Broadcast / Live Signal Processing

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Broadcast / Live Signal Processing

TC Electronic D22
Stereo Digital Boradcast Delay, 5 seconds.

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Consistency in loudness is the single most important audio issue to get right in broadcast. That is the reason why DB-8, around the world, is the most widely used digital transmission processor today. It has set a new standard for real-time loudness control and format conversion, and pioneered support of both analog and digital feeds from one and the same machine.
 
Both the TC Electronic DB-4 and DB-8 employ cutting edge technology to enable stations get rid of listener complaints about jumping levels, and to transmit in analog and digital with optimum processing for both feeds. DB-4 includes the same processing and I/O capabilities as DB-8, except for holding two separate processors, instead of the four inside DB-8. For example, one DB-4 can apply different processing to four mono, two stereo or two 5.1signals, or to a combination such as one stereo and one 5.1 signal.
 
Compatibility between DB-4 and DB-8
 
DB-4 and DB-8 are preset compatible. If you know how to operate one of the them, you know how to operate both. DB-8 is primarily designed for large broadcast centers, while DB-4 may be a more appropriate match for OB linking or a regional station, but they share the same processing, the same presets and the same physical I/O structure - and even the same program to control them.
 
DB-4 and Your Broadcast Environment
 
On the audio side, DB-4 gets the most out of any data reduction system your station or country has chosen, be it MPEG4, Dolby AC3, MP3, AAC, DTS etc. At the station, it can route and delay Dolby E encoded signals, so the same signal-path can be used partly for linear stereo, partly for data-reduced audio.
 
On the control side, DB-4 interfaces directly with standard master control applications. Changes are applied using serial control, GPI or ethernet, and multiple units can be monitored via SNMP trapping. Local or remotely located DB-4 and DB-8 units can also be controlled from the Icon program included with the machine. (Icon runs under Windows 2k, XP and NT, Mac OS9 and OSX).
 
Identify Your Opportunities
 
If your station is an early mover in digital, and seeking to identify advantages, DB-8 and DB-4 will provide you with all the possibilities you need to transmit in 5.1 now, as well as to experiment and find the right competitive angle for the future. These processors can easily adapt to your audience's changing needs.
 
Technical Integrity
 
Synchronous 48kHz sampling and 48 bit processing throughout, in combination with massive jitter rejection, ensures high audio resolution and perfect timing, even when long, digital transmission lines are used to feed a processor. The DB-8/DB-4 platform is without compromises. In fact, hundreds of machines can be cascaded without degrading the transmitted sound. If optional analog interfacing cards are added, they too represent state of the art technology with 96kHz sampling and mastering quality dynamic range, far exceeding any US, Japanese or EU broadcast standard.
 
Foundation
 
TC's involvement with high quality digital audio dates back to the mid eighties with pre-DSD technology being employed in the still ubiquitous delay, 2290. TC's commitment to digital excellence continued over the years with equipment for the music, film and mastering industries. The multichannel processing in DB-8 and DB-4, for instance, was originally developed for film. Those tools have been adjusted for broadcast use and are now part of your arsenal. Or dynamics control, where some of the latest end-listener distortion canceling methods originally invented for mastering have been build in. Ten years experience with analog and digital broadcast combined with the know-how of skilled engineers is the strong base of the DB-8/DB-4 platform. From the purist and quality conscious hardware engineers to software writers of whom some were involved with designing the MPEG codecs, the team forms a competent, non-dogmatic design group ready to take broadcast audio to the next level.

TC Electronic DB-4 SDI
Stereo & 5.1 Broadcast Maximizer with 2 engines. Video SD 525 to HD 1080i (143 to 1485 MHz). 2 x 4 chan from 4 SDI groups. Linear audio + AAC, Dolby, E & Dolby AC3. 2 Separately buffered outputs.

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TC Electronic DB-4 SDI with digital bypass at Power Down
Stereo & 5.1 Broadcast Maximizer with 2 engines. Video SD 525 to HD 1080i (143 to 1485 MHz). 2 x 4 chan from 4 SDI groups. Linear audio + AAC, Dolby, E & Dolby AC3. 2 Separately buffered outputs.

