Wohler at GV Expo 2008 Booth 763 Company Background:
Since its inception in 1987, Wohler Technologies' video products division, PANORAMAdtv, continues to be a world leader in providing in-rack audio and video monitoring solutions for the broadcast, motion picture, and professional audio/visual markets. The San Francisco Bay Area-based company offers a comprehensive range of products that simplify analog and digital source monitoring in facilities of all sizes and complexity. More information is available at
Wohler at GV Expo 2008:
Wohler will be showcasing a range of products that represent state-of-the-art processing and monitoring in convenient and compact designs, all integrated into the new Wohlermobile. Proudly adorned in Wohler blue, the new trailer demonstrates how easily Wohler products provide key functionality even in the most space-constrained production applications. The Wohlermobile's array of products includes intuitive touch-screen systems that simplify video monitoring and routing while providing key functional enhancements, versatile HD monitors for all variety of signal types, and analog and digital audio monitoring systems and level meters that together accommodate virtually every audio input type.
Wohler Products at GV Expo 2008:
Video Products and Solutions
RM LCD Video Monitoring Series
Packed with functionality but priced affordably, Wohler's new RM series of high-definition (HD) monitor packs are ideal for video and audio confidence monitoring in mobile trucks, news and transmission control rooms, and duplication and post-production facilities. Each screen can display eight channels of VU over PPM audio level meters, UMD, safe areas, frame marks, cropping, switchable aspect ratios, as well as built-in color bars. The RM HD units also provide an active loop-through output for each SDI input. Additionally, all settings are accessible from front panel controls and the RM's intuitive on-screen menu. As a fully inclusive solution, each model is designed for high-resolution HD imaging and features NTSC and PAL autosensing built into the units, which accept two composite video inputs per screen on the same BNC used for HD/SD-SDI. Additional features include a versatile chassis in which the LCDs may be rotated Â±55 degrees in the vertical plane to provide optimum viewing angles. Red/green/yellow tally, as well as the in-screen UMD, can be interfaced to most tally systems.
HDMon Family of High-Definition Monitors
Wohler's HDMon high-definition (HD) color video monitor displays enable high-quality monitoring of digital HD-SDI, SD-SDI, or DVI signals; analog composite, component, and RGBHV video; and CGI images up to WUXGA resolution. Though the HDMon series is designed primarily for 1080-line HD applications, each monitor provides exceptional noise reduction, motion interpolation, and motion-adaptive processing to ensure crisp, clear display of images, regardless of their native resolution. Current HDMon models include the HDMon-90, HDMon-90WS, HDMon-170, HDMon-92WS, HDMon-190, and HDMon-260. Operating either as a desktop monitor or installed in a 19-inch-wide rack, these LCD displays offer HD resolution, a choice of 4:3 or 16:9 aspect ratios, user-adjustable scaling, and up to 170 degrees of perfect off-axis viewing without the image and color distortions normally associated with LCD displays. A sleek, lightweight design allows HDMon displays to convert from portable to tabletop solutions without the need for additional hardware. Built-in 100Base-T Ethernet and RS232 connections allow the monitors to be configured and controlled remotely via a WindowsÂ®-based GUI or by third-party control systems.
Audio Products and Solutions AMP2-16MSDI 16-Channel Audio Monitor
The new AMP2-16MSDI provides instantaneous display for up to 16-channels of embedded audio within a single multirate HD/SD-SDI signal. Built on a fully digital system architecture featuring multiple high-fidelity class-D amplifiers, the AMP2-16MSDI provides unsurpassed near-field monitoring for any mix of stereo and mono sources in a compact 2RU design. The monitor includes demuxed outputs of eight AES pairs on unbalanced 75 ohm BNC connectors and also provides a reclocked loop output of the SDI signal. The monitor's high-resolution LCD display boasts colorful 210-segment high-resolution bar graph level meters. Colors and settings for scale and range are user-selectable along with several predefined scales and ballistics including AES, BBC, and Nordic. Each displayed meter set clearly indicates the phase for stereo sources prior to output on the speakers. The AMP2-16MSDI audio monitor also addresses key issues in DTV audio delivery, providing measurement of program loudness in adherence with ITU-1770/1771, which is displayed prominently on the unit's LCD status screen.
