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HeartSync plugin interface — heart-rate to BPM tempo mapping

HeartSync

The audio plugin that listens to your heartbeat.

Free · macOS & Windows

Features

Heart rate to BPM in real time. Control data only — no audio-thread processing.

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HeartSync maps pulse data to BPM, smooths short-term fluctuations into stable tempo motion, and stores recallable states for rest, flow, and cardio sessions. Link and OSC routing stay available in parallel, while processing remains control-only with no audio-thread signal processing.

Quick Start

Install through the Hub, pair your sensor, point your DAW at HeartSync’s tempo, and confirm the BPM follows.

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Insert HeartSync on a track, scan and pair your device, choose the active monitor, and enable Tempo Sync. The host tempo then follows your heart rate in real time with smoothing applied.

Ableton Live supports Link and OSC workflows, Logic Pro uses Ableton Link clocking, and Reaper uses an OSC control surface. Hosts that can slave to an external MIDI clock can instead follow HeartSync’s clock source; the setup guide has the per-DAW steps and the current device name.

Compatibility

Bluetooth LE heart-rate monitors. DAWs that can follow an external tempo source.

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HeartSync works with Bluetooth LE heart-rate monitors (or your Apple Watch via the free HeartSync Mobile iOS app), and drives tempo in hosts that can follow OSC, Ableton Link, or an external MIDI clock — Ableton Live, Logic Pro, Reaper, FL Studio and Bitwig among them.

HeartSync Mobile

HeartSync MobileFree

Use the free HeartSync Mobile app (iPhone + Apple Watch) to stream your heart rate to the plugin — no extra hardware needed.

↗ App Store

Connectivity

Reads a Bluetooth LE Heart Rate Service source and sends the BPM to your DAW.

Apple Watch

Start a workout on Apple Watch and your live heart rate streams to HeartSync (HeartSync Mobile runs on iPhone and Apple Watch).

Privacy

No Conscious Audio account needed. See the App Store listing for how HeartSync Mobile handles data.

See What People Are Saying

Bedroom Producers Blog

“…it’s been ages since I’ve seen a plugin concept that feels really innovative.”

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Specifications

Version — Public Beta

macOS — HeartSync 2.3.1

Windows — HeartSync 2.1.0

Format

VST3 — macOS & Windows

Audio Unit — macOS only

System

macOS 10.15 or later (Intel) · 11 or later (Apple Silicon) — Universal

Windows 10 / 11 (x64)

macOS minimums are the declared build targets of the shipped Hub 2.3.3 and HeartSync Beta 2.3.1 binaries

Processing

Control data only — no audio-thread signal processing

Runs continuously while a sensor is connected

Connectivity

Bluetooth LE (Heart Rate Service)

Auto-discovery & reconnection

DAW Integration

Ableton Live OSC primary · Link secondary

Logic Pro Link primary

Reaper OSC primary

MIDI clock (24 PPQN) for DAWs that can slave to an external clock

Verified Devices

Polar H10 / Verity Sense

Garmin HRM-Pro / HRM-Dual

Wahoo TICKR / TICKR X

Other monitors using the Bluetooth LE Heart Rate Service should also work

Changelog

2.3.1

Fixes a rare crash on DAW close — no behaviour changes; 2.3.0 sessions load identically

2.3.0

Heart rate graphs survive editor close / reopen

Ableton Link re-assertion rate-limited — eliminates tempo oscillation

Memory footprint under 10 MB in typical sessions

Restored graphs display correct X-axis duration

34 bug fixes — mutex stall, BLE reconnect race, parameter thread safety, AU validation

2.2.0

AU plugin support for Logic Pro

Audio processing fully lock-free — lower CPU

Bridge helper ships as Universal Binary (Intel & Apple Silicon)

UI toggle responsiveness fixed

MIDI Clock timing edge cases resolved

2.1.0

Reduced CPU overhead during live streaming

Smarter rendering — static UI cached, dynamic content redrawn only when needed

Fixed plugin not reconnecting after remove and re-add

Eliminated background polling inefficiencies

Smoother real-time heart rate graph

2.0.0

Initial beta release with core tempo sync functionality