Harrison Consoles: ESP Waveforms

ESP Waveforms

The console TFT meter bridge in the MPC4-D, Trion, and Air24/7 consoles provide a full view of every channels level, EQ, aux sends, panning, bus assignments, compressor, gate, and automation states - simultaneously. Each channel is provided with an ESP waveform which works just like a workstation waveform view, but is available above every channel strip. These waveform views can be driven by any input source.  ESP Waveforms are a Harrison patented feature.

The ESP display offers a 20-second long waveform from any source. The waveform, which "follows" each channel regardless of the position on the surface, is generated as the audio passes through the channel and is accompanied by a standard VU/peak meter.  A horizontal line marks the "live" point.  The waveform above the line represents a history of the signal, while the waveform below the line represents a preview of audio yet to be played (in the case of a pre-recorded audio source).  The "live" point can be adjusted in real-time to show 20 seconds of preview, 20 seconds of history, or anything in between.

The ESP waveforms can be driven by any input source. Pro Tools (tm), tape playback, or live microphones... they all work. If the input source is timecode-synced, then the waveforms allow 10 seconds of "preview" in addition to 10 seconds of history. If the audio sources are "live", then the waveform shows the last 20 seconds of audio history. In addition to the input level, the gain reduction of the compressor is also recorded. This allows the mixer to see, over the course of time, how much gain reduction is being applied to a signal.

"The PreView Display has allowed us to cut mixing time by at least 25%! It's fantastic!"
- Roger Savage, Soundfirm, Oscar Nominated, 2 Time BAFTA Winner, 10 time AFA winner for Best Achievement In Sound.

This wealth of information, for every function of every channel, allows the mixer to have a "situational awareness" that allows mixing to be fast, effortless, and artistic rather than a chore.  Users have claimed a 20% improvement in mix deadlines because of their improved ability to manage large mixes.  Because the controls for all the channels are side-by-side, the mixer can scan across the entire desk to see which channel is feeding each aux, or each bus.  Once you've mixed on a Harrison PreView system, you won't want to work without it!

The channel strip provides a view of every nearly setting for the channel.  These controls are not "paged" one at a time, but are all shown simultaneously.  This is only possible because of the high resolution monitors and raw horsepower that IKIS provides.  Although other manufacturers have screens over their faders, none come close to the clarity, expansiveness, and elegance of the Harrison PreView channel displays.

Dynamics display.
  The dynamics display shows gate and compressor parameters in an innovative format that clearly indicates thresholds, ratios, and depths for both compressor and gate.  The top of the display shows separate input levels for the gate and compressor.  The gate and compressor gain reduction is shown on the 2 sides of the display (left for gate and right for compressor).   Finally, there are separate automation indicators for the gate and compressor.

EQ curve display.  This is a graphical representation of the 8-band EQ and 2-band filter. A separate automation indicator for the EQ and Filter shows automation states.

Channel Name.  The user-specified name for the channel is shown here.

Bus assignments.
  This section shows a lighted indicator for each bus that has been assigned to this channel.  An automation indicator shows automation state for both "main" and "reassign" busses.

Pan Indicator.  This pan indicator shows the panning position indicator which follows the joystick position.  The "rays" display the signal level which is being sent to each speaker in a 5.1 surround field.  The subwoofer (LFE) level is shown in yellow whenever this send is activated.  An automation indicator shows automation state.

Aux Sends.  This area displays 4 aux send pairs (8 auxes total).  These 4 aux pairs follow the selection on the panel, so that all system auxes (typically 32) can be displayed.  Each pair can be stereo or dual mono.  Each aux shows automation and pre/post data.

PreView Waveform and Input Meter.  The PreView waveform shows 20 seconds of audio in a waveform view.  Additionally it shows the gain reduction (in red) which has been applied to the audio.  The input meter shows an average level and changes from green to red if the average signal approaches 0 dBFS.  The white indicator is an instant attack, slow release peak meter.  This area also displays automation (read and write) indicators for the mute/fader, as well as channel trim, delay, return and audio mute states.  The small meters underneath show the input level on channels which are layered underneath (in normal mode) or linked to (in profiling mode) the large channel display.

Master Meters

In addition to the displays over each channel strip, there are special-purpose meters for the master section of the console. Any screen, including meters above channel strips, can be used as a master meter section to show console outputs or other critical metering information.

The "assignable" meter page displays 32 meters in separate VU and peak scales, to accommodate mastering tasks.  Any router signal source (busses, channel direct outputs, external inputs, etc) can be displayed on the meters.

The "Pec Direct" display shows 16 meters, each with a Pec (tape) and Direct (Bus) level side-by-side, and a waveform view below for each recorded track.  Often each user of the console has one of these screens over their master section.

The "Recorders" page shows 56 recording track outputs at a glance.

For Air24/7 broadcast consoles, the On-Air screen provides a comprehensive view of output levels and phase (a waveform provides 20 seconds of "history" for the program outputs), plus 32 freely assignable meters, 8 fader logic indicators, and a clock with advanced timer features.