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Summary of Contents for Wheatstone M-2
- Page 1 M-2 diGital ultiband oice rocessor TECHNICAL MANUAL 600 Industrial Drive, New Bern, North Carolina, USA 28562...
- Page 2 U lt r a - H i g H r e s o l U t i o n P r o c e s s i n g M-2 Digital Multiband Dual Voice Processor Technical Manual - 1st Edition ©2009 Wheatstone Corporation...
- Page 3 This equipment must be installed and wired properly in order to assure compliance with FCC regulations. Caution! Any modifications not expressly approved in writing by Wheatstone could void the user's authority to operate this equipment. M-2 / Oct 2009...
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Page 4: Quick Start Guide
- Qty 1 Install and Connect the M-2 1. Install the M-2 in the equipment rack using at least two rack screws. If only two screws are used they must be installed in the bottom holes of the rack ears to pre- vent undue stress on the front panel and possible bending. - Page 5 - Follow the on screen instructions to complete the GUI installation. Configuring the M-2 IP Address Once the GUI has been installed on the host PC it’s time to configure it and the M-2 so that they can communicate with each other. This requires configuration for both the M-2 and the remote GUI so that they agree on the networking parameters.
- Page 6 M-2 will never “hear” it. Next, enter a pet name for your M-2, like AirStudio1, etc. Then, enter the IP address that you wish the M-2 to have, noting that this address must be unique if the M-2 will be communicating over your network.
- Page 7 Now that the M-2 has its own TCP/IP identity, we must configure the GUI so that it can talk to the M-2. This is done by adding “devices” to the list of M-2’s that the GUI knows about. To do this, locate and click on the “Devices” button located along the right side of the GUI.
- Page 8 Under these circumstances the configuration of the GUI and M-2 should be carefully examined to ensure that the destination TCP/IP address is consistent between the two. Once these steps are complete you are now ready to use the M-2 from anywhere in the world through its advanced Graphical User Interface.
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Page 9: Table Of Contents
XLR/RJ-45 Outputs Pinout Drawing .................1-10 RJ-45 Control/Ethernet & DB-9 GPI Pinout Drawing ..........1-11 Chapter 2 - M-2 Operating Guide Remote Interfacing with The Vorsis M-2 GUI ......2-3 Architecture of the GUI ..............2-4 Connecting the M-2 and the GUI ..........2-4 With LAN (Local Area Network) ..................2-4... - Page 10 Passwords ......................2-28 Sample Rate .....................2-29 GUI Mode ......................2-29 Side Bar Region ......................2-30 Managing Presets ....................2-30 Preset Button .......................2-30 Library Button .......................2-31 File Menu ......................2-31 Edit Menu ......................2-32 View Menu ......................2-33 Devices Button .....................2-35 page Contents – 2 M-2 / Oct 2009...
- Page 11 Title Bar Region ......................2-37 Status ........................2-37 Devices .........................2-37 Network Notes ......................2-37 Accessing Menu Options ..................2-38 File Menu Items ....................2-38 Hardware Menu Items ..................2-38 Software Updates ................. 2-39 Appendix Parameters, Units and Ranges .............A-2 page Contents – 3 M-2 / Oct 2009...
- Page 12 Remote ON, OFF, Cough ..................1-6 On and Off Tallies ....................1-6 General Purpose Interface..................1-7 Ethernet Interface .......................1-8 XLR Inputs Pinout Drawing ..................1-9 XLR/RJ-45 Outputs Pinout Drawing .................1-10 RJ-45 Control/Ethernet & DB-9 GPI Pinout Drawing ..........1-11 page 1 – 1 M-2 / Oct 2009...
