ASI5811/ASI5810
ASI5811/ASI5810
LOW PROFILE PCI EXPRESS AUDIO ADAPTERS
1 DESCRIPTION
2 FEATURES
The ASI5811and ASI5810 are professional PCIe audio
adapters designed for use in radio broadcast
production.

Four stereo streams of PCM playback

Two stereo streams of PCM record

Balanced stereo analog input and output with +24dBu
I/O.

PCIe interface.
They offer two stereo record streams from either a
balanced analog input or AES/EBU digital input and
four stereo play streams mixed to both a balanced
analog output and an AES/EBU digital output.

GPIO: Four opto inputs and two relay outputs.
They also include GPIO in the form of four opto-isolated
inputs and two relay isolated outputs.

AES/EBU digital input and output with hardware Sample
Rate Converter (SRC) on the input.
The ASI5811 also includes a microphone input, with
low noise pre-amp and a 48V phantom supply.

Low noise microphone input with 48V phantom supply
and DSP based compressor/limiter and 5-band equalizer
(ASI5811 only, no mic input on ASI5810)

24bit analog-to-digital and digital-to-analog converters 100dB SNR and 0.0025% THD+N

11 to 192kHz sample rates

MRX™ multi rate mixing technology supports digital
mixing of multiple sample rates

SoundGuard™ transient voltage suppression protects
against lightning and other high voltage surges on all I/O

