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SX-3 SX-33
SX-33b SX-33e
16-BIT PRO SOUND
Digital Audio Adapter
User's Manual
January 18, 1996
ANTEX ELECTRONICS CORPORATION
16100 SOUTH FIGUEROA STREET
GARDENA, CALIFORNIA 90248
9000-2319-7006
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TABLE OF CONTENTS INTRODUCTION ......................................................................1 ABOUT DIGITAL AUDIO ..........................................................1 MINIMUM HARDWARE RECOMMENDED...............................6 ADAPTER INSTALLATION ......................................................6 JUMPER SETTINGS.....................................................6 CONNECTIONS............................................................8 DRIVER INSTALLATION.................
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FIGURES Figure 1. Analog-to-Digital Conversion ....................................3 Figure 2. Digital-to-Analog Conversion ....................................5 Figure 3. Setting JP7 for audio IRQx 10 ..................................7 Figure 4. Setting JP5&6 to the audio I/O address & Z.WAV ad- dress .................................................................................7 Figure 5. Z1, Z1e, SX-3, SX-33, SX-33b, SX-33e Connectors.9 Figure 6. DOS Demo Environment ..............
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INTRODUCTION The Series 2 and 3 Digital Audio Adapters are IBM AT compatible add-on boards which convert high fidelity analog signals to digital data for storage to, and retrieval from, disk. The Series 2 and 3 adapters sample two channels of audio from 7.35 kHz to 50kHz with 16 bit resolution. They incorporate Sigma Delta technology with 64 times oversampling, providing superior fidelity at greater than 80 dB signal-to-noise ratio. ABOUT DIGITAL AUDIO In professional circles, digital audio has
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In essence, digital audio is a technological process whereby an analog audio signal (produced when sound waves in the air excite a microphone) is first converted into a continuous stream of num- bers (or digits). Once in digital form, the signal is extremely im- mune to degradation caused by system noise or defects in the storage or transmission medium (unlike previous analog sys- tems). The digitized audio signal is easily recorded onto a variety of optical or magnetic media, where it can be
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Figure 1. Analog-to-Digital Conversion That's about five billion bits per hour, which is why you'll need at least an 800 Megabyte hard disk to record an hour of compact disk quality music. To visualize the analog-to-digital conversion process, refer to Fig- ure 1. At the top is one cycle of an analog input signal wave. We've used a simple sine wave to make visualization easier. In this example, the signal has a peak-to-peak amplitude of 20 units, measured by the scale on the left. The sampli
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the quantizer generates a continuous "bit stream" which repre- sents the quantized signal. The continuous stream of digital audio information is converted into a digitally modulated signal using a technique known as linear pulse code modulation. Digital-to-analog conversion (used in playback) is the exact oppo- site of the analog-to digital conversion process and is illustrated in Figure 2. In digital-to-analog conversion, the PCM bitstream is converted at the sampling frequency to a continuou
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Figure 2. Digital-to-Analog Conversion 5
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MINIMUM HARDWARE RECOMMENDED ! 12MHz 386 PC or compatible ! 28mSec average access hard disk ! 1:1 Interleave hard disk controller ! Mouse ! VGA display ADAPTER INSTALLATION Make sure the main power to your computer is OFF. You will need a full-size, 16 bit/AT slot. If you are unfamiliar with the inter- nal design of your computer see its "Guide to Operations" manual for step by step installation procedures. Read JUMPER SETTINGS and CONNECTIONS for information about configuring the adapter befo
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2 3 5 7 10 11 "" """ " "" """ " "" Figure 3. Setting JP7 for audio IRQx 10 The I/O address is set to 380h, but may be changed to 180h, 220h, or 280h via jumpers JP5 and JP6. Figure 4 illustrates the use of JP5 & 6. NOTE:For the Z1, Z1e, SX-3, SX-33, SX-33e -The Z.WAV ad- dress shown is always used, even if no Z.WAV is present. " " Z.WAV AUDIO I/O MPU-401 ADDRESS " " ADDRESS JP5 JP6 X X 180h DISABLED X - 220h 300h - X 280h 320h - - 380h 330h NOTE: "X" indicates an enabled jumper Figure 4. Set
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If you are connecting a SCSI CD-ROM to a Z1e board (marked F2319-4 Rev A or B) under Windows NT, use Windows NT driver V0.8e or later. If a Z-Wave is installed, the MPU-401 address is set by JP5 & 6 (Note that these jumpers simultaneously set the Audio I/O address). The available addresses are 300h, 320h and 380h(default). Figure 4 shows how the MPU- 401 address is selected. CONNECTIONS There is a five pin internal CD ROM header for connecting a Z1/Z1e to audio output of a CD-ROM. A 50-pin he