AMP2-E8MDA Multiformat Audio Monitor
The AMP2-E8MDA multiformat audio monitor processes and monitors up to eight channels from a DolbyÂ® E or AC-3 (Dolby Digital) bit stream, an HD-SDI or SD-SDI bit stream, two sets of four AES/EBU signal pairs (balanced and unbalanced), or eight balanced analog channels. Eight high-resolution 53-segment tricolor LED bar graph audio-level meters provide instant and accurate level monitoring at a glance. A convenient high-contrast LCD display on the front panel shows the user settings and status, type of signal, channel selection, mute status, and phase/correlation. The unique acoustic design of the AMP2-E8MDA provides optimally focused sound in an ultra-near-field (1 to 3 feet) environment, which allows higher SPL for the operator while reducing overall ambient sound and adjacent bay crosstalk. The audio amplifier section features five high-performance transducers driven by three power amplifiers. Output limiter circuits protect the speakers, and extensive magnetic shielding allows placement of the monitor immediately adjacent to magnetically sensitive equipment. The 2RU system installs into an industry-standard 19-inch-wide rack.
AMP1-S8MDA Multiformat Audio Monitor
The AMP1-S8MDA is a complete audio monitoring solution capable of monitoring audio from HD-SDI, SD-SDI, AES/EBU, and analog signal sources. The 1RU system processes and monitors up to eight channels from an HD-SDI or SD-SDI bit stream, two sets of four AES/EBU signal pairs (balanced and unbalanced), or eight balanced analog channels. Eight high-resolution 26-segment tricolor LED bar-graph audio-level meters provide accurate and instantaneous visual level monitoring at a glance. A convenient high-contrast LCD display on the front panel shows the user settings and status, type of signal, channel selection, mute status, and phase/correlation. The unique acoustic design of the AMP1-S8MDA provides optimally focused sound in an ultra-near-field (one to three feet) environment, which allows higher SPL for the operator while reducing overall ambient sound and adjacent bay crosstalk. The audio amplifier section features five high-performance transducers driven by three power amplifiers; two amplifier/driver combinations handle midrange and high frequency information in stereo (left and right speakers), while the third and center channel reproduces information below the 500-Hz crossover point (woofer speaker).
VMMDA-1 "Confidence Plus" Audio Monitor
The 1RU VMMDA-1 from Wohler provides stereo monitoring with fidelity exceeding that of ordinary monitors in a similar rack size. Intended for confidence monitoring for HD-SDI, SD-SDI, digital, and analog stereo audio, the unit offers selectable monitoring of either two HD-SDI or SD-SDI channels and either one stereo analog or one AES/EBU digital audio source with outstanding full-range fidelity. Two front-firing midrange/tweeter speakers and a compact high-performance woofer are arranged in Wohler Technologies' popular bi-amp design. Electronic rather than acoustic cancellation of bass frequencies provides positive audible detection of out-of-phase (reversed polarity) audio feeds, and fast and averaging "phase" LEDs give a visual alert of out-of-phase conditions. The VMMDA-1 features two 10-segment VU LED bar graph level meters. An analog output of the selected SDI, analog, or digital stereo source is provided on the rear panel. A three-way toggle switch selects among analog or digital inputs. An auxiliary analog output of the selected analog or digital source is provided on the rear panel.
VMDA-SUM8 Continuity Monitor
Wohler's VMDA-SUM8 eight-channel analog/digital continuity monitor features a reduced depth dimension of just 4.75 inches, thus providing self-powered audio confidence monitoring in the smallest rack space possible. The VMDA-SUM8 offers selection among eight separate digital channel inputs (four AES streams) and eight separate analog inputs on a channel-by-channel basis. The selected channels are then summed together: four to the left and four to the right, providing eight separate volume controls. An analog/digital input select switch gives the operator complete control of the output.
