RoomScope 4 with additional hardware support is now available for download

RoomScope 4.0 is now available for download on the App Store.

As with the recent update to IOScope, RoomScope now supports fractional octave band smoothing of 2Ch FR magnitude and coherence data (1/6, 1/12, and 1/24 octave bandwidths). RoomScope also adds built in support for iTestMic and iAudioInterface2 from Studio Six Digital and support for automatic downloading of sensitivity and frequency response data for the Dayton UMM-6 USB measurement microphone.

Other improvements to RoomScope include the following:

– RoomScope 4 employs a new plotting framework for real-time data graphs and high resolution image export.

– A bar graph is now used to display room acoustics parameters across octave or 1/3-octave frequency bands.

– Support for drawing directly to an external screen (from iPad) has been removed in favor of screen mirroring, which is handled by iOS.

– Audio hardware input and output options are now presented from a separate toolbar button, which looks like a microphone, on iPad, iPhone 6 and iPhone 6 Plus.

– It is possible to adjust the line thickness of plotted data.

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Download RoomScope 4.0

 

RoomScope 2.1 validates reverberation time measurements

In version 2.1, RoomScope now presents a nonlinearity parameter to offer additional guidance on the validity of each acoustic decay parameter (T20, T30, T60, EDT). Values of greater than 10 ‰ (per mille, or parts per thousand) indicate that the estimated reverberation or decay time may be suspect, or that integration limits may need to be adjusted manually to obtain a more accurate result.

RoomScope 2.1 is now available for download on the App Store.

RoomScope Screenshot iPhone 5

Download RoomScope 2.1

Electroacoustics Toolbox 3.5 adds AppleScript support for room acoustics

Version 3.5 of Electroacoustics Toolbox extends AppleScript support to the Room Analyzer tool (sold separately), which enables automated room acoustics analysis and data retrieval via AppleScript. Now, in addition to automating the acquisition of impulse response data, users can employ AppleScript to control the analysis of that data to extract relevant room acoustics parameters.

With increased automation capabilities, the Room Analyzer tool also now takes additional steps to verify the accuracy of acoustic decay time estimates, including T20, T30, T60, and EDT. For each of these parameters a nonlinearity value (in per mille, or parts per thousand) indicates how close the acoustic decay approaches a straight line, which is the basic assumption in reverberation time estimation. A nonlinearity value greater than 10 suggests that the user might want to take a closer look at the data to determine whether adjustments must be made to the integration limits for the decay curve to get a more accurate measurement.

Version 3.5 also addresses some issues, which include the following:

– Room acoustics parameters are properly plotted across 1/3-octave bands in the Room Analyzer tool.

– Radio buttons are properly deselected in the IR source drawer of the Room Analyzer tool when switching between Dual FFT or Oscilloscope measurements.

A bug has been addressed that could prevent the “Try” buttons in the project window from successfully opening a trial of the Noise Dosimeter or Room Analyzer tool.

RoomAnalyzerScreenshot

Download Electroacoustics Toolbox 3.5 from the Mac App Store.

Download a free trial of Electroacoustics Toolbox 3.5 from FaberAcoustical.com.

 

 

RoomScope Updated for iOS 7

RoomScope version 2.0 now fully supports iOS 7 with a refreshed look and feel that is consistent with recent updates to SignalScope Pro and IOScope. Although RoomScope still supports iOS 6, its appearance remains largely the same as before on the older iOS.

What’s new in RoomScope 2.0?

– RoomScope’s appearance has been completely revamped for iOS 7. RoomScope supports both iOS 6 and iOS 7, but looks largely the same on iOS 6 as the previous version.
– Audio data handling is more efficient.
– When entering a preferred sample rate, “48k” can be entered in the text box, as an alternative to typing out “48000.”
– Default input sensitivities have been updated, based on measurements of the iPhone 5S and 5C microphones and headset inputs. Nominal input sensitivities have also been updated for iPad Air and iPad mini with Retina display.
– Cursor info text now uses a larger font.
– 2Ch IR works properly when the internal excitation signal is selected for the X input and pan is set to 100%.
– A bug in the HTTP file server has been fixed.

RoomScope is a universal app designed for iPad, iPhone, and iPod touch.

 

RoomScope Screenshot iPhone 1

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Download RoomScope from the App Store.

 

Faber Mac Apps Updated for Mavericks

All Faber apps for Mac have been updated for Mac OS 10.9, Mavericks. These are minor updates, which include the following improvements:

– This update addresses plot freezing issues on Mac OS 10.9 (Mavericks).

– SLM and Octave Analyzer tools operate more efficiently.

– A potential crash has been addressed in the Signal Generator tool.

Electroacoustics Toolbox 3 Screenshot Electroacoustics Toolbox Screenshot 2

 

Download a free trial from FaberAcoustical.com:

Download Electroacoustics Toolbox 3.4.1

Download SignalScope Pro 3.1.5

Download SignalScope 3.1.5

Download SignalSuite 4.1.5

 

Download from the Mac App Store:

Download Electroacoustics Toolbox 3.4.1

Download SignalScope Pro 3.1.5

Download SignalScope 3.1.5

Download SignalSuite 4.1.5

 

RoomScope 1.6 automatically finds the end of the decay

In version 1.6, RoomScope’s Room Analyzer tool now estimates the optimal end point for the decay curve–that is, the point at which the acoustic decay meets the noise floor in the impulse response data. This allows the Room Analyzer to provide better reverberation time estimates without the need for the user to manually adjust the decay curve limits with the built-in cursors. Decay curve limits can still be set manually, as before.

