordings require less disk space.  
If you are recording voice input, a lower quality recording 
generally plays back with acceptable quality.  If you are recording 
high-fidelity input such as a music CD and want the highest 
quality recording, select the highest quality recording attributes 
that your disk storage space can support.
  
With experience, you will learn what attributes best suit your 
recording needs.  Refer the following table for disk space requirements
for some typical recording formats.


        HARD-DISK SPACE REQUIREMENTS FOR TYPICAL RECORDING FORMATS
 +-----------------------------------------------------------------------+
 | FORMAT | CHANNELS | SAMPLE | BITS | DISK SPACE | TYPICAL USE          |
 |        |          |  RATE  |      | PER MINUTE |                      |
 |--------+----------+--------+------+------------+----------------------|
 |  PCM   |  Stereo  | 44 KHz |  16  |  10 MB     | High-fidelity music  |
 |        |          |        |      |            | CD quality           |
 |--------+----------+--------+------+------------+----------------------|
 | ADPCM  |  Stereo  | 44 KHz | n/a* |  2.5 MB    | Music                |
 |--------+----------+--------+------+------------+----------------------|
 | ADPCM  |   Mono   | 11 KHz | n/a* |  165 KB    | Voice                |
 +-----------------------------------------------------------------------+
  * The bits option applies to PCM format only.


The descriptions below include information about the output 
quality and disk space requirements for various file attributes.
  
Format: Selects the type of formatting to use during recording.
------
         PCM - PCM in 16-bit format provides the best sound quality
               and uses the most disk space.  Eight-bit recording requires
               half the disk space and provides less sound quality.
       ADPCM - Provides 4:1 compression compared to 16-bit
               PCM format.  The compression means this format uses less
               disk space with minimal degradation in playback quality.
        mLaw - Provides 2:1 compression compared to PCM format.
        ALaw - Provides 2:1 compression compared to PCM format.

Channels: Mono requires half the disk storage space as stereo, and
--------  usually provides sufficient quality for voice recordings.
          When you record stereo input, stereo recording may be called for,
          depending upon your preferences.

Sample Rate (kHz): Higher sample rates provide better sound quality
-----------------  and require more disk storage space.  Typical sample
                   rates are 11 (for voice), 22 (for medium-fidelity),
                   and 44 (for high-fidelity CD quality recording).
    
Bits: Select 16 bit for higher quality recording.  Recording in 8-bit
----  format may cause distortion (a hissing sound) during playback.  The
      Dither option in the Audio Input Control panel may help reduce
      distortion caused by 8-bit recording.

      NOTE:  The Bits category applies to PCM format only.


------------------------------------
Defining the User-Defined BAT Button
------------------------------------

To define an application or utility to start up when you click the 
user-defined BAT button, follow these steps:

1. Open the CS31BAT.INI file with the DOS edit program, the Windows Notepad,
   or any other text processing program.

2. Under the [APPLETS] category, insert the following lines:

	UserAppPath=pathname
	UserApp=filename

   Where pathname is the path to the application file, and filename is
   the name of the file.

3. Save and close the file.

   The following is an example of the command lines in the CS31BAT.INI file
   that would cause MS-Write to start up when you select the user-defined
   button:

       [APPLETS]
       UserAppPath=c:\Windows
       UserApp=write.exe



==========================================
BUSINESS AUDIO UTILITIES AT WORK: EXAMPLES
==========================================

The examples in this guide assume that your audio software,
hardware, and external audio devices are installed on the system.


----------------------------------------
Playing an Audio File from the Hard Disk
----------------------------------------

Follow these steps to play an audio file from the hard disk.

1. Start Windows

2. Open the Business Audio Transport or other playback program.

3. Click the open file button (on the upper left-hand corner of
   the panel).

   A Windows Open File dialogue box appears.

4. Select the file to play.

5. Close the Open File dialogue box.

   The selected file name is displayed in the current file
   display box on the BAT control panel.

6. Click the play button on the BAT control panel.
   The play button looks like an arrow pointing toward the right.
   It is located at the lower left-hand side of the BAT control panel.

To stop play, click the stop button just to the right of the play
button.  Use the other control buttons (go to beginning, rewind,
fast forward, and go to end) to move quickly within the file.  Use
the Business Audio Mixer control panel to adjust the output volume.