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Page 13: Introduction
G E N E R A L I N F O R M A T I O N General Information Introduction The Wheatstone M-2 Digital Dual Voice Processor is a uniquely flexible and easy- to-use multiband voice processor designed for professional audio applications. It offers user presets, security, networkability, an all digital and fanless DSP-based framework, and easy to set up parameters. -
Page 14: Pre-Installation Notes
M-2 in order to aid natural convection cooling. • The M-2 should be connected to a source of clean AC power. If local power has a history of being unstable, it is wise to incorporate an Uninterruptible Power Source (UPS) in the AC power feed to the M-2 •... -
Page 15: Rear Panel Connections
Rear Panel Connections All audio input and output, control, Ethernet, and power supply connections are made via various connectors conveniently mounted on the M-2’s rear panel. Six XLR con- nectors are provided: two microphone inputs, two analog and two digital outputs. Five RJ-45 connectors are also provided;... -
Page 16: Outputs
The M-2’s “CONTROL” RJ-45 connectors may be used with the (optional) Wheat- stone GP-4S Mic Control Panel, or may be wired to a custom interface if desired. Functions available to each signal processing channel of the M-2 include remote on and off, cough, and tally. -
Page 17: Optional Gp-4S Mic Control Panel
To Turn Microphones ON & OFF from a Remote Location REMOTE ON — When taken low (connected to Digital Ground) activates the ON TALLY and simultaneously unmutes the M-2 audio output for that channel. You must provide a momentary closure between Remote On (Pin 7) and Digital Ground (Pin 1) to latch the microphone audio ON. -
Page 18: General Purpose Interface
Wheatstone processors. In the M-2 the eight GPI inputs operate as follows: - GPI ports 1 through 4 are hard coded to select presets for M-2 Channel One. - GPI ports 5 through 8 are hard coded to select presets for Channel Two. -
Page 19: Ethernet Interface
Pin 6 – RXD - Pin 7 – N/C Pin 8 – N/C When using the M-2 with a nearby computer and when no local area network is available, you must use a standard Ethernet crossover cable to interconnect the computer and the M-2. - Page 20 PIN 1 XLR 2 SH - MIC 2 IN SH PIN 2 XLR 2 HI - MIC 2 IN HI XLR 2-F PIN 3 XLR 2 LO - MIC 2 IN LO page 1 – 9 M-2 / Oct 2009...
- Page 21 AES 2 OUT LO PIN 1 XLR2 SH - AES 2 OUT SH XLR2-M PIN 2 XLR2 HI - AES 2 OUT HI RJ-45 #2 PIN 3 XLR2 LO - AES 2 OUT LO page 1 – 10 M-2 / Oct 2009...
- Page 22 GPI 7 IN (+) GPI 6 IN (+) GPI 5 IN (+) RJ-45 GPI 4 IN (+) GPI 3 IN (+) RXD - GPI 2 IN (+) GPI 1 IN (+) GPI COM (-) page 1 – 11 M-2 / Oct 2009...
- Page 23 M - 2 O P E R A T I N G G U I D E M-2 Operating Guide Chapter Contents Remote Interfacing with The M-2 GUI .......... 2-3 Architecture of the GUI ..............2-4 Connecting the M-2 and the GUI ..........2-4 With LAN (Local Area Network) ..................2-4...
- Page 24 View Menu ......................2-33 Devices Button .....................2-35 Title Bar Region ......................2-37 Status ........................2-37 Devices .........................2-37 Network Notes ......................2-37 Accessing Menu Options ..................2-38 File Menu Items ....................2-38 Hardware Menu Items ..................2-38 Software Updates ................. 2-39 page 2 – 2 M-2 / Oct 2009...
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Page 25: Remote Interfacing With The Vorsis M-2 Gui
• The ECI or “Expert Control Interface” makes every M-2 control available. It is intended as a wide open window to the M‑2’s many features and settings ‑ no controls are hidden from the user. -
Page 26: Architecture Of The Gui
The GUI is designed to operate a virtually unlimited number of M‑2 microphone processors. Each M-2 unit is associated with its own static TCP/IP address as is the controlling PC. Remember that in most networks the address xxx.xxx.xxx.255 is a reserved broadcast address and should never be used for configuring network devices. -
Page 27: Without Lan (Local Area Network)
M - 2 O P E R A T I N G G U I D E Without LAN (Local Area Network) It is also possible to work without a LAN by connecting the M-2 and the PC Ethernet ports together using a standard Ethernet crossover cable. -
Page 28: Dynamic Display Region
M‑2. When OUTPUT is selected the graphical display shows the audio after the M‑2 has processed it. The mode that has been selected is indicated by a small green “on” light in the selected button. page 2 – 6 M-2 / Oct 2009... -
Page 29: Bargraph Metering
Signal Path Selection Above the bargraph meters are tabs labeled Channel 1 and Channel 2, that select which of the two signal channels within the M-2 is being operated upon / displayed. page 2 – 7 M-2 / Oct 2009... -
