Huron & SNAP Documentation

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↓ To select a microphone setting ↓ To specify the file root and name of the room response Specify the file root and name OTHER SIMULATION TOOLS characterised by a directivity factor and can be placed anywhere within the simulated room. The room response generated using the monophonic microphone is characterised by a single impulse response (*.SIM) file. Stereo Microphones: This setting simulates a pair of Blumlein Microphones. This stereo pair can be imagined as two microphones joined at the rear, with an angle of separation measured between the pickups of the microphones. It is assumed that the microphones are identical and have the same directivity factor. The room response generated using the stereo pair is characterised by two impulse files named *L.SIM, *R.SIM respectively. B-format Microphone: This setting simulates a B-format microphone which records four separate signals. These signals represent the X,Y,Z and Omni (ω) encoding of the room impulse. Combined, these signals provide responses which allow clear sound localisation using Ambisonics. The room responses generated using the B-format setting are characterised by four impulse files named *X.SIM, *Y.SIM, *Z.SIM and *W.SIM respectively. • Click Mono Microphone for monophonic microphone output. —or — Click Blumlein Stereo for Stereo microphone output. —or — Click B-format for B-format microphone output. The file root and name specify the directory to which impulse responses are saved and the name of the impulse response files (*.SIM) produced by the simulation. For example, a file root c:\Huron32\rooms Would save the impulse responses in the directory c:\Huron32\rooms, the sim files would be named ROOM*.SIM, where * represents any special file designators (ie. R,L,X,Y,Z,W). If AniScape mode is selected, Make Room will also generate a geometry file (*.GEO) in the file root directory. 1. Click Browse. 2. Type or Select the output directory and specify a name for the output files. 3. Click OK. Specify sample rate and length in samples The sample rate specifies the number of samples of the room response to be taken during one second. AniScape and MultiScape use sampling rates of 16000 due to band limiting within the programs, while most other Huron applications (including Space Array) utilise a sampling rate of 48000. These HURON TECHNICAL MANUAL PAGE 154
↓ To set the sample rate ↓ To set the length of the impulse ↓ To specify the Room Size ↓ To specify the Room Shape ↓ To place a sound source Specify room size and a room shape Placing a sound source Specify Echo settings OTHER SIMULATION TOOLS “standard” rates may change if the external clock feature of the VRack interface is being used. The length in samples specifies the length of the impulse response of the room. The minimum number of samples required to capture a whole room response can be determined by multiplying the reverberation time (in seconds) by the sample rate. • Type the number of samples per second (Hz) in the Sample Rate Box. 1. Determine the minimum sample length by multiplying total reverberation time by the sample rate. 2. Type the total sample length in samples in the Length Box. The room response is statistically generated using two main variables, The room size and the room shape. Room Size is described using the Mean Free Path. The Mean Free Path is a statistical measure stated as “the average (mean) distance a sound originating at one wall has to travel to reach another wall in meters”. The Room Shape is a random number seed, used during calculations to provide a room shape. Due to the nature of the algorithm that Make Room uses, a specific seed will consistently produce the same sounding room response, these room responses are fairly constant even as the room size changes. • Type a number in meters for the size of the room in the Room Size box. • Type a number between 0 and 1 in the Room Shape box. Placing a sound source involves specifying the location of the sound source in relation to the microphone. The microphone is always assumed to be at the centre of the room, thus distances and the location of the sound source are given in meters and degrees from this central point. The values required are the distance from the microphone in meters, the azimuth of the sound source in degrees and the elevation of the sound source in degrees. 1. Type a value in meters in the Mic. Distance box. 2. Type a value in degrees in the Src Azimuth box. 3. Type a value in degrees in the Src Elevation box. Two Echo settings must be specified, HURON TECHNICAL MANUAL PAGE 155
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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
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Z THE SIMULATION TOOLS Figure 22
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Features Operation Object list Add
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For example: if a Source Object (ch
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Editing a BinScape Object ↓ To ed
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Features Operation The Space Array
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Adding an Object to the Space Array
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Near Field Adding B-format Input Se
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Inserting speakers ↓ To insert a
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Summary 25 20 15 Number of inputs S
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The simulated acoustic spaces used
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↓ To access the Sound Field Filte
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Directivity Factor Name d = 0.000 O
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Setting Minimum Source Distance ↓
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Adding, Inserting, Removing and Edi
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DSP Usage Summary THE SIMULATION TO
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↓ 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 120 and 121: Configuring HeadScape ↓ To config
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 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
Page 171 and 172: WavePlayer-2 Commands OTHER SIMULAT
Page 173 and 174: OTHER SIMULATION TOOLS SNAPWP2Pause
Page 175 and 176: OTHER SIMULATION TOOLS SNAPSetWaveH
Page 177 and 178: Command Reference This section desc
Page 179 and 180: WavePlayer Commands OTHER SIMULATIO
Page 181: TCP/IP Commands OTHER SIMULATION TO
Page 185 and 186: Introduction Features Overview of t
Page 187 and 188: Operation Starting and Saving ↓ T
Page 189 and 190: ↓ To add a FIR filter to the Filt
Page 191 and 192: Currently selected patch point icon
Page 193 and 194: Introduction 96kHz Convolver Hardwa
Page 195: Patching the 96kHz Convolver Loadin
Page 198 and 199: Starting Note: If using measure to
Page 200 and 201: Selecting the Output File ↓ To se
Page 202 and 203: 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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