RevMeter Pro 4+

Matthias Schorer

Designed for iPhone

    • 2.3 • 4 Ratings
    • $4.99

iPhone Screenshots

Description

RevMeter Pro measures the reverberation time of a room.
Burst and interrupted modes are supported. Because the dynamic range of the
iPhone microphone (30dB - 100dB) is too low to get 60dB dynamic RevMeter Pro supports only the RT30 and RT20 method.
RevMeter Pro also lets you send the measured results by eMail for later analysis. In addition screenshots
may be saved to the iPhoto album.

Definition of Reverberation Time:
The Reverberation Time RT60 is defined as the time required for reflections of a
direct sound to decay by 60 dB below the level of the direct sound. As it is usually very
difficult to achieve a dynamic range of 60dB two more methods have been established. They
are called RT30 and RT20. The measured time is the multiplied by 2, respectively 3 to
compute the RT60 time.

Measuring the reverberation time:
Historically reverberation time could only be measured using a level recorder
(a plotting device which graphs the noise level against time on a ribbon of moving paper).
A loud noise is produced, and as the sound dies away the trace on the level recorder will show a
distinct slope. Analysis of this slope reveals the measured reverberation time. Modern digital
sound level meters can carry out this analysis automatically.
Two basic methods exist for creating a sufficiently loud noise (which must have a defined cut off point).
Impulsive noise sources such as a blank pistol shot, or balloon burst may be used to measure the
impulse response of a room. Alternatively, a random noise signal such as pink noise or
white noise may be generated through a loudspeaker, and then turned off.
This is known as the interrupted method, and the measured result is known as the interrupted response.

Disclaimer:
Even though the RevMeter Pro Software has been calibrated using professional grade equipment, do no use RevMeter Pro
to carry out professional measurements. The author can not be held liable for any damage which might arise by using RevMeter Pro.

What’s New

Version 4.1

Fixed occasional crashes when saving images or sending them by eMail

Ratings and Reviews

2.3 out of 5
4 Ratings

4 Ratings

JTR4269 ,

Keeps crashing

I bought the app and it worked once. Now it keeps crashing even if I reset my phone and uninstall and reinstall the app.

RTMN ,

Easy feedback for your voiceover space!

This app is helpful for testing the reverberation of different rooms as well as the impact of acoustic treatments. Now I can do a before and after test as I hang blankets and other sound absorbing materials.

WDernayka ,

Keeps crashing

Keeps crashing….

App Privacy

The developer, Matthias Schorer, 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.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Supports

  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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