Page 30: Control Area Region
Output — This screen hosts the controls for engaging and using the final Peak Limiter as well as the Output level controls. System — Gains access to settings for security, user level selection, I/O-Settings- follow‑Presets mode, and output sample rate. page 2 – 8 M-2 / Oct 2009... -
Page 31: Input Calibration & Sweepable Filter Set
(“-“). Phase Scrambler Each channel of the M-2 is equipped with a fourth order all-pass network which is designed to rearrange the microphone signal’s phase‑verses‑time alignment of its harmonics relative to its fundamentals. -
Page 32: Phantom Power
When selected (and when the above mentioned jumper is also in place inside the M‑2) phantom power will be provided to the microphone connected to the selected channel. page 2 – 10 M-2 / Oct 2009... -
Page 33: Filters
Note that Show Filters must be checked to see the filter response. Filter Set - Display of Overall Combined Response The M-2’s filter set is useful for removing low level hums, hiss, and other ob‑ jectionable noises as well as for creating certain special effects. High Pass Filter... -
Page 34: Notch Filter
M - 2 O P E R A T I N G G U I D E Notch Filter The Notch Filter in the M-2 is used to remove a “nar‑ row” band of frequencies without affecting audio above and below that frequency. -
Page 35: Downward Expander
Expander threshold. The Expander controls available to the user depend on the GUI mode. The two screens below demonstrate this difference. ECI Mode Expander Screen SSI Mode Expander Screen page 2 – 13 M-2 / Oct 2009... -
Page 36: Threshold
Note: The Wait control is absent from the GUI when it is in its SSI mode! page 2 – 14 M-2 / Oct 2009... -
Page 37: Depth
All of the controls in the expander section are highly subjective as to personal taste, microphone type, the characteristics of the human speaker, and of course the acoustical environment. page 2 – 15 M-2 / Oct 2009... -
Page 38: De-Esser
The SSI mode’s Frequency and Bandwidth values rely on settings recalled from our Factory presets - settings that were empirically determined through thousands of hours of collective tuning listening by audio experts. page 2 – 16 M-2 / Oct 2009... -
Page 39: Threshold
The final bandwidth setting is subjective - smaller octave settings are less audible than larger ones. The final setting must be arrived at through a short period of experimentation. page 2 – 17 M-2 / Oct 2009... -
Page 40: Release
When the Enable checkbox in the upper right corner of the De-Esser screen has a yellow checkmark, the de-esser is in the signal path. Use this checkbox to toggle the de‑esser in and out of the signal flow. page 2 – 18 M-2 / Oct 2009... -
Page 41: Compressor
The compressor section in the M‑2 is a descendant of the multiband compressors de‑ signed for the high‑end Wheatstone processors, and is able to operate in a wideband, two, or three band architecture. The graphics below show the compressor screens available when the M-2 is in either its ECI or SSI modes. -
Page 42: Drive
Suppose the Low Crossover and the High Crossover has been set to 20Hz and 20kHz respectively. Adjusted this way the M‑2’s compressor becomes a wideband compressor because all of the audio energy higher than 20Hz and lower than 20kHz page 2 – 20 M-2 / Oct 2009... -
Page 43: Two-Band
Suppose now the Low Crossover is set to 200Hz and the High crossover remains set at 20kHz. Now the M-2’s compressor is a two band compressor with a crossover at 200Hz! The Low band now handles audio energy up to 200Hz and the Mid band is handling the remainder of the energy between 200Hz to 20kHz. -
Page 44: Release
(should!) otherwise be inaudible. * The sound of intermodulation distortion ranges from a subtle “thickening” of the sound, to downright muddy or even “gurgling” at the extreme. page 2 – 22 M-2 / Oct 2009... -
Page 45: Ratio
MULTIBAND COMPRESSOR section has a yellow checkmark, the compressor is in the audio path. When this checkbox is not checked, the compressor is not in the signal path. The Enable checkbox toggles this function. page 2 – 23 M-2 / Oct 2009... -
Page 46: Parametric Equalizer
Dynamic Display region of the GUI. The shaded areas show the response of each equal‑ izer section as well as the overall combined response when more than one equalizer sec‑ tion overlaps. page 2 – 24 M-2 / Oct 2009... -
Page 47: Swap
When it is not checked the equalizer section is not in the signal path. The checkbox has a toggle action behavior ‑ checking it changes the state of the EQ IN function. page 2 – 25 M-2 / Oct 2009... -
Page 48: Final Limiter / Output Levels
