Hoontech SoundTrack Audio DSP24 User manual

About this manual:
The product described in this manual has been developed and produced by Hoontech Co., Ltd.
•SoundTrack Audio DSP24 and SoundTrack Audio DSP24 MK II are trademarks of Hoontech
Co., Ltd.
•Microsoft, Windows, Windows 95, Windows 98 and Windows NT are registered trademarks
or trademarks of Microsoft Corporation.
All other brand and product names are trademarks or registered trademarks of their respective
holders.
November, 2000
It is the policy of Hoontech to improve products as new technology, newer components, improved
software and drivers become available. Hoontech, therefore reserves the right to change
specifications without prior notice.
A/S Center
Hoontech Co., Ltd.
4th Flr., Minkyung Bldg.,
#332 Songne-1Dong, Sosa-Ku,
Bucheon City, Kyungki-Do, Korea
Tel.: [phone]
Fax: [phone]
Internet: http://www.hoontech.com
Copyright © 1998, 1999, 2000 Hoontech Co., Ltd.
This documentation was created by Hoontech Co., Ltd. (Korea) and RIDI multimedia (Germany).
Special thanks to James McCanna and John Fuller for the help in creating this manual.
Note: To avoid damage of your speakers, always turn down the volume or turn off the power of
your amplifier connected to the SoundTrack Audio DSP24 when you are rebooting or shutting
down your PC.

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Contents
I. Introduction.....................................................................................3
II. Specifications..................................................................................6
III. In-and output connectors..............................................................7
SoundTrack Audio DSP24 7
SoundTrack Audio DSP24 MK II 8
IV. Block diagram .................................................................................9
V. Hardware installation....................................................................10
External hardware connection 10
VI. Driver and software installation...................................................13
Driver installation 13
Software installation 16
VII. External Links ...............................................................................20
VIII.Mixer controls ...............................................................................22
Internal Mixer 22
External Mixer 26
IX. Hardware settings.........................................................................29
X.Connection with input devices and external boxes...................31
XG DB I 31
MK II Analog I/O cable 32
SoundTrack Digital Audio 34
External Boxes 35
XI. Usage with software applications................................................37
Available in-and output devices 37
Setting up Emagic Logic SoundTrack24 39
Setting up Steinberg Cubase VST/24 3.72 41
Setting up Emagic Logic Audio Platinum 4.5 44
Setting up Cakewalk 9.x 46
Setting up BPM Studio Professional from Alcatech 48
Setting up Nemesys GigaSampler 1.6 49

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I. Introduction
Congratulations on your purchase of the SoundTrack Audio DSP24. The Audio DSP24 is a PCI
digital interface soundcard designed to work as a stand-alone interface or with a variety of
breakout boxes available from Hoontech.
There are two hardware versions. The normal SoundTrack Audio DSP24 is usually used together
with external boxes to provide multiple in-and output channels. The SoundTrack Audio DSP24
MK II has additionally 2 analog in-and 2 anlog output channels with high-quality 24bit/96kHz
AD-and DA-converters. Most informations in this manual are valid for both hardware revisions.
You should have received the following with your Audio DSP24:
•Hoontech SoundTrack Audio DSP24 or Audio DSP24 MK II soundcard
•Digital XG DB I I/O card
•4x4 pin S/PDIF I/O cable
•2x2 pin CD-ROM digital cable
•4x3 pin CD-ROM analog cable
•10 pin flat digital audio cable
•4 XLR to 15pin cable for balanced analog I/O (only DSP24 MK II)
•10-pin flat ribbon cable for connection with SoundTrack Digital Audio (optional)
•AES/EBU adapter cables –2 XLR to 1/8" jack adapters (optional)
•driver and installation CD
•this manual

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Superb multi-track quality:
The Audio DSP24 supports up to 24-bit resolution and 96kHz sample rates and includes a digital
daughter card (XG DB I) that employs the AES/EBU, optical and coaxial S/PDIF standards. The
Audio DSP24 can handle up to ten I/Os when the card is combined with the daughter card –all at
up to 24-bit and 96kHz. In addition, all internal signal paths are processed at 36-bit resolution
ensuring the highest amount of headroom and fidelity.
Expandability:
The user can install up to four Audio DSP24 soundcards in one system. The user can set one card
as the master clock controller via software or slave all cards to an external S/PDIF clock source.
No jumpers are required.
In addition, the Audio DSP24 can be used with one or more Hoontech external boxes and
rack-mountable breakout boxes (using the H-BUS interface) such as:
ADC III –24bit/96kHz, 8 analog ¼" balanced inputs, Line In and Mic in preamplifiers with 48V
“phantom power” for condenser microphones.
DAC III –24bit/96kHz, 8 analog ¼" balanced outputs, AES/EBU, optical and coaxial S/PDIF
connections are also provided.
Digital Modulator III –24bit/96kHz, S/PDIF and AES/EBU I/O connections connections are
supported. Inputs are automatically synchronized.
ADC&DAC2000 –24bit/96kHz, 8 unbalanced ¼" I/O, 2 XLR inputs with gain control, headphone
output with gain control and MIDI I/O.
Digital Station 2000 –8 channel ADAT and TDIF I/O interface.
It is possible to connect several external boxes to one card at the same time. So you can build up a
system with exactly the number of inputs and outputs you need now and you can expand it later.
Intuitive Software Interface:
The Audio DSP24 comes with a suite of software interfaces.
The External Links software is the Audio DSP24 routing center and allows you to route/patch
signal path for a variety of devices on a virtual patch bay.
The External Mixer (20 channels) sets input/output and panning levels for the Wave 1/2, Wave
3/4, Wave 5/6 and Wave 7/8 channels, (stereo pairs each), S/PDIF In and Out, during recording