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LINE IN MICROPHONE CD/AUX Z1/Z1e OUTPUT 15-PIN JOYSTICK CONNECTOR LINE IN MICROPHONE CD/AUX SX-3/SX-33/SX-33e OUTPUT Figure 5. Z1, Z1e, SX-3, SX-33, SX-33b, SX-33e Connectors. Audio connections are made via 4 stereo mini-phone jacks mounted on the bracket end. From top to bottom, the jack func- tions are LINE IN, MIC IN, AUX/CD-ROM IN (SX-3/SX-33/ SX-33b/SX-33e is AUX IN only), and OUT (powered). In addition, the Z1/Z1e has a 15-pin D connector located on the bottom end of the bracket for MIDI
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Audio Input: Line: Stereo 1/8" mini plug, 1 VRMS (2.83 Vpp) max, with an impedance of 10K ohms. Microphone: Stereo 1/8" mini plug, 10 mVRMS max, with an impedance of 10K ohms. Aux/ CD-ROM Input (SX-3/SX-33/ SX-33b/SX-33e is AUX only): Stereo 1/8" mini plug, 1 VRMS(2.83 Vpp)max, with an im- pedance of 10K ohms. Audio Output: 1/8" Stereo mini plug, 1 VRMS max into 8 ohms. MIDI/Joystick Breakout Connector (Z1/Z1e Only): DB-15 female When adapter installation is complete and all audio connections ha
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DRIVER INSTALLATION DISKS Disk 1. The "WINDOWS DRIVERS" disk contains Windows drivers and applications (Note: The DOS 3.2/Windows 2.0 drivers continue to come on a single disk): • • • • ANTEXWAV.DRV - Windows Wave Driver for SX3, SX5e, SX7, SX9, SX11, SX12a, SX20, SX22, SX23e, SX26, SX33, SX33e, Z1, Z1e • • SAPIZ1.DRV - OPL3 FM Synthesizer for Z1 and Z1e • • • • • • VAPIZ1.DRV - YM3802 MIDI driver for Z1 and Z1e • • • • MIDIMAP.CFG - MidiMapper config file with Z1 and Z1e specific maps • • • •
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Disk 2. The "DOS DRIVERS" disk contains DOS drivers and applications: • • • • SX25.EXE - DOS V3.3 TSR driver for the SX7, SX9, SX11 SX-12a, SX20, SX22, SX23e and SX26 • • Z1.EXE - DOS V3.3 TSR driver for the Z1, Z1e, SX3, • • SX33, SX33e • • SX5E.EXE - DOS V3.3 TSR driver for the SX5e • • • • • • ADG.EXE - Digital audio player/recorder • • README.TXT (optional) - Additional information • • Disk 3. The "CD-ROM" disk contains Future Domain CD- ROM drivers and utilities. This disk will be supplied
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1. Select Control Panel in the Main group of the Program Man- ager. Then select Drivers. 2. Select "Antex Audio Driver for Windows" from the list of in- stalled drivers. Click on Setup. 3. To set adapter type: "Antex Audio Driver Setup" displays the adapter types assigned to adapters 1-4. Change the type by using the drop down menus for each adapter. Information about the number of de- vices, I/O address, and interrupt number are displayed to the right of each adapter. 4. To set the number
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DOS DRIVER INSTALLATION 1. Insert the DRIVERS disk into your floppy drive (assumed to be A:) 2. Type A: 3. Type INSTALL driveletter:\path to copy all files from the disk to a subdirectory on your hard disk. ex. INSTALL C:\ANTEX CD-ROM DRIVER INSTALLATION (Z1/Z1e ONLY) 1. Insert the CD-ROM disk into your floppy drive (assumed to be A:) 2. At the DOS prompt type A:INSTALL. REMEMBER: When the Windows driver installation is complete, Windows should restart automatically. If not, exit then restart W
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USING DOS DEMONSTRATION SOFTWARE: On the enclosed disk is the demonstration software for the Z1, Z1e, SX-3, SX-33 and SX-33e boards. Filenames are as fol- lows: Driver Program Z1.EXE DOS Demonstration Program ADG.EXE To run the Demonstration Software: 1. Load the included disk files into their own directory on your hard disk using the DOS copy command (all files must be in the same directory) 2. Install your mouse driver. 3.Install the Z1/Z1e/SX-3/SX-33/SX-33e driver by running Z1.EXE. 4. Run t
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Figure 6. DOS Demo Environment KEY COMMANDS: Q-Quit Quits the demo program and returns to DOS. C-Channels Allows choice of channel configuration. MONO-Single channel record/play STEREO-Dual channel record/play T-Format The format for encoding or decoding audio data: PCM16 - 16 Bit Pulse Code Modulation, uncom- pressed. PCM8 - 8 Bit Pulse Code Modulation, uncom- pressed. PCMU8 - 8 Bit Pulse Code Modulation, uncom- pressed. This format is compatible with Microsoft 8 Bit WAV format. 16
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µµµµ ADPCM1 - Series 1 compatible Adaptive Differen- tial Pulse Code Modulation compression. ADPCME - Enhanced Adaptive Differential Pulse Code Modulation compression, DVI compatible. CDIB - Compact Disk Interactive level B compres- sion, CD-ROM XA compatible. CDIC - Compact Disk Interactive level C compres- sion, CD-ROM XA compatible. MSADPCM - Microsoft Adaptive Differential Pulse Code Modulated compression (currently playback only). A-law - CCITT G.711 compression (European). -law - CCITT G.7
