Orra Deverb, a de-reverb plugin developed by Orra Audio, is currently being given away for free.
In this article we cover the giveaway details and an overview of Orra Deverb, so please use it as a reference.
What Is Orra Audio “Orra Deverb”?
Orra Deverb is a de-reverb plugin that reduces the room sound in already recorded tracks — both the reverb tail that lingers after notes and words, and the ambience laid underneath it. It needs no reference signal and works from a single track alone, mono or stereo. Press the Scout button and it measures the room response from the material itself and sets every control automatically, so all that is left for you to do is balance it by ear.
At the core of the processing sits a room model described by two numbers: Room Decay (the time it takes for the reverb to fall by 60 dB) and Reverb Level (the level of the reverb relative to the direct sound). Audio is analysed in 43 ms frames with 75% overlap, and for every frequency the plugin decides whether the level is falling along the decay curve the model predicts, whether a short-term predictor can explain it from the sound immediately before it, and — on stereo tracks — whether left and right agree, in order to separate room sound from source. It takes advantage of the fact that a centred vocal produces the same signal on both sides while stereo reverb does not.
The direct sound keeps its original phase and stereo image, and only its level changes over time. Phase is never processed at all, and the first 40 ms after a sound starts — the range where early reflections live — is left untouched, so the texture of the direct sound is preserved.
Key Features
- Scout: measures the room response from your own material and sets the controls automatically (play a passage that contains pauses or gaps and it stops by itself after 8 to 30 seconds and writes the result)
- If Scout cannot find at least four usable tails, it reports how many it detected and changes nothing instead of guessing
- Scout’s writes are handled as ordinary parameter changes, so host recognition, automation overrides and undo all work as usual
- Reduction (0–100%): how much room sound is removed. Scout sets it to 95%, and most material ends up between 60% and 95%
- Room Decay (0.15–3.00 s): the decay time (RT60) of the room model
- Reverb Level (−24 to 0 dB): the level of the reverb relative to the direct sound
- Preserve (0–100%): how strongly attacks and tonal detail are protected
- Focus (−100 to +100%): tilts the amount of removal toward the low end or the high end
- Smoothing (0–100%): controls how quickly the amount of removal deepens from frame to frame
- Max Reduction (3–30 dB): the maximum cut allowed at each frequency
- Output (−18 to +18 dB): output trim
- Removed: monitor only the components being taken out, so you can judge by ear whether you are going too far
- Bypass: passes the original signal at the same latency, so switching never shifts the timing
- All eight knobs plus Removed and Bypass support host automation
- Three displays: a spectrum, the amount of removal per frequency, and the tail as it shortens
- Six starting points (Natural / Vocal / Dialogue / Instrument / Drums / Mix)
- A/B comparison (duplicate with COPY A > B) and tooltips in seven languages
How to Install and Activate Orra Deverb
You can check out with nothing more than an email address from the “GET ORRA DEVERB” button on the official product page. The link in the email you receive lets you download and install the plugin, and the serial number included in that same email activates it when you launch it.
Summary
That was the free giveaway information for Orra Audio’s Orra Deverb. Being able to measure the room straight from your own recording with a single button and pull the tail back without touching phase makes it a genuinely useful tool for vocals, dialogue and location recordings alike, so grab it while it is still free.