The M4IP-USB is a four-channel DSP-based BLADE-3 voice processor with four completely independent channels of high-quality, low-noise, high-dynamic range and accurate transient response voice processing in an IP networked rack unit.
The M4IP-USB combines four high-quality microphone preamps, four channels of Vorsis embedded microphone processing, and a WheatNet-IP BLADE interface, allowing you to place four microphone inputs anywhere in your WheatNet-IP Intelligent Network (although it also works just fine as a standalone processor). The preamps and processors are accessed and controlled from any point on the network via its Windows-based GUI.
Four independent USB ports are built in to facilitate the individual use of each processor output by separate computers.
The M4IP-USB is a great way to maximize your investment in on-air talent by combining four mic processors into a single rack space, accessible from anywhere.
The M4IP-USB microphone processor is equipped with four matched Super-Quiet (SQ) microphone preamplifiers featuring extremely low noise floor, very wide dynamic range, faithfully accurate transient response, and ruler flat frequency response. Operating in harmony with high quality 24-bit A/D converters and a 96kHz base sample rate, the M4IP-USB adds absolutely no undesired coloration to the signal and faithfully preserves the sound of any microphone and talent combination. It also features a four-section equalizer with high and low shelving EQ and two bands of fully parametric EQ, high and low pass filters, and de-esser and expander functions.
The M4IP-USB also features four analog stereo line-level outputs, ideal for feeding headphone amplifiers associated with talent or studio monitoring systems, and four stereo AES digital outputs.
The signal path of the M4IP-USB includes four completely independent channels of Wheatstone’s smooth-sounding Vorsis dynamics processing. Adjustable from anywhere on your network the M4-IP offers the security of password protected TCP/IP-based remote control and no front panel controls.
Like all WheatNet-IP BLADE-3s, the M4IP-USB is AES67 compatible.
Based on great-sounding designs built for Wheatstone’s high performance professional audio applications, the M4IP-USB’s equalization section operates predictably and adds no noise, ringing, phasiness or other undesirable coloration to the sound.
WHEATSTONE-DESIGNED DYNAMICS PROCESSING TOOLS
A high performance and fully adjustable downward expander, de-esser, and smooth sounding broadband compressor and selectable low distortion final Lookahead limiter round out the M4IP-USB to create powerful and authoritative presence to production or on-air microphones.
A variety of ready-to-use factory processing presets are provided, carefully tailored for different processing goals and formats. You can select a factory preset, confident that it will sound great just as it is. Or use a factory preset as a starting point and create a custom sound for each announcer, then save the new settings as a personalized user preset. In a facility with multiple microphone processors, presets saved in one unit can be easily copied to the others.
WHEATSTONE TALENT CONTROL INTERFACE
The Wheatstone Talent Control Interface software can reside on an air studio/control room PC and gives talent the ability to recall presets from any Vorsis microphone processor without allowing processing adjustments.
All parameters of the M4IP-USB are controlled using the included Windows-based GUI. Voice talent can activate his or her own personal sound at the press of a button using the Talent Control Interface, a special GUI designed for preset recall only.
Extremely high performance microphone preamplifiers with 48V phantom power
Four completely independent processing channels
Four stereo analog line level outputs
Four independent USB ports
Four stereo AES outputs.
All digital, field proven Wheatstone-designed advanced processing algorithm
Phase Scrambler to correct asymmetrical voice waveforms
High- and low-pass filters
Fully adjustable downward expander
Precision de-esser sibilance controller
Four-bands of EQ: low-frequency shelving, two-band parametric, high-frequency shelving
Final precision peak limiter – can be defeated if desired for lower latency
TCP/IP-based remote control from anywhere via M4-IP Remote Control Software
Talent Control Interface software for preset recall without processor control
Password controlled access and control-less front panel for keeping settings secure
Front panel metering of input and output levels
Colorful OLED display
Requires only one rack space
Mastering & Production
Specifications for all voice processors (for easy comparison):
Factory presets are pre-installed and write protected. New factory presets can be downloaded from the Wheatstone-Processing.com web site and installed via the Windows-based GUI software.
M-1: unlimited preset storage on the host PC
M-2: storage for 80 presets in on-board non-volatile memory, unlimited storage on host PC.
M-4: storage for 80 presets in on-board non-volatile memory, unlimited storage on host PC.
Microphone XLR-F connector (one on M-1, two on M-2, four on M-4)
Electronic differential: >2KΩ (bridging)
Optimum source impedance: 200Ω
Phantom Power: 48VDC, switchable on/off
Gain: -10dB to +70dB in 1dB steps
Frequency response: ±0.2dB 20Hz-20KHz
Equivalent input noise (EIN): -128dBu
THD+N: <0.03%, 20Hz-20kHz, -50dBu input
SMPTE DIM: 0.00007%
Mic or line level output selectable (M-1 only)
Line-level output (M-2 and M-4 only)
Digital XLR-M connector (one on M-1, two on M-2)
Two RJ45 to StudioHub standard (M-2 and M-4 only)
Reference Level:: 0VU=-20dBFS
Output Sample Rates:
M-1: 44.1 kHz, 48 kHz and 96 kHz
M-2: 48 kHz fixed
M-4: 44.1kHz or 48kHz
Balanced: 110Ω AES-3 0VU=-20dBfs
Analog XLR-M connector: (one on M-1, two on M-2)
Electronically balanced: <10Ω source impedance
Optimum load impedance: >600Ω
Maximum output level: +24dBu
Asymmetry filter Phase rotator, 4th order allpass, switchable in/out
High-pass: 24dB/octave Butterworth
Low-pass: 24dB/octave Butterworth
Notch (M-2 only): Fixed bandwidth
Threshold Adjustable: -60dBFS to 0dBFS
Depth Adjustable: 0-40dB
Close Adjustable: 50ms-3s
Threshold Adjustable: -10dBFS to -60dBFS
Attack time (M-2 only): Adjustable 0.1ms-100ms
Release time Adjustable: 50ms-500ms
De-ess frequency Adjustable: 20Hz-20kHz
Bandwidth (M-2 only): Adjustable 0.15-4 octave
Routable: Pre or post compressor
Band 1: Shelving
Bands 2 and 3: Parametric
Bandwidth: 0.2-3.0 octave
Band 4: Shelving
COMPRESSOR – M-1 and M-4
Threshold: -10dBFS to -50dBFS
Attack time: 0.2ms-1s
Release time: 33ms-1s
COMPRESSORS – M-2
One, two, or three processing bands
Band 1-2 adjustable 20Hz-1kHz
Band 2-3 adjustable 1kHz-20kHz
Threshold: 10 to -50dBFS
Attack time: 0.2ms-1s
Release time: 33ms-1s
FINAL LIMITER (M-2 and M-4 only)
Control: Zero-overshoot look-ahead limiter
Threshold: -50 to -10dBFS (fixed at -6dBFS in M-4)
Attack: 0-100ms (automatic in M-4)
Release: 10ms-330ms (automatic in M-4)
LOGIC I/O, M-1 and M-2
Remote control: RJ45 connector (two on M-2)
For M-1 and M-2: Optional Wheatstone Announcer Panel or custom interface
Connections: ON, OFF, Cough, ON tally, OFF tally, power and ground
GPI input (M-2 only): DB9 connector
Eight opto-isolated ports for external switching of presets (M-2 only)
LOGIC I/O, M-4
12 opto-isolated and fully configurable GPIO logic ports
M-1 and M-2: Ethernet 10-100BASE-T, RJ45 connector