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The TC Electronic DBMax is a Level Maximizer and Audio Enhancement processor for use in digital transmission, linking, webcast and radio STL applications.
 
High resolution and high sample rate processing prevents unwanted distortion and listening fatigue from being generated, artifacts often associated with comparable processors.
 
The 5-band section in DBMax can be combined with Automatic Gain Control, Dynamic and Static Stereo Enhancement, Dynamic and Static Eq and other tools for maximizing audio impact and creating a signature sound. Balanced and unbalanced AES/EBU I/O is standard, and outputs are always active. Sample rate conversion can be invoked when using digital inputs. Analog I/O is standard and outputs are always active.
 
The 24 bit converters are scaled in the analog domain, with scaling under preset control, to minimize noise and maximize headroom under all operating conditions. DBMax can be remotely controlled using GPI or RS485 serial inputs.

TC Electronic DBMax
Stereo Digital Broadcast Maximizer, 5 band compressor, AGC, Delay, EQ + Brickwall limiter.

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5-Band Loudness Controller and Limiter.
P2 is a Realtime Loudness Controller, Multiband Processor and Limiter designed for use in video and post production.
 
The unit features one-key set-and-forget operation, while keeping hundreds of presets and parameters available for a system installer or the station's audio engineer. Units are easily cloned, facilitating maintenance of a large studio complex.
 
Ease of use is combined with ultimate internal precision, so maximum audio quality is always obtained, even under non-ideal input conditions. Up to 8 presets can be recalled using GPI. For expert presetting and remote control, a PC can be used to adjust all parameters utilizing the Icon program included.
 
P2 comes pre-loaded with a wide variety of international standard presets to be used out of the box, or as starting points for further adjustments. Balanced and unbalanced AES/EBU I/O is standard, and outputs are always active. Sample rate conversion can be invoked when using digital inputs.
 
Analog I/O is standard and outputs are always active. The 24 bit converters are scaled in the analog domain, with scaling under preset control, to minimize noise and maximize headroom under all operating conditions.

TC Electronic P2 Level Pilot
Stereo & Dual Mono Dynamics Processor equivalent to a "single engine" DB-4. 5 band compressor, EQ, Auto loudness control, peak limiter, RS-232 control via PC Editor.

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The new ParaMedic 26 has no front panel controls for economy and security. All setup and operating functions are conducted from a PC running Windows 95/98/NT4 and White Windows 2 software. The computer/DSP link is generic RS-232 requiring only an industry standard cable. No outboard interface boxes are required. The RS-232 protocol and non-volatile EEPROM are new and more efficient. Transfers between the PC and ParaMedics as well as memory I/O are 50% faster. A convenient data connector is placed on the front panel and paralleled to the rear panel. Up to 250 PARAMEDICs can be daisy-chained (in any mix of models) and controlled from one PC.
Improved Input and Output Circuits and Control: The servo-balanced analog inputs and outputs are hand trimmed at the factory for matching levels. They can be operated unbalanced without a change in gain. All outputs are equipped with precision machine-wound inductors in an L-C circuit to absorb digital noise. Analog input and digital output levels can be individually adjusted in 0.5dB steps. The inputs can be linked together and selected outputs can be grouped. Linked or grouped levels are adjusted together and any offsets are maintained. The standard PARAMEDICs 22,24 and 26 are equipped with detachable Phoenix type audio connectors. XLR equipped models are available at no additional cost. Either model may be factory equipped with a set of fully balanced input transformers, output transformers, or both.
Output Levels: Individual outputs can be muted and have their polarity reversed. The 4 or 6 output levels can be assigned in up to three groups with a Master Level to control all. The Master level may also be muted.
Labeling: Name labels can be applied to all inputs, outputs, crossover sections and memories. These user assigned custom names will be displayed throughout the setup process.
Advanced Technology DSP Engine: A powerful Analog Devices' SHARC DSP with 32/40 bit floating point math delivers the raw computing power necessary to implement a complete multi-function audio processor. New discrete, 24 bit AD/DA converters sample the data at 48kHz assuring a wide dynamic range. The firmware can be updated in the field via the PC by re-flashing the unit with files downloaded from our web site.

