Huron & SNAP Documentation

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Configuring HeadScape ↓ To configure HeadScape Note: Configuration is required each time any of the HeadScape Parameters change, this is illustrated by the un-dimming of the Configure button when changes have been made to the HeadScape setup. Saving HeadScape files and the HeadScape File Format THE SIMULATION TOOLS 2. Click Delete, the selected *.htr file will be removed from the list. Once the angle channel, front impulses and end impulses have been selected the HeadScape application needs to be configured. Configuration entails the booting of DSPs and loading of filter series into the DSP card’s memory to allow realtime switching of early impulses. • Click Configure. HeadScape will load the required DSP filters and load the impulse responses into memory. Once HeadScape is configured the Configure button will dim. Once configured and saved in a workspace, the current configuration of HeadScape will be restored when that workspace is loaded. HeadScape uses a collection of impulse responses in *.SIM files to represent an acoustic space. Acoustic modelling programs (such as CATT Acoustic) have the ability to generate these SIM files automatically. A pair of short *.SIM files exist for each angle of head rotation for a particular listening position. Another pair of long SIM files exist which represent the reverberant tail of the impulse response for the room. The relationship between the short SIM files and the angles of head rotation they represent is defined in a “HeadTurn” (*.htr) file. The HeadTurn is a text file containing a list of numbers with the following format aaa.a eee.e aaa.a represents an angle from 0 to 360 degrees with 0.5 degree resolution. This angle is the angular position of the head for the specified source-receiver simulation. eee.e represents an elevation from +180 to -180 degrees with 0.5 degree resolution. This angle is the elevation of the head for the specified source-receiver simulation. HURON TECHNICAL MANUAL PAGE 120
HURON1 3840 0.0 0 1.5 0 3.0 0 4.5 0 6.0 0 7.5 0 9.0 0 10.5 0 12.0 0 Angle Elevation SIM files represented 0.0 0 h000180l.sim and h000180r.sim 1.5 0 h003180l.sim and h003180r.sim 3.0 0 h006180l.sim and h006180r.sim 4.5 0 h009180l.sim and h009180r.sim 6.0 0 h012180l.sim and h012180r.sim 7.5 0 h015180l.sim and h015180r.sim 9.0 0 h018180l.sim and h018180r.sim 10.5 0 h021180l.sim and h021180r.sim 12.0 0 h024180l.sim and h024180r.sim Angle Elevation SIM files represented 0.0 -11.5 h000157l.sim and h000157r.sim 0.0 0 h000180l.sim and h000180r.sim 0.0 11.5 h000203l.sim and h000203r.sim 0.0 22.0 h000224l.sim and h000224r.sim 6.0 -11.5 h012157l.sim and h012157r.sim 6.0 0 h012180l.sim and h012180r.sim 6.0 11.5 h012203l.sim and h012203r.sim 6.0 22.0 h012224l.sim and h012224r.sim 12.0 -11.5 h024157l.sim and h024157r.sim DSP Usage THE SIMULATION TOOLS Each number represents a pair of SIM files for the specified angle. The SIM file names will be AAAEEEl.sim and AAAEEEr.sim, where AAA=2 x aaa.a and EEE=180 + (2 x eee.e.) For example, below is the first 10 lines of an example HeadTurn file. HURON1 specifies the version number of the HeadTurn file. 3840 represents the length of the head SIM files created. If this length is greater than the maximum head filter length, then HeadScape will truncate this length to its maximum (of 3585). Each of the following numbers represent the SIM file pair for the specified angle. The relationship between the numbers in the HeadTurn file and the actual SIM files is as follows: A HeadTurn file can also specify elevations, as follows: HeadScape uses 2 DSPs for the tail filters representing the room response, and 2 DSPs for each sound source in the simulation. HURON TECHNICAL MANUAL PAGE 121
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Huron Technical Manual Software ver
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Copyright © 1995-2003 Lake Technol
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FCC Declaration (USA only) for Huro
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Table of Contents DISCLAIMER.......
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TABLE OF CONTENTS FEATURES ........
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TABLE OF CONTENTS OPERATION .......
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TABLE OF CONTENTS DC BLOCK.........
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TABLE OF CONTENTS THE 96KHZ EQ ....
