Huron & SNAP Documentation

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Calculating the Equalisation Curve ↓ To toggle the automatic calculation of responses ↓ To manually calculate and download the equalisation curve Bypass the Equalisation Curve ↓ To bypass the equalisation curve Setting the EQ Filter Length THE EQUALISATION TOOLS After an adjustment has been made to sliders on the EQ canvass the response is automatically calculated. If calculations take a long time, this auto-calculate feature may be turned off. With this feature turned off the effects of any adjustments are not calculated and downloaded into the hardware until the calculate command is given. Select Auto Calculate from the Filter menu. • Click . — or — Select Calculate Now from the Filter menu. — or — Press F9. The curve will be calculated and downloaded. In order to compare untreated signals with equalised signals it is possible to switch sound so that it bypasses the equalisation curve. • Click . This will load a flat filter in to the system, and therefore bypass any slider configuration for that canvass. Lake EQ operates using convolution. This involves the construction of what is known as a filter from the positions of all the sliders and downloading this filter to DSP boards. The filter represents the equalisation curve. The size of the filter passed to the DSP boards determines how accurately the equalisation curve can be modelled by the hardware. The larger the filter (ie. the more samples there are), the more accurate the resolution of the filtering that the system performs, or the finer that EQ adjustments can be made. By selecting the largest filter size, Lake EQ will always be as accurate as possible. Unfortunately there is a trade off: Time. The larger the filter, the longer it takes to construct and the longer it takes to download the filter to the DSP cards. HURON TECHNICAL MANUAL PAGE 260
↓ To select a filter length 1. Select Setup filters from the Filters menu. The following dialogue box will appear: Figure 87 — Lake EQ filter setup dialogue Low Latency Single DSP Filter Length Latency samples Latency msec. THE EQUALISATION TOOLS 2. Select either a Low Latency filter or a Minimum DSP filter. Once selected the filter properties will be displayed. 3. Select the filter length from the drop down Filter Length menu. 4. Click OK to accept the filter settings. The following filters are available for use in EQ: DSP used Filter Length Latency samples Latency msec. 2058 1 0.02 1 2058 1 0.02 1 4319 46 1.00 1 4319 46 1.00 1 8368 92 2.00 1 8638 92 2.00 1 34728 3 0.06 2 16384 968 20.00 1 69422 48 1.00 2 32768 1967 41.00 1 138924 94 2.00 2 65536 3937 82.00 1 139010 5 0.10 3 131072 7948 166.00 1 278244 5 0.10 3 262144 16110 336.00 1 Note: EQ will automatically convert the filters to the correct sample rate. The system clock can be derived internally, or from an external Digital Input Source. EQ will detect the system frequency and display it in the Sample Rate Parameter of the Setup - Limits menu item. Locking Sliders DSP used It is possible to prevent sliders from being adjusted in a particular way. An example of this is where a traditional graphic equaliser is constructed using Lake EQ. In this case the centre frequency or bandwidth is unable to be moved. HURON TECHNICAL MANUAL PAGE 261
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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
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Summary THE SIMULATION TOOLS • Th
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Starting ↓ To access MultiScape F
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Editing a Sound Object ↓ To edit
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B-format Decode Mode B-format Mode
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Editing Headphone Objects ↓ To ed
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Adding Rooms, Deleting Rooms Adding
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Summary THE SIMULATION TOOLS • Mu
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Starting ↓ To access HeadScape Se
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Configuring HeadScape ↓ To config
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Summary THE SIMULATION TOOLS • He
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Scene (List of Tracks) Track (List
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Figure 45 - Scene Properties dialog
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Manipulating Tracks ↓ To add a tr
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↓ Exporting a trajectory to a Loc
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Other Simulation Tools This sub-sec
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Locator Commands Loading and Playin
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Features Requirements The WavePlaye
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Figure 49 — The WavePlayer-2 inte
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↓ Setting the RME Hammerfall as t
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Note: The Waveplayer has now been s
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Summary OTHER SIMULATION TOOLS •
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↓ To select a microphone setting
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↓ To specify the Echo settings
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Integration under 32 bit Windows In
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Positional Commands Note: The numbe
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OTHER SIMULATION TOOLS SNAPGetRooms
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MultiScape Commands Parameter Descr
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Space Array Commands Parameter Desc
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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
Page 211 and 212: ; comments ( (dtype [bit16 | bit20
Page 213 and 214: Introduction Operation Starting ↓
Page 215 and 216: Dfilter Windows Interface ↓ To st
Page 217 and 218: Lvec Windows Interface ↓ To start
Page 219: Padvec Windows Interface ↓ To sta
Page 223 and 224: Permute Windows Interface ↓ To st
Page 225 and 226: Wingen Windows Interface ↓ To sta
Page 227 and 228: SigGen Windows Interface ↓ To sta
Page 229 and 230: ↓ To generate a piecewise linear
Page 231 and 232: Vector Arithmetic Windows Interface
Page 233 and 234: Introduction Features Operation ↓
Page 235 and 236: Printing ↓ To print the SIM file
Page 237 and 238: Altering the Axes ↓ To display sa
Page 239: Summary THE ENGINEERING TOOLS • P
Page 242 and 243: Note: In this version of SimScale i
Page 245: Usage Simtowav Simtowav is a comman
Page 248 and 249: Hamming Window Blackman Window Harr
Page 251: Introduction to the Programming Too
Page 254 and 255: Operation Starting Lake EQ ↓ To a
Page 256 and 257: Slider Widget Toolbar Creating an E
Page 258 and 259: High Shelf Tip: All the sliders can
Page 262 and 263: ↓ To lock a Slider ↓ To unlock
Page 264 and 265: Limits ↓ To alter the graph limit
Page 267 and 268: Introduction 96kHz EQ Hardware Requ
Page 269: Loading EQ 96kHz THE EQUALISATION T
Page 273 and 274: Features Operation The VMixer The V
Page 275 and 276: Note: When increasing the size of V
Page 277 and 278: Muting ↓ To mute all output chann
Page 279 and 280: Operation Starting ↓ To access th
Page 281 and 282: Operation Starting ↓ To access th
Page 283: Summary OTHER TOOLS • The BFormat
Page 286 and 287: I/O Test Patching Selecting the For
Page 288 and 289: Summary • To utilise I/O Test an
Page 291 and 292: Fixed Point Digital Audio Data Repr
Page 293: ↓ SimScale Avoiding Large Frequen
Page 296 and 297: Figure 99 — SNR of the 16 bit A/D
Page 298 and 299: Mechanical Specifications 1 3 Figur
Page 301 and 302: Audio Input Levels Managing Audio S
Page 303 and 304: HURON TECHNICAL REFERENCE • In ge
Page 305 and 306: Angle Channels Glossary Angle chann
Page 307 and 308: Order of Reflections HURON TECHNICA
Page 309: SNR (Signal to Noise Ratio) HURON T
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↓ To specify an auto-logon domain
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