Processing Structure - Linear Acoustic AERO.qc User Manual

Linear Acoustic AERO.qc User Guide
• TV 5B LOUD- TeleVision 5-Band LOUD. Similar to TV 5B HVY, but louder and
more punchy.
• TV 5B GEN Metadata- TeleVision 5-Band GENeral for use with Metadata. This pre-
set is tuned to apply minimal processing to the input audio when the dialnorm meta-
data parameter is being utilized. Audio is assumed to match the incoming dialnorm
value, and processing is relaxed around the value. If input audio exceeds or drops be-
low the applied metadata value, processing will gracefully correct it.
• TV 5B MED Metadata- TeleVision 5-Band MEDium for use with Metadata. Derived
from the GEN preset above, this preset narrows the comfort zone and applies slightly
more loudness control to the audio.
• ITU LOUDness LMT - Utilizes a specially tuned Input AGC plus Multiband Limit-
ers and the Final Limiter to slowly adjust the average program loudness to a given value
and the multiband and final limiters will act until the AGC catches up. This preset is
appropriate for ingest or live applications but because the Multiband AGC is bypassed
it has less ability to manage spectral balance which is important for transmission.
• Protection Limit - Sets all processing to unity ratio (1:1) and leaves only protection
look-ahead peak limiters in the signal path. Master output level is also set to 0dB so the
processor will provide a unity gain path for applied signals.
7.1.1

Processing Structure

Before choosing to jump into shark infested waters, we STRONGLY recommend starting
with a factory preset and modifying from there. Preset creation starting from scratch is an
incredibly time consuming process requiring large amounts of time and huge amounts of
content spanning all genres including music of every type, films of every type, television
dramas and sitcoms of every type, and talking-head programs of every type. We have al-
ready done much of the heavy lifting, and provide presets based on our own listening and
feedback from customers over the past few years. Certain parameters such as crossover
frequencies and channel coupling are not adjustable and are hard-coded to the most ap-
propriate values. That being said, access to all adjustable parameters is provided. There are
no factory adjustments hidden from users. Be careful with this power as most all settings
interact with each other, sometimes in ways that might not be immediately audible.
Below is a drawing showing the general signal flow of the processing core to indicate what
part of the chain is being adjusted by each parameter. Note that this signal flow is also cap-
tured in the "Adjust Processing" menu, with the top of the list being the input, and the
bottom of the list being the output.
Presets & Processing Adjustment
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