White Instruments Paramedic 26 XLR
Same as Paramedic 26-P but with XLR input/output connectors. 4.5 Second Delay

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The New PARAMEDIC 26 has no front panel controls for economy and security. All setup and operating functions are conducted from a PC running Windows 95/98/NT4 and White Windows 2 software. The computer/DSP link is generic RS-232 requiring only an industry standard cable. No outboard interface boxes are required. The RS-232 protocol and non-volatile EEPROM are new and more efficient. Transfers between the PC and ParaMedics as well as memory I/O are 50% faster. A convenient data connector is placed on the front panel and paralleled to the rear panel. Up to 250 PARAMEDICs can be daisy-chained (in any mix of models) and controlled from one PC.
Improved Input and Output Circuits and Control: The servo-balanced analog inputs and outputs are hand trimmed at the factory for matching levels. They can be operated unbalanced without a change in gain. All outputs are equipped with precision machine-wound inductors in an L-C circuit to absorb digital noise. Analog input and digital output levels can be individually adjusted in 0.5dB steps. The inputs can be linked together and selected outputs can be grouped. Linked or grouped levels are adjusted together and any offsets are maintained. The standard PARAMEDICs 22,24 and 26 are equipped with detachable Phoenix type audio connectors. XLR equipped models are available at no additional cost. Either model may be factory equipped with a set of fully balanced input transformers, output transformers, or both.
Output Levels: Individual outputs can be muted and have their polarity reversed. The 4 or 6 output levels can be assigned in up to three groups with a Master Level to control all. The Master level may also be muted.
Labeling: Name labels can be applied to all inputs, outputs, crossover sections and memories. These user assigned custom names will be displayed throughout the setup process.
Advanced Technology DSP Engine: A powerful Analog Devices' SHARC DSP with 32/40 bit floating point math delivers the raw computing power necessary to implement a complete multi-function audio processor. New discrete, 24 bit AD/DA converters sample the data at 48kHz assuring a wide dynamic range. The firmware can be updated in the field via the PC by re-flashing the unit with files downloaded from our web site.

White Instruments Paramedic 26-P
100% Matrixable - 100 Parametric Filters - Direct RS232 Control - Logic In and Out

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The new Paramedic 48 has no front panel controls for economy and security. All setup and operating functions are conducted from a PC running Windows 95/98/NT4/2000 and White Windows 2 software. The computer/DSP link is generic RS-232 or RS-485 requiring only an industry standard cable. No outboard interface boxes are required. The RS-xxx protocols and nonvolatile E2PROM are new and more efficient. Transfers between the PC and PARAMEDICs as well as memory I/O are 50% faster. A convenient data connector is placed on the frontpanel and paralleled to the rear panel. Up to 250 PARAMEDICs can be daisy-chained (in any mix of models) and controlled from one PC. 
Its All in the Timing’ Mixing Matrix: The basic mixer allows the assignment/ mixing of any input to any to all outputs. This new<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office"><o:p></o:p>
generation of ParaMedics features an Advanced Mixer giving the user delay and level control within the mixing matrix. Now pinpoint imaging and timing can be achieved in LCR and 5.1 systems by aligning<o:p></o:p>
the center channel loudspeaker with the left and right. Comb filtering can be all but eliminated in the audible frequency range.<o:p></o:p>

White Instruments Paramedic 48-P
100% Matrixable - 100 Parametric Filters - Direct RS232 Control - Logic In and Out

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White Instruments Paramedic 48-XLR
Same as Paramedic 48 but has XLR input/output connectors.

