LAB / Room acoustics measurement

ALecho

A room acoustics check for everyone. Measure how a room rings with just a Bluetooth speaker and an iPhone, and get the verdict in plain words.

In developmentiPhoneiPad

Coming to the App Store [link]Privacy Support

FEATURES

Key features

One-tap measurementPlays a test signal through a Bluetooth speaker, records it with the iPhone microphone and analyses it straight away.

Plain-language verdictShows with pictures and plain words whether the reverberation time is right, too live or too dry.

Flutter echo and bass build-upFinds the rattling flutter echo you hear when you clap, and how much bass lingers (bass ratio).

Clarity and background noiseC50 and C80, background noise with NC rating, and STI with background noise show how clearly speech comes through.

Easy and Expert modesFirst-time users see the verdict; experts see the values for every frequency band.

AT A GLANCE

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PRIVACY

ALecho does not collect personal data. There is no sign-up, and no advertising, analytics or tracking tools.

How this app handles data

Measurement recordings stay in the app's memory only while they are analysed, and are never sent to us.
Recording (WAV) and result (CSV, text) files are created only when you tap Share.
Settings stay on your device.

SUPPORT

If you have a question or run into a problem, email us. Including your device model and iOS or macOS version helps us look into it faster.

info@algruppe.com

ALgruppe Co., Ltd. · +82 505-007-1542