Up to 8 cards in one system

Windows 10, 8.x, 7, Server 2008/2012 and Linux drivers
available
Breakout cable CBL1312 with XLR connectors
supplied.
ASI5811
Line Out 1
Play 1
AES3 Out 1
Play 2
Play 3
Play 4
AES3 In 1
Record 1
Line In 1
Record 2
Mic In
Global Adapter Clock
used to drive A/D, D/A,
and AES3 Out
Adapter Clock
AES3 In 1
Key :
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Record Stream
Lev el
Meter
Compander
Play Stream
Mixer
Sample Rate Conv erter
Equalizer
Input/Output
Multiplexer
Channel Mode
Phantom Power
Volume
AES/EBU Tx/Rx
Clock Source
Mic Input
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3 SPECIFICATIONS
BALANCED INPUT/OUTPUT
Connector
Input Level
Input Impedance
Output Level
Load Impedance
Output Impedance
Dynamic Range [1]
THD+N [2]
Sample Precision
Frequency Response
Channel Crosstalk
Channel phase mismatch
Channel level mismatch
DB-26HD Female with XLRs on breakout cable CBL1312.
-10 to +24dBu in 1dBu steps
20K ohms
-10 to +24dBu in 1dBu steps
600ohms or greater
50ohms
>=100dB (record or play)
=<-94dB (0.002%)(record or play)
24bit Oversampling
20Hz to 20kHz +/-0.5dB @ 48kHz (play/record)
20Hz to 40kHz +0.5/-1dB @ 96kHz (play/record)
20Hz to 80kHz +0.5/-3dB @ 192kHz (play)
20Hz to 67kHz +0.5/-3dB @ 192kHz (record)
-120dB
1.25degrees
0.4dB
MICROPHONE INPUT (ASI5811
only, no mic on ASI5810)
Connector
Input Gain
Input Impedance
Phantom Power
Dynamic Range [1]
THD+N [2]
Frequency Response
XLR on breakout cable CBL1312
0 to 60dB software adjustable
6.8K ohms (+ or – to ground)
48V +/- 4V, software selectable on and off.
90dB @ 40dB gain
0.01% @ 40dB gain
20Hz to 20kHz +/-0.5dB
DIGITAL INPUT/OUTPUT
Type
Connector
Sample Rates
Sample Precision
AES3-1992 (EIAJ CP-340 Type I / IEC-958 Professional)
DB-26HD Female with XLRs on breakout cable CBL1312.
32, 44.1, 48, 88.2, 96, 176.4 and 192kHz
24bit
GPIO
Opto-isolated inputs
Isolation
Input Drive
Relay-isolated Outputs
Isolation
Contact Rating
2000VRMA
4mA typical with internal 5V supply and internal 1K current limiting resistor
1500VRMS between relay contacts and coil
Up to 220VDC/250VAC and 2A, 60W maximum
SAMPLE RATE CLOCK
Internal
AES/EBU In
32, 44.1, 48, 88.2, 96, 176.4 and 192kHz
32, 44.1, 48, 88.2, 96, 176.4 and 192kHz
SIGNAL PROCESSING
DSP
Memory
Audio Formats
Texas Instruments TMS320DM8147@600MHz
64MB
8 bit unsigned PCM
16bit signed PCM
32bit IEEE floating point PCM
BREAKOUT CABLE (INCLUDED)
Analog+AES/EBU+GPIO
CBL1312: DB-26HD to 2 in / 2 out XLR (Analog), 1 in / 1 out XLR (AES/EBU) and
DB15 Male (GPIO)
GENERAL
Bus
Dimensions
Weight
Operating Temperature
Power Requirements
X1 PCI Express.
Low profile PCI form factor – 4.375" x 2.75" x 0.6" (111mm x 70mm x 15mm)
8 oz (227g) max
0C to 70C
+3.3V @ TBD, +12V @ TBD
[1] - Dynamic Range is the difference between a 1kHz digital full-scale sinewave and digital zero using an A weighting filter
[2] - THD+N measured using a +20dBu 1kHz sinewave sampled at 48kHz and A weighting filter
[3] - Using a 96kHz sampling rate
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4 REVISIONS
Date
21 January 2016
20 October 2016
www.audioscience.com
Description
st
1 release
Corrected error in pinout on page 5
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5 CONTENTS
1
DESCRIPTION ....................................................................................................................................................1
2
FEATURES .........................................................................................................................................................1
3
SPECIFICATIONS ..............................................................................................................................................2
4
REVISIONS .........................................................................................................................................................3
5
CONTENTS .........................................................................................................................................................4
6
CONNECTORS ...................................................................................................................................................5
6.1
7