Final Limiter/Output Levels Screen The descriptions for the final limiter’s controls are as follows, remembering that each channel of the M-2 has its own final limiter settings! Access to each signal chain is by using the Channel 1 and Channel 2 tabs. -
Page 49: Release
This control adjusts the maximum output level of the selected M‑2 processing channel. A separate level control is available for each processing channel by using the Channel 1 and Channel 2 tabs. page 2 – 27 M-2 / Oct 2009... -
Page 50: System
Are Recalled with Preset Takes” - this is an important concept to understand! System Screen M-2 presets ALWAYS store ALL of the settings being used, even the input and out‑ put level calibrations present at the time the preset was saved. By un-checking this box input and output settings stored within a preset will be ignored when presets are recalled. -
Page 51: Sample Rate
Please see Application Note AN2009-02 (on the Wheatstone Processing web site under “Resources” tab) for how the security properties of the M-1 and M-2 product’s TCI Interface can be tightly restricted in order to prevent certain kinds of changes by curious air talent. -
Page 52: Side Bar Region
A Note About Recalling Presets for Each M-2 Channel The M-2 can store up to 80 presets in its onboard flash memory. The storing of presets is not limited to doing so on a per‑channel basis. In other words, presets are “channel agnostic”... -
Page 53: Library Button
.pkg. This allows you to transfer a group of presets from one M-2 to another as a single file, rather than as a set of files. Library Button The brunt of the preset man‑... -
Page 54: Edit Menu
.pkg added to it, and the default location to save the file to, which you can also change, is the M-2’s install directory. The following choices are possible if a preset is highlighted: Save - Brings up the previously discussed “Save as Preset in Favorites”... -
Page 55: View Menu
“X” to close the form for one preset the form reappears for the next preset, and so on until all presets have been viewed. Diff... - This selection brings up the “Preset Difference” form (shown on the next page), which displays three re-sizable columns: page 2 – 33 M-2 / Oct 2009... - Page 56 M - 2 O P E R A T I N G G U I D E page 2 – 34 M-2 / Oct 2009...
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Page 57: Devices Button
Windows-defined printer. Devices Button The devices button allows access to the communica‑ tion configuration settings for the M-2. By clicking the “Add…” button, new M-2 devices can be configured for communication with the GUI. The following “Edit Device”... - Page 58 (single left click) the M‑2 device that you just added (shown highlighted in the image on the left) and click on “Select.” This step tells the GUI specifically which M‑2 you want to connect to. page 2 – 36 M-2 / Oct 2009...
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Page 59: Title Bar Region
M - 2 O P E R A T I N G G U I D E Title Bar Region Along the top edge of the M-2 GUI screen (in line with the “M2 Dual Voice Processor” product label to the left, and the Windows About, Minimize, and Exit icons to the right) are “Status”... -
Page 60: Accessing Menu Options
Assign IP Address... ‑ opens a dialog box that allows the user to change the IP address parameters of the M‑2. Please see the Read Me! at the beginning of this manual for com‑ plete details on changing the M-2’s network configuration settings to match those of your local area network. -
Page 61: Software Updates
The Software Update menu choice opens a dialog box and prompts the user to select a file to be uploaded to the M-2. Upon completion, you will be asked to restart the M-2 (cycle power). Note that due to the M-2 specific content of the update file and its heavy... -
Page 62: Appendix
A P P E N D I X Appendix Contents Parameters, Units and Ranges .............A-2 page A – 1 M-2 / Oct 2009... -
Page 63: Parameters, Units And Ranges
A P P E N D I X Parameters, Units and Ranges. Approximately following the M-2’s signal path, these are the values and ranges appropriate to each processing channel. System Level Headroom: 20dB Nominal Operating Level: -20dBFS LED Input/Output Level Meter... - Page 64 1:1 – 1:20 Control All parameters accessible via an intuitive MS Windows compatible graphical user ® interface via Ethernet interface. Three levels of user access are available: Expert, Simpli- fied, and Talent. page A – 3 M-2 / Oct 2009...
- Page 65 A P P E N D I X Please contact Wheatstone technical support for assistance or futher information regarding the M-2 product. Wheatstone Corporation 600 Industrial Drive New Bern, North Carolina, USA 28562 252-638-7000, fax 252-637-1285 “techsupport@wheatstone.com” page A – 4...
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