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and mixdown. The output of the External Mixer can be played through the outputs of external
boxes or through the digital output of XG DB I.
The Internal Mixerallows settings for input and output levels for Wave, Line In, MIC, CD In and
Auxiliary devices. The output signal of the Internal Mixer is always played through the Line
Output on the card. This makes it possible to use the card as an ordinary standard soundcard.

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II. Specifications
•PCI 2.1 compliant interface
•10 input and 10 output channels using XG DB I and external boxes (External Mixer using the
H-BUS interface)
•Sample rates in kHz: 32, 44.1, 48, 88.2, and 96
•supported converter resolution: 16-bit, 20-bit and 24-bit
•MPU-401 MIDI interface
•Internal CD in, Line In, Mic In, Line Out via AC-97 Codec / Internal Mixer (there is no Mic-
and Line In on DSP24 MK II)
•AES/EBU, optical and coaxial S/PDIF standards support
•compatible with SoundTrack Digital Audio
•Drivers for Windows 95/98/ME, NT4 and Windows 2000 available
•Support for ASIO 2.0
•GSIF-support

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III. In-and output connectors
SoundTrack Audio DSP24
1. Mic In –1/8" jack
2. Line In –1/8" stereo jack
3. Line Out –1/8" stereo jack
4. H-BUS Digital I/O connection via 44x44 pin cable for external boxes
5. 16 pin connector for optional Digital I/O card or analog bracket
6. MIDI connector (cable optional)
7. Digital Audio connector –used when a SoundTrack Digital Audio card is installed
8. CD In –can be connected to the analog output from CD-ROM
9. Aux –can be connecte to the analog output from a TV-card or other analog source
10. S/PDIF I/O –Connection to the XG DB I daughtercard
11. CD In –digital output from CD-ROM (disabled when S/PDIF active and vice-versa)

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SoundTrack Audio DSP24 MK II
1. 15pin D-SUB connector for 4 XLR to 15pin cable
2. H-BUS Digital I/O connection via 44x44 pin cable for external boxes
3. Jumper settings for 1/8"-Output
4. Bracket connector –used when a SoundTrack DAC or Analog Bracket is installed
5. CD In –can be connected to the analog output from CD-ROM
6. Aux –can be connecte to the analog output from a TV-card or other analog source
7. CD In –digital output from CD-ROM (disabled when S/PDIF active and vice-versa)
8. S/PDIF I/O –Connection to the XG DB I daughtercard

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IV. Block diagram
Note: The Internal and External Mixer are completely independent. The Internal Mixer controls
normal PC audio functions such as Windows sounds or CD Audio playback. It is represented by
the AC-97 Codec on the card. The External Mixer section is separately used by the audio
recording/mixing applications with support for up to 24bit/96kHz.
The Mic In, Line-In, Line-Out, Aux and CD-In are routed through the AC-97 Codec on the
AudioDSP24 and are controlled by the Internal Mixer.
S/PDIF I/O are connected to the XG DB I digital I/O board via the External Links function.
S/PDIF Master Clock rates are set in the Hardware Settings and can be synchronized via an
external S/PDIF source or internally on the Audio DSP 24. The default setting is 44.1kHz.
Up to 4 external ADC and DAC boxes can be routed through the Audio DSP24. The input and
outputs of these external boxes are connected to the External Mixer.