DB-26HD: MICROPHONE, ANALOG, AES/EBU AND GPIO ........................................................................................... 5
BREAKOUT CABLE ...........................................................................................................................................5
7.1
8
GPIO DB15 PINOUTS AND CONNECTIONS ..................................................................................................................... 6
HARDWARE INSTALLATION............................................................................................................................7
8.1 SETTING ADAPTER INDEX – ONE ADAPTER IN THE PC ................................................................................................... 7
8.1.1
Setting Adapter Index - Two or More Adapters in the PC
7
9
SOFTWARE INSTALLATION ............................................................................................................................8
9.1 DRIVERS FOR WINDOWS 10, 8.X, 7, SERVER 2008, SERVER 2012................................................................................... 8
9.1.1
Combo Driver
8
9.1.2
ASIO
8
9.1.3
Driver Failure
8
9.2 DRIVERS FOR LINUX....................................................................................................................................................... 8
9.3 APPLICATIONS FOR WINDOWS ....................................................................................................................................... 8
9.3.1
ASIControl
8
10
OPERATION USING ASICONTROL ............................................................................................................9
11
USER INTERFACE .......................................................................................................................................9
11.1
ASICONTROL LAYOUT .............................................................................................................................................. 9
11.1.1
Adapter List Window
9
11.1.2
Adapter Topology Window
9
11.1.3
Node Controls Window
10
11.2
CONTROLS ............................................................................................................................................................... 10
11.2.2
Volume
10
11.3
METER..................................................................................................................................................................... 11
11.3.1
Interface
11
11.3.2
Developer
11
11.4
CHANNEL_MODE .................................................................................................................................................... 11
11.4.1
Interface
11
11.5
CLOCKSOURCEIN .................................................................................................................................................... 12
11.5.1
Interface
12
11.6
SAMPLE RATE CLOCK AND MRX MIXER ................................................................................................................ 13
11.6.1
Developer
13
12
AUDIO FORMATS ..................................................................................................................................... 13
13
REFERENCES ........................................................................................................................................... 14
13.1
SPECIFICATIONS ...................................................................................................................................................... 14
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6 CONNECTORS
6.1
DB-26HD: Microphone, Analog, AES/EBU and GPIO
[9] Microphone In +*
DB-26HD
(Female)
Line In Right + [26]
[8] Analog Ground
Line In Right – [25]
[7] Line In Left –
Line Out Right + [24]
[6] Line Out Left –
Line Out Right – [23]
[5] GPIO VOPT
GPIO Opto 2 – [22]
[4] GPIO Opto 1
GPIO Opto 4 – [21]
[3] GPIO Relay 1A
AES/EBU Out + [20]
[2] GPIO Relay 2A
AES/EBU Out – [19]
[1] AES/EBU In +
[18] Microphone In -*
[17] Line In Left +
[16] Line Out Left +
[15] Digital Ground
[14] GPIO +3.3V
[13] GPIO Opto 3
[12] GPIO Relay 1B
[11] GPIO Relay 2B
[10] AES/EBU In -
*ASI5811 only – no microphone on ASI5810
7 BREAKOUT CABLE
The ASI5811/ASI5810 breakout cable has p/n CBL1312. It breaks out the DB-26HD connector into the following:






Left & Right Line Input on XLR female
Left & Right Line Output on XLR male
AES/EBU Input on XLR female
AES/EBU Output on XLR male
Microphone Input on XLR female (ASI5811 only)
GPIO on DB-15
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7.1
GPIO DB15 Pinouts and Connections
- [8]
- [7]
- [6]
Ground [5]
GPIO Relay 2B [4]
GPIO Relay 2A [3]
GPIO Relay 1B [2]
GPIO Relay 1A [1]
[15] [14] GPIO Opto 4
[13] GPIO Opto 3
[12] GPIO Opto 2
[11] GPIO Opto 1
[10] GPIO VOPT
[9] +3.3V
The following diagrams show how to connect the GPIO for isolated and non-isolated cases
Isolated
External switch
RLYxA
OPTx
VOPT
RLYxB
x=1,2
TTL Compatible Non-isolated
x=1,2
External switch
x=1,2
RLYxA
OPTx
RLYxB
VOPT
+3.3V
+3.3V
GND
GND
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8 HARDWARE INSTALLATION
This section explains how to install one or more AudioScience adapters in a computer.
8.1
Setting Adapter Index – One Adapter in the PC
1. Make sure your computer is turned off.
2. PCI adapters should be installed in any empty PCI slot and PCIe adapters should be installed in any x1 (or
greater) PCIe slot.
3. Make sure the adapter jumper is set to adapter index #1, the factory default. For a new card no changes need
to be made. For an AudioScience adapter from another installation, check that it is set to adapter index #1.
Depending on the adapter family, there are different ways of setting the adapter index.
For ASI5000 and ASI6000 families, there is
an adapter jumper that must be set. The left
most position represents adapter index #1.
Adapter Jumper set
to Adapter #1
For ASI5300, ASI6300, ASI8700, and
ASI8900 families, there is a rotary switch.
NOTE: Position 0 (zero) represents adapter
#1, position 1 is adapter #2, etc.
Adapter Index switch
set to Adapter #1
4. Turn on the computer and let it boot. Under Windows, a dialog box will pop up informing you that the computer
has detected a new Multimedia Audio card. Cancel out of this dialog box and proceed to the software installation
section of this datasheet.
8.1.1
Setting Adapter Index - Two or More Adapters in the PC
1. Make sure your computer is turned off.
2. PCI adapters should be installed in any empty PCI slots and PCIe adapters should be installed in any x1 (or
greater) PCIe slots. Different adapter types can coexist in the same computer; for example, an ASI6416 and
ASI8921 will work correctly if installed in the same PC. Different adapter types still require unique adapter index
numbers.
3. Each adapter in the PC needs to have its adapter jumper/rotary switch position set to unique numbers. For
example if you are installing two adapters, the first one would be set to adapter index #1 and the second to
adapter index #2.
3.1. For ASI5000 and ASI6000 families, the position to the right of index #1, when jumpered, represents adapter
index #2. The next position represents #3, and the rightmost position, when jumpered, represents #4.
3.2. For ASI5300, ASI6300, ASI8700, and ASI8900 families, rotate the rotary switch to indicate what position is
required.
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9 SOFTWARE INSTALLATION
AudioScience makes audio adapters and drivers for various operating systems. Enhancements to an adapter’s
utility come from the integrators software that uses the audio driver to implement sophisticated audio playback
and recording functions.
9.1
Drivers for Windows 10, 8.x, 7, Server 2008, Server 2012
Typically, drivers are not included with the hardware and will need to be downloaded from the AudioScience
website. They can be found here: http://www.audioscience.com/internet/download/win_drivers.htm
The first step is to determine what type of driver is needed for your operating system. Drivers are available for 32bit and 64-bit Windows systems.
Driver 3.10 and later present the user with three install options during installation:
 Install Standard PCI/PCIe Driver.
 Install Standard + Network Audio Driver.
 Remove all driver components
Traditional installs should select the first of these options. Users of AudioScience CobraNet and AVB products
should select the second option with the “+Network Audio Driver.” in the text.
9.1.1
Combo Driver
The Combo driver installs WDM devices by default and presents an option to “Install legacy 32-bit WAVE driver”
in case your application requires it. Download the file named ASICOMBO_xxxxxx.EXE from
www.audioscience.com and run it (_xxxxxx is the version number). After the EXE has run, reboot your computer
and the audio adapter will be operational. If the cover is off the computer, one can see one or two blinking LEDs
on top of the card indicating its DSP is running and communicating with the driver.
Verify that the adapter is running using ASIControl (see ASIControl section in this document).
9.1.2
ASIO
All AudioScience drivers also install an ASIO driver interface. It is installed by default.
9.1.3
Driver Failure
In the event that an adapter’s driver fails to load correctly, the OS’s event viewer should be checked. The event
log is accessed from the Administrative Tools applet in Windows Control Panel under Event Viewer. The
Windows Logs\System view should be selected.
If two or more adapters are installed in the same system, the first thing to check is that the adapters were
assigned unique adapter numbers. If issues persist, please email support@audioscience.com.
9.2
Drivers for Linux
The latest Linux driver can be downloaded from the AudioScience website – www.audioscience.com
