oneTHNG: Fidelity Theory

FIDELITY IS A CHOICE. BREAK IT.

Anniversary Drop - Free for 72 hours - 10/10 thru 10/12

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Fidelity Theory turns digital fidelity into a creative control. One knob carries two axes: sample rate and bit depth travel together in opposite directions, and every position on the dial is a specific coordinate of the two. Turn it clockwise and the sample rate falls while the bit depth climbs. Turn it counter-clockwise and the sample rate climbs while the bit depth falls. There is no neutral point anywhere in the travel, and turning it down does not move you toward the dry signal, it trades bandwidth for grit.

Around that one control sit two decisions. COIL is the converter voicing, IRON or WORN, always in circuit and always ahead of the maths, so the color you pick is baked into the grit rather than sitting on top of it. RING is the aliasing stage at the end of the chain, folding everything above the fold line back into the track as inharmonic metallic digital grit. Level is matched across the whole sweep, so what you hear change is character, never volume.

One knob, one switch, one button. No pages, no second layer, no menu diving.

THE CONTROLS

• FIDELITY. The one knob. 48k · 6-bit at hard left to 6k · 16-bit at hard right, with 32k · 12-bit as the default coordinate. A live readout beneath the knob names the coordinate being imposed, whether or not audio is playing.
• COIL. The converter character, always running. IRON is an older machine, well kept: a presence lift around 4 kHz and a gentle drive that scales with knob position. WORN is a tired one: fatter low mids around 200 Hz, highs softened from around 8.5 kHz up, asymmetric saturation and a whisper of converter grain scaled by the signal envelope. Both voicings are gain-normalized.
• RING. The aliasing stage. Drives the signal to make high harmonics, then decimates with no anti-alias filter. Its fold point tracks the sample rate FIDELITY is currently producing, so it speaks at any knob position and not only at the extremes. Off is a starting point. On is a decision.

SIGNAL FLOW

COIL, then bit depth reduction, then sample rate reduction, then RING, then level matching. Converter color first, so COIL changes what gets degraded. RING last, so it folds whatever the rest of the plugin has already made.

CORE FEATURES

• One FIDELITY control sweeping sample rate and bit depth together along a single diagonal
• Sample rate 48k down to 6k, bit depth 6-bit up to 16-bit, default 32k · 12-bit
• Live coordinate readout, independent of your session sample rate
• COIL converter character with two gain-normalized voicings, IRON and WORN
• RING aliasing stage with a fold point that tracks the rate being produced
• Level matched across the full sweep, bounded to a few dB of correction
• Dither, never louder than -60 dBFS
• Smoothed parameter changes and crossfaded switching, safe to move mid-take
• Host bypass with a ramped transition, automatable from the DAW
• 25 Factory presets across five categories: CANON, TOUCH, PRISM, PUSH and SCORCH, plus Locker, Favs and Drops
• UI scaling from 75 to 200 percent, with optional drag to resize

WHAT IT IS NOT

Not a bitcrusher with two knobs asking you to find the pair yourself. Not a sample rate reducer with a cutoff. Not a tape or vinyl plugin. If you need to remove a specific frequency problem, an EQ is the right tool. Fidelity Theory is for what the whole thing sounds like it was recorded into. It sits on drums, loops, samples, keys and vocals, and works on a full mix or a drum bus in small amounts.

• Formats: VST3, AU
• macOS: 11 and above, Apple Silicon and Intel (universal)
• Windows: 10 and above, 64-bit
• Software version: 1.0.0
• Delivery: digital download only, available immediately after purchase

• oneTHNG: Fidelity Theory Manager, a branded installer for macOS or Windows that both installs and uninstalls, placing every format your system supports in its standard location
• All 25 Factory presets, built into the plugin
• A portable license file for your account