Shruti Bot
Shruti box drone with effects
About
This app simulates a tunable shruti box with ten reeds and adjustable bellows for dynamic sound. It offers a unique approach to intonation and includes various effects like LFOs, resonance, chorus, and tape delay.
What's New in Shruti Bot
1.1
September 3, 2026
Shruti Bot is now an Audio Unit. Load it in AUM, GarageBand, Loopy Pro or any AUv3 host and run the drone alongside everything else you're recording. Play a note and the drone follows the key. Your session saves the whole instrument, not just a preset name. Nineteen drones built in. Twelve keys of the Sa-Pa riyaz tuning, ready to practise to. A Ma tuning for Malkauns, Marwa and the other ragas with no Pa, where a Pa drone fights the raga. And four that show what the tuning pegs are really for - komal Re, komal Ga, komal Ni, and a just 5/4 major third against the one your piano gives you. PLAY mode. Press a key and the drone speaks with an attack, decay, sustain and release. Turn RELEASE to HOLD and it keeps droning after you let go - the way a shruti box should. Save over a preset. Refine a sound and write it back to the preset you started from, instead of leaving a trail of near-identical copies behind you.
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FAQ
What is Shruti Bot?
Shruti Bot is a virtual instrument that accurately simulates a tunable shruti box. It features ten reeds tuned to just intonation and allows for dynamic control over volume and timbre through adjustable bellows.
How does Shruti Bot handle tuning?
Shruti Bot uses just intonation for all reeds, ensuring they lock together harmonically. Each reed has a tapered tuning peg allowing for adjustments of +/- 100 cents, and you can detune neighboring reeds to create acoustic beating.
Can I customize the key and microtonal aspects in Shruti Bot?
Yes, Shruti Bot allows you to select any tonic across twelve pitch classes and six octaves. Each pitch class has its own microtonal trim, enabling you to build tunings beyond twelve-tone equal temperament.
What kind of movement and modulation does Shruti Bot offer?
Shruti Bot includes two free-running LFOs for each reed, affecting both tuning and level. These LFOs drift in and out of phase, creating a dynamic and evolving drone that sounds alive.
What audio effects are included in Shruti Bot?
The app features a swept resonance, stereo chorus, tape delay with pitch-bending capabilities, and a plate-style reverb with a decay time from 0.25 to 6 seconds.
Does Shruti Bot have ads?
No, Shruti Bot is completely ad-free. The developer explicitly states 'No ads' in the description, ensuring an uninterrupted user experience.
Is Shruti Bot available on multiple platforms?
Based on the provided data, Shruti Bot is currently only supported on iPhone. It is not indicated to be available on Android or other platforms at this time.
How often is Shruti Bot updated?
Shruti Bot was last updated on September 3, 2026, indicating a recent update. The app was initially released on August 17, 2026, suggesting a commitment to ongoing development and support.