9.3
Applications for Windows
AudioScience provides ASIControl for adapter set-up and configuration.
9.3.1
ASIControl
All Windows drivers install an AudioScience application called ASIControl that can be used to setup and verify
functionality of adapters. ASIControl provides a common interface for users across all driver types.
From the Windows Start menu, navigate to StartProgramsAudioScience and run the ASIControl program.
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10 OPERATION USING ASICONTROL
Using ASIControl, the ASI5811/ASI5810 will look similar to this:
Adapter
List
Window
Node
Controls
Window
Adapter
Topology
Window
11 USER INTERFACE
11.1 ASIControl Layout
ASIControl consists of three main windows: the adapter list in the top portion of the window, the adapter topology
view on the left hand side, and the node control list on the right hand side.
11.1.1 Adapter List Window
The top portion of ASIControl shows a list of all the adapters that the application has found. By default, only bus
based (i.e. PCI and/or PCI Express) adapters will be shown. If the network portion of the driver is installed (by
selecting “Install Standard + Networked Audio Driver” after running the driver installer) and “Local PCI(e) +
Networked adapters” is selected from ASIControl’s OptionsConfigure adapter interface, then AudioScience and
other third party CobraNet devices will be shown.
Adapters are listed in order of adapter index. For bus-based adapters, this is determined by the adapter index
jumper on the card. For AudioScience CobraNet devices this is calculated from the unit’s MAC address. Third
party CobraNet devices are listed last as they have no AudioScience index.
11.1.2 Adapter Topology Window
The left hand side of ASIControl contains the topology view of the adapter. It is essentially a block diagram of the
device showing the available physical inputs and outputs on the right hand side of the black, vertical ‘bus’ line. On
the left hand side of the bus line, bus-based adapters show player and recorder streams, while CobraNet
adapters show their network connections.
Each of the inputs and outputs is referred to as a node and each Node contains one or more controls. The
topology shows each control as a small icon. A non-exhaustive list of nodes follows:
Line In
Player
CobraNet In
Line Out
Recorder
AES/EBU In
Tuner
AES/EBU Out
Clock Source In
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CobraNet Out
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Hovering the mouse over a particular node will highlight it. Clicking on a node will bring up the controls resident
on that node in the right hand control list.
There is an adapter node in the top left corner of the topology window. Clicking on this will show adapter-specific
controls and properties on the right hand side. Not all adapters have all nodes.
11.1.3 Node Controls Window
The right hand side of ASIControl shows the controls associated with the selected node in the topology view. The
controls are arranged, from top to bottom, in order of audio signal flow, i.e. the audio signal can be viewed as
entering the node at the top control and leaving at the bottom control. Controls may be used to either manipulate
the audio as it passes through the node, or report back control status information.
For a comprehensive listing of controls and how to operate ASIControl, please see the ASIControl manual
available from www.audioscience.com and also installed by the driver. Not all adapters have all controls.
The section below lists some common and any specific controls, as seen in ASIControl, for this adapter.
11.2 Controls
The ASI581x supports two adapter modes: 1-Play and 4-Play.
11.2.1.1 1-Play
This mode supports 1 Play stream and 1 record stream.
11.2.1.2 4-Play
This mode supports 4 Play streams and 2 Record streams with full mixing capabilities.
11.2.2 Volume
The Volume control allows the audio signal’s gain to be altered in the range of –100 to +20dB.
11.2.2.1 Interface
A Player volume in ASIControl.
Left and Right display boxes:
Displays the gain settings that the slider bars are set to.
Slider Bars:
Click on the bar with the mouse and drag to desired gain. Once the bars are selected, the left and right arrow
keys can also be used to change the settings.
Lock:
When checked, locks the left and right channels to the same gain value. When unchecked, allows the left and
right channels to have independent gains. (Note that if an adapter is in SSX2 mode, the Player volumes cannot
be unlocked to move the left and right channels independently.)
Mute:
Check this box to mute the volume.
Fade:
When pressed, automatically fades the volume to the opposite end of the scale.
11.2.2.2 Developer
11.2.2.2.1 Windows APIs
Wave/Mixer – MIXERCONTROL_CONTROLTYPE_VOLUME
This is a Windows standard volume control. Settings are in the range of 0 to 65535, where 0 completely mutes
the output and 65535 is the maximum volume.
HPI – HPI_Volume APIs.
ASX – ASX_Volume APIs.
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DirectSound – TBD.
11.2.2.2.2 Linux APIs
HPI –HPI_Volume APIs.
ASX –ASX_Volume APIs.
ALSA – TBD.
11.3 Meter
Meters in ASIControl are located on audio nodes and display the audio level as the audio signal passes through
the node. Most AudioScience devices return both RMS and peak level readings and ASIControl displays both
simultaneously.
11.3.1 Interface