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Introduction to the Huron Thank you
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Features Applications Note: Any ISA
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INTRODUCTION TO THE HURON • Optio
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Installing New Hardware Components
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↓ To change the ISA memory addres
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↓ Connecting with the patch panel
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Huron System Tools Huron Simulation
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General Installation ↓ To install
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Introduction to the System Tools Th
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Operation Starting ↓ To start the
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Configuration Functions Internal/Ex
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Displaying, Hiding and Terminating
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Stopping VRack ↓ To exit the VRac
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Patching ↓ To connect a pair of p
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Tip: Even if two patch points are c
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Introduction Features The IO Manage
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Adjusting Volumes ↓ To adjust the
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↓ To set a digital output to prof
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↓ To close a split window Summary
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THE SIMULATION TOOLS InsideTrak, Fa
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THE SIMULATION TOOLS • Angle chan
Page 70 and 71: Z THE SIMULATION TOOLS Figure 22
Page 73 and 74: Features Operation Object list Add
Page 75 and 76: For example: if a Source Object (ch
Page 77 and 78: Editing a BinScape Object ↓ To ed
Page 79 and 80: Features Operation The Space Array
Page 81 and 82: Adding an Object to the Space Array
Page 83 and 84: Near Field Adding B-format Input Se
Page 85 and 86: Inserting speakers ↓ To insert a
Page 87: Summary 25 20 15 Number of inputs S
Page 90 and 91: The simulated acoustic spaces used
Page 92 and 93: ↓ To access the Sound Field Filte
Page 94 and 95: Directivity Factor Name d = 0.000 O
Page 96 and 97: Setting Minimum Source Distance ↓
Page 98 and 99: Adding, Inserting, Removing and Edi
Page 100 and 101: DSP Usage Summary THE SIMULATION TO
Page 102 and 103: ↓ To access the Binaural Decoder
Page 104 and 105: Summary THE SIMULATION TOOLS • Th
Page 106 and 107: Starting ↓ To access MultiScape F
Page 108 and 109: Editing a Sound Object ↓ To edit
Page 110 and 111: B-format Decode Mode B-format Mode
Page 112 and 113: Editing Headphone Objects ↓ To ed
Page 114 and 115: Adding Rooms, Deleting Rooms Adding
Page 116 and 117: Summary THE SIMULATION TOOLS • Mu
Page 118 and 119: Starting ↓ To access HeadScape Se
Page 122 and 123: Summary THE SIMULATION TOOLS • He
Page 124 and 125: Scene (List of Tracks) Track (List
Page 126 and 127: Figure 45 - Scene Properties dialog
Page 128 and 129: Manipulating Tracks ↓ To add a tr
Page 130 and 131: ↓ Exporting a trajectory to a Loc
Page 133: Other Simulation Tools This sub-sec
Page 136 and 137: Operation Starting ↓ To start the
Page 138 and 139: Locator Commands Loading and Playin
Page 141 and 142: Features Requirements The WavePlaye
Page 143 and 144: Figure 49 — The WavePlayer-2 inte
Page 145 and 146: ↓ Setting the RME Hammerfall as t
Page 147 and 148: Note: The Waveplayer has now been s
Page 149: Summary OTHER SIMULATION TOOLS •
Page 152 and 153: Operation Starting ↓ To start the
Page 154 and 155: ↓ To select a microphone setting
Page 156 and 157: ↓ To specify the Echo settings
Page 159 and 160: Integration under 32 bit Windows In
Page 161 and 162: Positional Commands Note: The numbe
Page 163 and 164: OTHER SIMULATION TOOLS SNAPGetRooms
Page 165 and 166: MultiScape Commands Parameter Descr
Page 167 and 168: Space Array Commands Parameter Desc
Page 169 and 170: VMixer Commands Parameter Descripti
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WavePlayer-2 Commands OTHER SIMULAT
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OTHER SIMULATION TOOLS SNAPWP2Pause
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OTHER SIMULATION TOOLS SNAPSetWaveH
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Command Reference This section desc
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WavePlayer Commands OTHER SIMULATIO
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TCP/IP Commands OTHER SIMULATION TO
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Introduction Features Overview of t
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Operation Starting and Saving ↓ T
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↓ To add a FIR filter to the Filt
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Currently selected patch point icon
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Introduction 96kHz Convolver Hardwa
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Patching the 96kHz Convolver Loadin
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Starting Note: If using measure to
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Selecting the Output File ↓ To se
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Signal Generation via MatLab Script
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Introduction 96kHz Measurement Tool
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Loading the 96kHz Measurement Tool
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; comments ( (dtype [bit16 | bit20
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Introduction Operation Starting ↓
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Dfilter Windows Interface ↓ To st
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Lvec Windows Interface ↓ To start
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Padvec Windows Interface ↓ To sta
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Permute Windows Interface ↓ To st
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Wingen Windows Interface ↓ To sta
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SigGen Windows Interface ↓ To sta
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↓ To generate a piecewise linear
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Vector Arithmetic Windows Interface
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Introduction Features Operation ↓
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Printing ↓ To print the SIM file
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Altering the Axes ↓ To display sa
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Summary THE ENGINEERING TOOLS • P
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Note: In this version of SimScale i
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Usage Simtowav Simtowav is a comman
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Hamming Window Blackman Window Harr
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Introduction to the Programming Too
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Operation Starting Lake EQ ↓ To a
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Slider Widget Toolbar Creating an E
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High Shelf Tip: All the sliders can
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Calculating the Equalisation Curve
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↓ To lock a Slider ↓ To unlock
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Limits ↓ To alter the graph limit
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Introduction 96kHz EQ Hardware Requ
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Loading EQ 96kHz THE EQUALISATION T
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Features Operation The VMixer The V
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Note: When increasing the size of V
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Muting ↓ To mute all output chann
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Operation Starting ↓ To access th
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Operation Starting ↓ To access th
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Summary OTHER TOOLS • The BFormat
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I/O Test Patching Selecting the For
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Summary • To utilise I/O Test an
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Fixed Point Digital Audio Data Repr
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↓ SimScale Avoiding Large Frequen
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Figure 99 — SNR of the 16 bit A/D
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Mechanical Specifications 1 3 Figur
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Audio Input Levels Managing Audio S
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HURON TECHNICAL REFERENCE • In ge
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Angle Channels Glossary Angle chann
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Order of Reflections HURON TECHNICA
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SNR (Signal to Noise Ratio) HURON T
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↓ To specify an auto-logon domain
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