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V. Hardware installation
Make sure the computer is switched off and unplugged. Remove the external computer cover.
Check that you have connected the Audio DSP 24 and the XG DB I correctly as described above.
Insert the Audio DSP 24 PCI card into a free PCI slot making sure that it is pressed firmly into
position and secure it to the computer case. Position the XG DB I along side and secure it to the
computer case.
The Audio DSP 24 card system consists of the main PCI card (Audio DSP24) and a secondary
daughter board (XG DB I). Hook the included gray lead wire to the CNN2 connection socket on
the Audio DSP24 and then into the daughter card to connect the cards.
You can use either the analog or digital outputs from the CD ROM drive. The CD digital output
can be connected to either the CNN3 on the Audio DSP24 or the socket marked J3 on the XG DB
I. The CD analog output can be connected to CON1 on the Audio DSP24. All required leads are
included in the packaging. Please check with your CD ROM manufacture to ensure that it supports
digital output.
If you own the Audio DSP24 MK II, please connect the 4 XLR to 15pin D-SUB cable to the 15pin
connector on the backside of the card.
External hardware connection
External converters are connected to the Audio DSP24 host card by using the thick cream colored
44-pin cable included with your system. All external converters and optional boxes can be daisy
chained using the DATA In and DATA Out 44-pin connections (H-BUS).
To connect the first external box (like the ADC&DAC2000) please follow these directions:

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Connect the long cream 44-pin lead from the 44-pin connector on the rear of the Audio DSP24 to
the DATA Out of the external converter.
Caution: never connect or disconnect the 44pin cable when the computer is turned on. Always
shot down your system before.
DIP Switch settings -you need to have oneDIP switch in the UP position. There are 10 DIP
switches on the side of the each external box (except DAC III). The down position represents OFF
for all switches. The up position represents ON for all switches. Switches 1-4 set the units unique
specific ID for software control. This is necessary so the system can differentiate individual ADC
converters or external boxes, when several units are connected to one card. At least one DIP
switch must be in the up position.
Up to four external devices can be used at the same time with the Audio DSP 24. An example
would be a system with the ADC&DAC2000 (8 channel analog I/O) and the Digital Station 2000
(ADAT and TDIF I/O).
Remember, each box needs a unique ID number. If you connect a second box, the Box ID number
controlled by the DIP switch on the right side must be different. After setting the correct DIP
switch, connect the second box using the supplied cream 44-pin cable to DATA In of the first
external box and the DATA Out of the second one.
Chapter X. contains more details about the different external boxes and other expansion options
for the SoundTrack Audio DSP24.

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After everything is connected to the card, you can re-assemble your PC and continue with the
driver and software installation.

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VI. Driver and software installation
Driver installation
The Audio DSP24 comes with a CD that contains drivers for Windows 95/98/ME and NT4. The
following instructions pertain to Windows 98 only. The installation under Windows 95 or
Windows ME is very similar.
After installation of the Audio DPS24 in a PCI slot in the computer, boot up the system. Windows
98 will detect new hardware and display the following screen.
Click Next.

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Select Search for the best driver for your device and click Next.
Check Specify a location. Type in the <drivename>:\sound\dsp24\driver in the window displayed
above and click Next. In the alternative, you can click Browse and find the above file on the CD,
then click Next.

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After Windows finds the driver you should see the above screen naming the driver file indicated in
the screenshot. Click Next.
At this window complete the installation by clicking Finish. Windows will now install the driver
for you through a series of installation screens. If you are prompted to do anything (this would be
unusual), it is usually safe to simply press Enter.

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After the driver is installed ensure the installation worked by pressing Start>Settings>Control
Panel>System>Device Manager>Sound, video and game controllers. You should see the
SoundTrack device listed there. Highlight it and click on Properties. You should see the message
This device is working properly. Click on the Resources tab, you should see the message No
conflicts. If so, congratulations are in order. You have successfully installed the drivers for the
Audio DSP24.
Software installation
After successfully installing the driver above, setup your Audio DSP24 software. Insert the
installation CD into the drive. Click Start>Run and type in <drive letter>:\sound\dsp24\setup.exe
in the window. Click OK.

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You will see the SoundTrack setup logo and see the Windows Setup indicator begin to work as
below.
Next you will see the Welcome to SoundTrack Setup window:
Click Next.

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Choose the default directory by clicking Next or select your own by clicking Browse then Next.
Choose the default Program folder name by clicking Next or type in your own and click Next. Now
you will next see the SoundTrack Audio DSP24 installation indicators.

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Just wait while the files are copied to your system. Next you will see the setup completion window
and will be asked if you wish to launch External Links:
Click Finish if you wish to Finish and launch External Links. Declick the Launch the External
Links button if you do not wish to do so and click Finish. Congratulations! You have successfully
installed the SoundTrack Audio DSP24 software.

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VII.External Links
The External Links application is the command center for the Audio DSP24 system. A small blue
icon was added to the Systray during installation. Right-clicking the mouse on the icon will open
the menu below.
Clicking on Open External Links will launch External Links.
With External Links signals can be routed in a wide variety of ways. You can define the inputs for
recording and the setup you need for monitoring. Also the routing for the outputs is made with