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The ParaMedic+ represents the latest technology in digital signal processing engines and offers remarkably higher performance at drastically reduced costs when compared to the last generation. The processing power of a ParaMedic is approximately 4 times that of our 5000 Series DSPs at about half the price. 
These new processors combine the advantages of a pair of one-third octave or one (1) one-sixth octave graphic equalizers, but you only invoke the filters you need. Add to that the flexibility of two channels of parametric equalizers to surgically remove feedback and room ringing. Band limit the system with high-pass and low-pass filters and subjectively add shelving. A digital delay is available on both outputs with up to 344mS delay per channel, adjustable in 0.021mS steps. Some applications will require the isolation input and output transformers that are built into the ParaMedic+ -T model.  The ParaMedic has no front panel controls for economy and security. All set-up and operating functions are conducted from a PC running Windows 95/98/NT4 and White Windows 2 software. The computer/DSP link is generic RS-232 requiring only an industry standard cable. No outboard interface boxes are required. Programmed presets can be instantly recalled from a dry contact closure. A convenient data connector is placed on the front panel and paralleled to the rear panel. Up to 250 ParaMedics can be daisy-chained and controlled from one PC. 
  The Filters: 
White Instruments has manufactured filters of all kinds for over forty-five years from a book of transfer functions that was closed in the mid 1930’s. Our reputation for manufacturing audio filters that sound good and industrial filters that work is no accident. The secret is having the experience to select the appropriate transfer function and circuit topology for the task, then rendering the filter with a great deal of attention to craftsmanship and detail. This tradition is carried to our digital implementations. Pre-built files help create one-third or one-sixth octave filters on standard ISO frequency centers. All filters are adjusted in 1Hz steps and can be generated between 20Hz and 20kHz. Parametric filters have a response of -70 to +12dB in 0.1dB steps and can be as narrow as 1/70 octave or as broad as 2 octaves. High-Pass and Low-Pass filters can have responses from 6 to 48dB per octave, adjusted in 6dB per octave steps. High and Low Shelving filters have a fixed response of 6dB per octave.

White Instruments Paramedic+
Two-channel digital parametric EQ with delay on both channels

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The ParaMedic+ represents the latest technology in digital signal processing engines and offers remarkably higher performance at drastically reduced costs when compared to the last generation. The processing power of a ParaMedic is approximately 4 times that of our 5000 Series DSPs at about half the price. 
These new processors combine the advantages of a pair of one-third octave or one (1) one-sixth octave graphic equalizers, but you only invoke the filters you need. Add to that the flexibility of two channels of parametric equalizers to surgically remove feedback and room ringing. Band limit the system with high-pass and low-pass filters and subjectively add shelving. A digital delay is available on both outputs with up to 344mS delay per channel, adjustable in 0.021mS steps. Some applications will require the isolation input and output transformers that are built into the ParaMedic+ -T model. The ParaMedic has no front panel controls for economy and security. All set-up and operating functions are conducted from a PC running Windows 95/98/NT4 and White Windows 2 software. The computer/DSP link is generic RS-232 requiring only an industry standard cable. No outboard interface boxes are required. Programmed presets can be instantly recalled from a dry contact closure. A convenient data connector is placed on the front panel and paralleled to the rear panel. Up to 250 ParaMedics can be daisy-chained and controlled from one PC. 
  The Filters: 
White Instruments has manufactured filters of all kinds for over forty-five years from a book of transfer functions that was closed in the mid 1930’s. Our reputation for manufacturing audio filters that sound good and industrial filters that work is no accident. The secret is having the experience to select the appropriate transfer function and circuit topology for the task, then rendering the filter with a great deal of attention to craftsmanship and detail. This tradition is carried to our digital implementations. Pre-built files help create one-third or one-sixth octave filters on standard ISO frequency centers. All filters are adjusted in 1Hz steps and can be generated between 20Hz and 20kHz. Parametric filters have a response of -70 to +12dB in 0.1dB steps and can be as narrow as 1/70 octave or as broad as 2 octaves. High-Pass and Low-Pass filters can have responses from 6 to 48dB per octave, adjusted in 6dB per octave steps. High and Low Shelving filters have a fixed response of 6dB per octave.

White Instruments Paramedic+ XLR
Two-channel digital parametric EQ with delay on both channels and XLR input/output connectors

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