------------------------
Recording a Single Input
------------------------

To record input from an internal or external device, you must select
the audio device to be recorded, adjust the input level, and then
record.  You may want to test the quality of the audio input before
you record, especially if you are using 8-bit mode.

The following subsections describe how to record from an internal
or external audio device and how to pre-test the recording quality.

Selecting the Input Device and the Input Volume

Follow these steps:

1. Start Windows.

2. Open the Audiotrix Pro Input Mixer.

        Click on the Audiotrix Pro Input Mixer icon in the
        Mediatrix program group.

3. Under Input Selector, select the input line for the audio
   device you want to record.

4. Turn on the audio device.

5. Turn on the Volume Meter (check the VU On box).

6. Adjust the audio input level.

        If you are recording from the microphone and the
        signal is weak, click on the Boost button to increase
        the input signal.

        Then readjust the Input Boost slider.

7. (This step is optional.)
   To save the current settings, click the Save button.

   To save the current settings for this Windows session only,
   click the OK button.

   To exit the control panel without making changes, click the
   Cancel button.

8. Proceed to the next subsection.


Selecting the Output File and Its Format
----------------------------------------

    Selecting the output file and format help determines the quality
    of the recording and the amount of disk space required for the
    recorded audio file.  Refer to the descriptions of the file
    format options in the "Defining a New Audio File" section for
    more information on selecting the file format for your recording.

    1. Open the BAT control panel.

    2. Click the open file button (on the upper left-hand corner of
       the BAT control panel).

    3. Type in a new file name or select an existing file name.
       The File Format box appears.

    4. Select the desired file format for the recording.
       Refer to "Defining a New Audio File" for details on
       the file format options.

    5. Select OK.

    6. Proceed to the next subsection, "Recording."


Recording
---------

    To record, simply click the record button on the BAT control
    panel.  The system records until you click the stop button.
    While recording, the time counter displays the length of the
    file, in time, from its beginning.


Testing and Modifying the Recording Quality
-------------------------------------------

    When recording, you can listen to the recording level and then
    adjust the settings to suit your requirements.  If you wish to
    adjust the recording quality, open a new file with new attributes
    and re-record the sample.

    All of the options in the Select File Format menu, plus the dither
    button, the input boost slider, and the boost button on the Audio
    Input control panel allow you to adjust the quality of your
    recording.  Keep in mind while adjusting these features that
    higher-quality sound requires much greater disk storage space.

    To access the Select File Format menu, click the open file button
    in the upper left-hand corner of the BAT control panel.  See
    "Defining a New Audio File" for details on adjusting the recording
    format parameters.

    To access the Audiotrix Pro Input Mixer panel, click on the Access
    Audio Input control panel button located below the Open File
    button.

    To change the recording quality, adjust these features, then do
    another test recording.  Keep modifying the features and testing
    the recording until you are satisfied with the recording.


-------------------------
Recording Multiple Inputs
-------------------------

This example describes how to mix and record multiple audio 
inputs.  Use this procedure when you want to mix inputs such as 
voice input from a line microphone with musical input from a 
CD player, or musical input from the CD player with digital 
input from the hard drive.

NOTE:  To mix microphone input with other input, you must use 
a line microphone with the line input connection.  The 
microphone input does not allow you to mix microphone input 
with other input.


Setting Up the Audio System
---------------------------

    The Loop option on the Audio Input control panel allows you to
    record audio from more than one input device at a time.

    1. Start up Windows

    2. Turn on your audio input devices, if necessary.
       For example, turn on an external tape player or CD player.

    3. Open the Audio Input control panel.
       Click on the Audio Input Control icon in the CRYSTAL
       program group.

    4. Under Input Selector, select Loop.

    5. Open the Audio Mixer control panel.
       Click on the Mixer button in the Input control panel.

    6. Adjust the mixer sliders to balance the audio for each input
       device according to your preferences.

    7. Adjust the total input level with the Master Atten slider.

    8. Adjust the recording quality according to the instructions in
       "Testing and Modifying the Recording Quality" described
       earlier in this guide.

    9. Proceed to the next subsection, "Selecting the Output File
       and It's Format."


Selecting the Output File and Its Format
----------------------------------------

    Selecting the output file and format determines the quality of and
    the amount of required disk space for the recorded audio file.
    Refer to the descriptions of the file format options in "Defining
    a New Audio File" for more information on selecting the file format
    for your recording.

    1. Open the BAT control panel.

    2. Click the open file button (on the upper left-hand corner of
       the BAT control panel).

    3. Select a new file name.

       The File Format box appears.

