Pop those balloons with RoomScope 1.3

A common request for RoomScope has been to directly capture room impulse response (IR) data using impulsive noise sources, such as balloons or starter pistols. RoomScope 1.3 now supports both single-channel and dual-channel IR data acquisition.

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RoomScope and IOScope measure longer IRs and use 64-bit FFTs

RoomScope 1.2 and IOScope 2.3 arrived in the iOS App Store this week. Both apps now support impulse response measurements up to 16 seconds long and use double precision (64-bit) FFTs in their measurements.

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Faber Acoustical brings room acoustics to iOS with RoomScope

Faber Acoustical is pleased to announce the immediate availability of RoomScope for iOS on the App Store. RoomScope both measures and analyzes room impulse responses, calculating acoustical parameters such as reverberation time, early decay time, clarity and definition. Room acoustics parameters may even be calculated and displayed in whole or 1/3 octave frequency bands.

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Are you looking for a measurement microphone for your iPhone?

Some time ago, I was made aware of the i436 measurement microphone from MicW. It looked like exactly what was needed to turn any iOS device into a quality sound level meter, or acoustical analysis tool, that you could truly carry around in your pocket, but it was limited in its utility by that pesky low-end roll-off that plagued earlier versions of iOS.

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iPhone 5 audio consistent with iPhone 4S

Today, I had the opportunity to begin testing the audio input characteristics of the new iPhone 5. As seen in the plots, below, the headset input frequency response matches that of the iPhone 4S, which was presented in the previous post. The behavior of the built-in microphone also seems to match that of the iPhone 4S, suggesting that Apple kept the audio input path essentially unchanged in the new device.

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