ROOM TONE

Controls

• LearnOff / On — While On, learns the room tone per frequency and between the channels: play a passage of room tone only, then switch Off
• Threshold−80 to −20 dB — The input level below which a gap begins
• Fill Level−20 to +6 dB — Level of the fill against the learnt room tone
• Fade5 to 200 ms — How fast the fill fades in and out
• Hold0 to 500 ms — How long the input must stay below Threshold before a gap is filled
• ModeFill gaps / Constant bed — Fill gaps tops quiet passages up to the room tone; Constant bed adds the fill all the time
• ListenOutput / Fill only — Hear the output or only the fill

Best uses

• Fill the digital silence that cuts and gates leave in dialogue
• Keep the room under a podcast steady after noise reduction
• Lay a matching room bed under ADR recorded elsewhere
• Bridge the gaps between edited takes from the same location

Properties

Signal chain: Learn: Input → 2048-Point FFT (4× overlap, Hann) → Power per Bin and Cross Spectrum. Fill: Learnt Magnitudes + Random Phases (Park-Miller) → IFFT Overlap-Add → Fill Level. Gap Detector (10 ms Power, Threshold, Hold) → Top-Up to the Room Tone → Fade → Output = Input + Fill. The fill never repeats, keeps the stereo coherence of the recording and adds only what is missing, so a gap that still holds its room tone gets nothing; no latency. The profile lives in memory and is not saved with the project: learn again after a reload.

Formats

• JSFXJSFX for REAPER, with REAPER's own sliders
• GFXJSFX GFX for REAPER, with its own interface
• VST3VST3 for any DAW
• CLAPCLAP for any DAW
• LV2LV2 for Linux DAWs such as Ardour, Carla and Qtractor

Factory presets

Podcast Pauses · Fast Edits · Smooth Gaps · Quiet Studio · Noisy Location · ADR Bed · Listen to the Fill

Try it