RoomScope 1.6 Screenshot

Download RoomScope 1.6

 

RoomScope now loads IR data from CSV, MAT, and TXT files

In version 1.5, RoomScope’s Room Analyzer tool can now load impulse response data from csv, txt, and MAT files saved within the app. Any csv, txt, or MAT files which contain time domain data, and are created by Faber Acoustical’s other iOS apps are also supported. Data files created in other Faber apps, such as SignalScope Pro or IOScope, would need to be added to RoomScope via iTunes File Sharing.

RoomScope 1.5 is available for download on the App Store.

Download RoomScope

RoomScope File Loading

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. The dual-channel capability has been built-in since version 1.0 of RoomScope, enabling the use of an omnidirectional loudspeaker and various excitation signals including broadband noise and frequency sweeps. The new single-channel IR acquisition tool can capture IR data directly by popping a balloon or firing a starter pistol within an acoustic space of interest. The input signal can be triggered in order to automatically begin data acquisition when the instantaneous input level crosses a user-defined threshold.

It should be noted that single channel analysis doesn’t mean that only one channel of data can be captured at one time. In fact, with an iPad and a multi-channel USB audio interface, it is possible to capture IR data from multiple microphones simultaneously (obviously, the mics and supporting cables, adapters, etc, would also be needed). Single channel analysis simply means that each input channel is treated independently from all other input channels. In contrast, dual-channel analysis means that a single measurement is based on data acquired from two input channels (using auto and cross-spectral analysis).

RoomScope 1.3 is now available for download on the App Store.

RoomScope 1.3 Screenshot

Download RoomScope 1.3

Room acoustics comes to the Mac in Electroacoustics Toolbox 3.2

Have you been looking for a tool to measure the reverberation time, early decay time, clarity and definition of a listening room, auditorium, or concert hall on your Mac? With version 3.2 of Electroacoustics Toolbox, the search has come to an end. Within Electroacoustics Toolbox 3.2 you will find a new room acoustics analyzer tool (sold separately) that puts room acoustics analysis in your grasp.

The new Room Analyzer tool in Electroacoustics Toolbox employs the integrated impulse response method to calculate reverberation time, early decay time, center time, clarity, and definition, as defined in the ISO 3382 standard. The Room Analyzer also allows you to adjust the Schroeder decay curve integration limits with either a click and drag of the mouse or with two independent data cursors. You can plot the calculated room acoustics parameters versus whole or 1/3-octave band center frequency.

Room Analyzer Features:

  • Directly analyze impulse response (IR) data acquired in the Dual FFT Analyzer or Oscilloscope tools.
  • Import impulse responses acquired from other apps and stored in AIF, CAF, or WAV audio files.
  • Export calculated parameter values to CSV, TXT, or MAT files, with the option to include raw IR data.
  • Save impulse response (IR) data to AIF, CAF, or WAV audio files.
  • Save high-resolution plots to PDF files.
  • Analysis
    • Calculate room acoustics parameters according to ISO 3382, including T20, T30, T60, EDT, Ts, C50, C80, D50, and D80, over the entire audio frequency range, or in whole or 1/3-octave bands. Low, mid, and high frequency values for each parameter are also calculated.
    • Plot room parameters versus whole or 1/3-octave center frequency.
    • See the Schroeder decay curve and regression line plotted over the squared IR and manually fine tune the decay curve integration limits.

For whole and 1/3-octave band analysis, the Room Analyzer supports data with sample rates of 44.1 kHz or 48 kHz.

Room Analyzer Screenshot

Electroacoustics Toolbox 3.2 also brings back the Noise Dosimeter tool that was previously available in version 2. The Dosimeter tool is also sold separately.

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A free trial of Electroacoustics Toolbox is available for download from FaberAcoustical.com.

The Toolbox is also available for download on the Mac App Store.

 

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. The maximum measurement length is dependent on the amount of memory available on the device, so 16-second measurements are currently only supported on the iPhone 5, iPad 3, and iPad 4. The previous generation of devices, including the iPod touch 5, supports 10-second measurements, and older devices are still limited to measurement durations of 5 seconds or less.

RoomScope 1.2 also offers the following additions:

  • Center time has been added to the list of calculated acoustic parameters.
  • All parameters are now calculated in low, mid, and high frequency bands, as defined by the ISO 3382 standard.
  • The calculation of the clarity and definition parameters (C and D) compensates for the delay of the whole and 1/3-octave band filters, as described in ISO 3382.
  • Raw IR data can now be excluded or included in CSV, MAT, and TXT file data exports.

RoomScope turns your iPad, iPhone, or iPod touch into a room acoustics measurement and analysis tool. With RoomScope, you can measure a room impulse response and then calculate reverberation time, early decay time, center time, clarity, and definition, as defined in the ISO 3382 standard. RoomScope also allows you to adjust the Schroeder decay curve integration limits with the touch of your finger and plot the calculated room parameters versus whole or 1/3-octave band center frequency.

RoomScope

 

Download RoomScope 1.2

IOScope brings true dual-channel transfer function and impulse response analysis to iOS. With IOScope, measure loudspeaker impedance, frequency response, and sensitivity. Measure a room impulse response. Tune a large sound reinforcement system, time-align a set of surround sound speakers, or optimize your home stereo. Determine the actual cutoff frequencies of your latest speaker crossover circuit, or teach your students the fundamentals of Fourier analysis of dynamic systems.

Measure frequency response magnitude and phase, coherence, and group delay. Time domain functions enable you to measure impulse response and auto/cross-correlation. IOScope includes a built-in signal generator for producing suitable excitation signals to analyze your system or device under test (DUT). See http://youtube.com/faberast for a video demo of loudspeaker impedance measurement.

 

Download IOScope 2.3

 

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