Shruti Box
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Indian Bellows

The shurti box is a traditional Indian instrument that is similar to a harmonium as it works on a system of bellows, but uses switches instead of keys in order to control the pitch. Shruti boxes are used to produce a drone to play over during a practise session, or a concert. Singers often use it as an accompaniment during improvisation sessions.

I'd like to thank myNoise user Javi Otero for kindly helping me with the recording of this generator.

Testimonials - write yours here

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  Nice oscillating sound. But for serious work, C is missing. You should find it... ;) [Editor note : well, all tonal sounds on myNoise are tuned to C# plus we only have 10 sliders...]

  I really find this chord beautiful. The more and more you listen to it, the more it reveals about itself.

  The big 3! Let the kirtan begin!

  Some patterns I made: Aug-Min-Min7-F#-Maj and Scary song ← Dim-Aug-Min-Dim-Min-Sus4-Min

  Q: So where is D? A: this generator only offers 10 sliders, not enough to cover all the semitones. This Shruti box plays in C#. D doesn't fit well in such a scale.

  I found a really neat progression: 5th → Sus4 → Min7 → F# → Maj!

  A serene and open entrainment breeze...

  Philip Glass used this instrument in parts of the Godfrey Reggio 'qatsi' films - I never even knew how some of the sounds on those soundtracks were made, but this is indeed one of those mysterious instruments. Great generator for meditation or just to zone out. Thanks so much!

  ← This C# drone + G# harmonics combined with a bass heavy Indian Drone = a miraj style tanpura, creating a much more authentic sound.

  Lovely sound! I never knew this instrument existed at all... this setting is "Chord seeker".

  ← Relief. The technical transformation of this instrument into a playable generator is incredibly impressive and sounds very authentic.

  Ha! Really enjoying playing simple tunes with the presets. Try: Min - Aug - Sus4 - Min7 - Maj. Maybe others else will find good patterns :)

  I Like this one because so many of your other drones are unresolved harmonies, but it definitely works best NOT with all sliders engaged! I'll probably pair it with your Indian drone and/or the Himalayan Bowls. Lovely, rich sound makes it feel like I'm standing right next to the instrument.

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4th • 5th • 5th+8ve • Maj • Min • Aug • Dim • Sus4 • Min7 • F# • Air Leak Surprise Me

Animation Control

Start A B C

If you ♥ Shruti Box try...


Each slider controls a particular frequency band, from the lowest to the highest frequency. Adjust sliders to taste.

To mask undesirable noises, focus on bands sharing the same tone as the noise you want to cover. Doing so achieves a higher efficiency, and quieter masking noise levels.