E MON-1/M Audio Monitor
The E MON-1/M unit is a powered eight-channel audio monitor designed specifically for decoding, processing, and monitoring DolbyÂ® E, Dolby Digital, HD-SDI, SD-SDI, and AES/EBU audio signals with excellent fidelity in just 2RU. The monitor's eight high-resolution LED bar graphs offer superior visibility and accuracy of audio levels, and its front-panel LCD display provides mode and audio-select information at a glance. Fifty-three bicolor segments simultaneously display signal levels according to PPM and VU standards. E MON-1/M speakers and amplifiers are arranged in the popular Wohler bi-amp summed bass stereo configuration. Bass frequencies from all selected channels are summed into a 20W amplifier, which drives the woofer. The two side channel amplifiers and speakers reproduce, in stereo, only the mid- and high-frequencies. The monitor's headphone output mutes the speakers while in use.
VMQ-4 Four-Channel Audio Monitor
Wohler's 1RU VMQ-4 audio monitor permits simultaneous monitoring of up to four audio sources on four analog inputs with voice-quality fidelity. Because each channel has its own dedicated power amplifier and speaker, the audio sources remain completely separate from analog input to output. A separate volume control is provided for each of the four monitored channels, and each channel has an LED that illuminates when a signal is "active" in that channel.
ATSC/DVB-3 Six-Channel Audio Monitor
The ATSC/DVB-3 is a powered stereo monitor designed specifically for flexible, comprehensive monitoring of the six audio channels associated with ATSC/DVB programming. The 2RU system provides excellent fidelity without using excessive rack space in the critical "operating zone" of rack bays and consoles. The ATSC/DVB-3 accepts AES/EBU and/or DolbyÂ® Digital (AC-3) input signals and offers capabilities key for monitoring throughout the facility. The speakers and amplifiers are arranged in the popular Wohler bi-amp summed bass stereo configuration. Bass frequencies from all selected channels are summed into a 20W amplifier that drives the woofer. The two side-channel amplifiers and speakers reproduce, in stereo, only the mid- and high-frequencies.
Other Products and Solutions:
LM Series Audio-Level Metering Units
At GV Expo 2008, Wohler will feature two of its LM Series audio-level metering units, the LM26HR-8 eight-channel, 26-segment level meter and the ultra-high-resolution LM106-6/AC-3 six-channel, 106-segment level meter, the latter providing an industry-leading dynamic range up to 70dB in increments as small as 1/2dB across mid-scale. Each LM Series analog metering unit features input connector impedances of 27 K ohm, balanced, which may be adjusted for reference-level gain via a rear-panel DIP switch. Input impedances for digital metering units are 110 ohm, balanced, for XLR and Phoenix connectors and 75 ohm, unbalanced, for BNC connectors. The LM Series' standard display mode is set as a single-segment PPM dot above a VU bar; each segment's color is fixed according to its position on the scale. Wohler's unique tricolor LED design enables a virtually unlimited variety of metering options including phase correlation, peak hold, loudness, sum and difference, and alternate scales and color mappings.
ALM Series Level Meters
Wohler's ALM series monitors 24 audio channels, providing audible and visual alarms for loss of audio, over-range (clipping), and phase/polarity reversal. When an ALM unit detects a fault condition, it activates individual channel LEDs and sets off an acoustic alarm. One or more rear-panel relay contact closures also are energized for external alarm indication. Clip and loss alarms are independently indicated on each channel, and each channel may be set individually or grouped in a stereo pair. ALM units are available in 1RU and 2RU designs respectively featuring 26-segment and 53-segment high-resolution tricolor LED bargraph displays of VU or PPM, depending on operator preference. Configuration of each unit is simplified by an easy-to-use WindowsÂ® application.
Touch-itâ„¢ Digital Multichannel Video Monitor
Wohler's new Touch-itâ„¢ Digital offers unique multichannel video monitoring functionality in a smart, affordable design. The 3RU system features dual 7-inch high-resolution color LCD displays. The left monitor is a touch screen that displays from four to 16 thumbnail images. When one of these images is touched, that video source appears on the right monitor at full size and its HD/SD-SDI source signal is sent to an unbalanced output and to a VGA output for monitoring on an external display. The Touch-it Digital accepts and switches eight standard SD-SDI video inputs, passing along any embedded audio. When combined with a Wohler E-Frame, closed captioning, and logo keyer E-Cards, the Touch-it Digital serves as an elegant and cost-effective master control system. Product Photo:
# # # All trademarks mentioned herein are the property of their respective owners.