Delta
Hear what goes.
Switch on Delta and you hear only the removed signal, and see its spectrum. Whistle and bite in there means you are right on. Music in there means: back off.
vierminus audio · dynamic resonance suppressor
Cut the harsh.
Keep the soul.
Sensei Smooth listens for the frequencies that ring, whistle and bite, and pulls them down only while they stick out. One clean cut, nothing more. Free and open source.
一Listen
Hear the difference.
Same loop, twice: once untouched, once through Sensei Smooth. Switch while it plays. Both are level-matched, so louder never fools your ears.
0:00 / 0:10
Press play. The red area is what Sensei Smooth removes.
二The Cut
One clean cut.
Only where it rings.
A static EQ cuts all the time, whether the problem is there or not. Sensei Smooth decides again about 94 times per second, for every frequency.
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01 Listen
The sound is split into 1,025 frequency bands with overlapping windows, so nothing gets missed between frames.
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02 Compare
Every band is measured against its own neighbourhood. Whatever sticks out of that smooth line is a resonance.
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03 Cut
Only those bands are pulled down, smoothly, and released the moment they calm down. The rest keeps its energy.
三Interface
Every control has one job.
1
2
3
4
5
6
7
- 1 The display
- Live spectrum, the cut hanging from the top in vermilion, and the gold detection curve with up to six numbered bands you drag right in the display.
- 2 Amount
- The one knob to start with: maximum reduction per frequency, from a light polish to a hard tame.
- 3 Precision & Threshold
- How narrow the cuts are (1/3 to 1/24 octave), and how far a peak must stick out before it is touched.
- 4 Attack & Release
- How fast the blade comes in, and how fast it lets go.
- 5 Detect & Channels
- Listen to the track or to a sidechain. Stereo linked, L/R, Mid/Side, Mid only or Side only.
- 6 Delta, Mix & Out
- Hear only what is removed, blend phase-aligned, set the output level.
- 7 Band strip
- The selected band: on/off, shape (Bell, Shelf, Band Pass), frequency, gain and width.
四Modes
Three ways to work.
Sidechain
Make room.
Put Sensei Smooth on the guitar and feed the vocal into the sidechain. The guitar steps aside only in the bands where the vocal lives, and only as far as needed.
Guitar
Sensei Smooth
Mix
Vocalsidechain
Detection
Point the blade.
Double-click the display to add up to six bands. Bells and shelves make Sensei Smooth work harder or softer in a range. Band Pass goes further: only those ranges are touched, everything else is left alone.
Drag a band for frequency and gain, mouse wheel for its width, right-click for its shape.
五Specs
The details.
- Format
- VST3 + Standalone, Windows x64
- Coming
- macOS, Audio Unit
- Channels
- Mono, Stereo, optional sidechain input
- Stereo modes
- Linked, L/R, Mid/Side, Mid only, Side only
- Processing
- STFT, 1,025 bands at 44.1/48 kHz, 75 % overlap
- Latency
- 2048 samples at 44.1/48 kHz (~43 ms), reported to the host
- Sample rates
- 44.1 to 192 kHz
- Detection
- Up to 6 bands: Bell, Low/High Shelf, Band Pass; tilt and range
- Mix
- Phase-aligned dry/wet, delta listening
- Built with
- JUCE 8, C++17, tested with an offline DSP test suite
- Price
- Free
- License
- GNU AGPLv3
六Source
Free. Open.
Yours to bend.
Sensei Smooth is open source under the GNU AGPLv3. Grab a build from the releases, or read, build and change the code yourself.
# build it yourself
cmake -B build -G "Visual Studio 17 2022" -A x64
cmake --build build --config Release