    4. Select the desired file format for the recording.
       Refer to "Defining a New Audio File" for details on the file
       format options.

    5. Select OK.

    6. Proceed to the next subsection, "Recording."


Recording
---------

    To record, simply click the record button on the BAT control
    panel.  The system records until you click the stop button.  While
    recording, the time counter displays the amount of time elapsed
    since you started recording.

    A nice feature to use while recording is Monitor When Recording
    Only on the Audio Mixer control panel.  When you select this
    option, the system plays the input audio when you are recording,
    but mutes the input audio when you are playing back a recorded
    file.


-----------------------------------------
Copying an Audio File Into an Application
-----------------------------------------

This section briefly describes how to use Windows object linking 
and embedding (OLE) to place audio excerpts into documents 
created by other applications.  For more information on OLE, 
refer to your Windows documentation.

Before you perform this procedure, you must have opened the 
BAT utility at least once so that it registers with Windows as an 
OLE server.  (The BAT utility does not have to be open while 
you perform this procedure.)

In order for the embedded audio file to run on the application it is 
embedded in, BAT must be installed on the system that is 
running the application.

The following steps describe object linking, in which you copy an 
audio file into an application:

1. Open the BAT utility.

2. Create or open the file you want to embed into another
   application.

3. Click on the copy to clipboard icon (on the middle left-hand
   side of the BAT control panel).

4. Open the target application.

   The target application is the one where you want to embed
   the audio file.

5. Select the appropriate paste option.

   The paste option may be called paste special, paste link, or
   other wording depending upon the application.

   The BAT utility places an icon into the application.  To
   play the audio file, click on the icon.  The BAT control
   panel comes up and BAT plays the audio file.  You can then
   play the file again or close the BAT.


--------------------------------------
Recording Directly Into an Application
--------------------------------------

The following steps describe object embedding, in which you  
record a new file directly into an application:

1. Open the application you want to embed the audio file into.

2. Select insert object.

   The application gives a list of OLE servers.

   NOTE:  If BAT is not listed, open BAT and then close it
   again so that it can register itself as an OLE server.

3. Select BAT.

   The BAT utility displays the Select File Format panel.

4. Select the file format to embed into the application.

   Refer to "Defining a New Audio File" for instructions on selecting
   an appropriate file format.

5. Record the audio file.

   See the sections elsewhere in this guide for instructions on
   how to record a file.

6. Close the BAT utility.

   The BAT utility places an icon into the application.  To
   play the audio file, click on the icon.  The BAT control
   panel comes up and BAT plays the audio file.  You can then
   play the file again or close the BAT.



=======================================
TROUBLESHOOTING THE WINDOWS AUDIO MIXER
=======================================

Nearly all sound card problems you encounter are caused by 
hardware conflicts with other cards such as Network cards and 
FAX/Modem cards, SCSI adapters, and tape backup drives.  
Such cards may already be using the IRQ or DMA channel you 
selected for the sound card.
  
If you find IRQ or DMA conflicts between your sound card and 
other hardware in the system, correct these conflicts by following 
the instructions found elsewhere in this guide.

                            SOUND CARD PROBLEMS
 +---------------------------------------------------------------------------+
 | SYMPTOM                    PROBABLE CAUSE            CORRECTIVE ACTION    |
 |---------------------------------------------------------------------------|
 | No sound                   I/O Address Conflict      Change I/O Address   |
 |---------------------------------------------------------------------------|
 | The software indicates     I/O Address Conflict      Change I/O Address   |
 | that it cannot find the                                                   |
 | hardware                                                                  |
 |---------------------------------------------------------------------------|
 | Unable to play or          DMA channel conflict      Change DMA Channel   |
 | capture                                                                   |
 |---------------------------------------------------------------------------|
 | Repetitous sound (echo)    IRQ conflict, or more     Check/change IRQ     |
 |                            than one Windows          numbers, ensure that |
 |                            sound system driver       only one WSS driver  |
 |                            is installed              is installed         |
 |---------------------------------------------------------------------------|
 | No visual activity on      DMA channel conflict      Change DMA Channels  |
 | volume meter                                                              |
 |---------------------------------------------------------------------------|
 | "Noisy" sound (hissing     System is not demand-     Select single-byte   |
 | or static)                 mode DMA compatible       mode DMA             |
 +---------------------------------------------------------------------------+

