Eyring
Room Acoustics
Only for iPhone
$14.99 · Designed for iPhone. Not verified for macOS.
iPhone
Measure how your room really sounds: reverberation time octave by octave, through your own speakers and a calibrated USB-C mic, with a plain reading of what it means.
Eyring measures how your room responds to sound. It plays nothing itself: you play its test sweep through your own speakers, Eyring records it with a calibrated measurement microphone, and recovers the room's impulse response. Everything else follows from that.
MEASURE
• Export a precise logarithmic sweep, at 48 kHz or 44.1 kHz, and play it on whatever drives your speakers
• Record it where you listen; the unknown delay between record and play does not matter
• Reverberation time as Tmid, T20 and T30, following ISO 3382
• Every octave band from 63 Hz to 8 kHz, so you see where the room rings, not just how much
• The decay curve itself, so you can see what was fitted
• Save the takes worth keeping, named after where the mic stood, and open them again later
HONEST ABOUT NOISE
Every room has a noise floor. Eyring measures it, cuts the decay where it meets it, and leaves out any figure the take cannot support rather than inventing one. If the sweep is missing from a recording, it says so.
A READING, NOT JUST A TABLE
Curvature, bass ratio, clarity C80 and definition D50, turned into plain sentences by rules taken from ISO 3382-1, Beranek and DIN 18041: how far the take can be trusted, and what shape the room's decay has.
AGAINST A TARGET
Enter the room's size and what it is for, and Eyring comd target for that use, EBU Tech 3276 and ITU-R BS.1116for listening rooms and DIN 18041 for music, speech and es how much absorption each band would need. It alsomarks where the bass stops being reverberation and becomption arithmetic no longer applies.
CALIBRATED EXTERNAL MICSPlug in a USB-C measurement microphone and load its calisted with the Dayton Audio iMM-6C. Every result sayswhich microphone recorded it and whether calibration wasrophone works too, for indicative figures.
PRIVACY
The recording is analysed on your iPhone, held in memory transmitted. Saved takes keep the results, not the
audio, and stay on your device. No account, no analytics
HONEST ABOUT ACCURACY
Eyring is not a certified acoustic measurement system. Otion in the room, and bass in particular varies from spot
to spot. Do not rely on Eyring where a certified measure
Named after Carl Eyring, whose reverberation equation hotes.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, carlos prieto ortiz, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- carlos prieto ortiz
- Size
- 758.8 KB
- Category
- Productivity
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Carlos Prieto Ortiz 2026