A stereo peak meter display. The RMS is the green bar and the peak is the yellow bar.
To the right of the peak meter is the absolute readings in dBFS. These can be useful when testing input tones of a
specific known level.
11.3.2 Developer
11.3.2.1 Windows APIs
Wave/Mixer – Meters are read using mixerGetControlDetails() on a control of type signed and with type “Peak”
the name “Peak Meter”. A minimum value is 0 and maximum is 32767. The interface returns the peak readings
only, not the RSM level. It confirms to expected Windows functionality.
HPI – Meters are read using the HPI_Meterxxx() API.
ASX – Meters are read using the ASX_Meter_xxx() API.
DirectSound – TBD.
11.3.2.2 Linux APIs
HPI – Meters are read using the HPI_Meterxxx() API.
ASX – Meters are read using the ASX_Meter_xxx() API.
ALSA – TBD.
11.4 Channel_Mode
The channel mode is a mechanism for handling mono to stereo conversions and directing the output to either left
or right channels, as well as outputting left to stereo and right to stereo.
11.4.1 Interface
ASIControl view of a player’s channel mode control.
Default playback of either mono or stereo files causes audio to be output from the player on both the left and right
audio channels. The channel mode control can allow the audio to be directed to either the left only or the right
only. Select a channel mode setting from the dropdown list.
Valid settings are:
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Normal – left channel out left channel, right channel out right channel
Left
Right
Left
Right
Swap – left channel out right channel and right channel out left channel
Left
Right
Left
Right
Left_to_stereo – left channel out to both left and right channels
Left
Right
Left
Right
Right_to_stereo – right channel out to both left and right channels
Left
Right
Left
Right
Stereo_to_left – left and right channels out to left channel
Left
Right
+
Left
Right
Stereo_to_right – left and right channels out to right channel
Left
Right
+
Left
Right
The Stereo_to_left and Stereo_to_right operations perform a sum of the left and right channels and then divides
the result by 2
11.5 ClockSourceIn
In the topology pane of ASIControl, click on Clock Source 1
and in the node pane, select where the adapter is to get its clock source from using the Clock Source dropdown
list, as well as the sample rate to use if clocking from adapter.
Note that for CobraNet and Livewire devices, the sample rate is fixed at 48kHz.
11.5.1 Interface
Clock Source information as seen in ASIControl.
Local Rate:
Select from the dropdown list the supported rates of the adapter.
Clock Source:
From the dropdown list, select the source for the adapter’s clocking. Selections, depending on the adapter,
include:
- Local – adapter rate is used; select a supported sample rate in Local Rate dropdown list
- Word – Word clock from Word clock BNC connector on digital cable loom (or BOB1024)
- WordHeader – Word clock from header on adapter (ASI61xx only)
- AES/EBU Sync – AES/EBU Sync from AES/EBU Sync XLR connector on digital cable loom (or
BOB1024)
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-
AES/EBU In 1-4 – rate taken from specific digital input
AES/EBU Auto – rate taken from first valid digital input; looks at digital input 1 first, then up to digital
input 4
Blu link
Adapter Rate:
Displays the current adapter operating rate
11.6 Sample Rate Clock and MRX Mixer
The ASI5811 sample rate clock is used to drive the MRX digital mixer, Analog to Digital Converter (ADC), Digital
to Analog Converter (DAC) and AES/EBU output. There are two sources of sample rate clock – internal and the
AES/EBU input.
The internal adapter clock is generated from a low jitter frequency synthesizer and may be set to 32, 44.1, 48,
88.2 and 96kHz. When a valid AES/EBU bitstream is connected to the AES/EBU input, the card will
automatically switch to using this as the sample rate clock. This is needed so that digital audio from the
AES/EBU input can be synchronized with the other audio streams present in the mixer. There is no way to
override this.
Note that the sample rate clock does not determine the sample rates of the audio streams that may be played and
recorded. These are independently set using the MRX multi rate mixer, so that, for instance, you can have the
adapter running at 96kHz, but be playing files of 44.1 and 48kHz and recording files of 32 and 88.2khz.
In ASIControl, click on the ClockSourceIn 1 node in the topology pane to access the Local Rate, Clock Source,
and Adapter Rate. Local Rate is used to select the internal adapter rate.
11.6.1 Developer
11.6.1.1 Windows APIs
HPI – Use the HPI_SampleClock_XXXX APIs.
12 AUDIO FORMATS
The ASI5811 supports record and play of the following formats:
Format
8 bit unsigned PCM
16 bit signed PCM
32 bit signed PCM
32 bit floating point PCM (+/-1.0)
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HPI format
HPI_FORMAT_PCM8_UNSIGNED
HPI_FORMAT_PCM16_SIGNED
HPI_FORMAT_PCM32_SIGNED
HPI_FORMAT_PCM32_FLOAT
13
Windows format
WAVE_FORMAT_PCM, wBitsPerSample=8
WAVE_FORMAT_PCM, wBitsPerSample=16
WAVE_FORMAT_PCM, wBitsPerSample=32
WAVE_FORMAT_IEEE_FLOAT
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13 REFERENCES
13.1 Specifications
SPCWAVX.PDF - WavX - AudioScience Windows Multimedia Extensions
SPCHPI.PDF - Hardware Programming Interface (HPI) Specification
All these documents are available from www.audioscience.com in the Technical Info section
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