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SignalScope

By Faber Acoustical, LLC

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Description

SignalScope turns your iOS device into a powerful real-time spectrum analyzer and oscilloscope. Easily measure audible frequencies in SignalScope’s FFT analyzer. See http://youtube.com/faberast for video demos.

For more information regarding compatible audio hardware, visit http://blog.FaberAcoustical.com.

Features:
- Analyze signals coming from the iOS device’s current audio input source, or from the built-in accelerometer.
- Assign input channel units and sensitivities for individual USB Audio devices. Direct support is included for the Digiducer 333D01 accelerometer and miniDSP UMIK-1 measurement microphone.
- Manually switch between available audio input sources.
- Load microphone frequency response data (FRD) and apply frequency response correction (FRC) to FFT spectrum measurements.
- Audio input is typically sampled at 48 kHz or 44.1 kHz (higher and lower sample rates are possible, even up to 192 kHz, with hardware that supports it). Built-in accelerometer data is sampled at roughly 100 Hz.
- Zoom in or out on spectrum and waveform displays with two-finger expand/pinch gestures, even while the analyzer is running.
- Pan vertically or horizontally in zoomed displays with two-finger scrolling.
- Pinpoint individual sample values or frequencies with a cursor.
- Save high-resolution spectrum or waveform display images as PDF files or as JPEG images in the iPhone's Camera Roll photo album.

SignalScope supports full and partial upgrades to the additional tools and functionality offered in SignalScope Pro. Upgrades may be purchased via in-app purchase.

Available in-app purchase upgrades include:
- Upgrade to the functionality of SignalScope Pro.
- Signal Generator tool (not the same as SignalSuite).
- - Random and periodic pseudorandom noise (period defined by FFT length)
- - White and pink noise weighting
- - Lin and log frequency sweeps
- - Tone generator
- Octave and 1/3-octave Analyzer tool (RTA).
- - Whole and 1/3-octave RTA (based on digital Butterworth bandpass filters)Fast, Slow, and Impulse response times
- - Flat, A, and C frequency weighting
- - Equivalent and time-weighted exponential average levels
- - Max, peak, and elapsed time also captured
- Level Meter tool.
- - Flat, A, and C frequency weighting
- - Equivalent and time-weighted exponential average levels
- - Max, peak, and elapsed time also captured
- Real-time Spectrogram Analyzer (available in 2D and 3D versions)
-- Frequency resolutions between 1 and 50 Hz may be specified for audio input (between 1 Hz and 10 Hz for the built-in accelerometer)
-- Input data can be windowed with one of 7 different data window types
-- Lin, log, and dB magnitude scales
-- Lin and log frequency scales
-- Fractional-octave band frequency smoothing in 1/6, 1/12, and 1/24-octave bands.
-- Cursor peak track can track peaks in time, frequency, or both.
-- Color scale bar graph enables manual adjustment of magnitude scale and offset. The color scale can also be hidden.
-- Data may be exported to CVS, MAT, or TXT files for post processing or plotting. Optionally, include GPS location information with exported data (Data Acquisition Upgrade required).
-- Optionally save a high-resolution PDF file of the spectrogram plot, or save an image to your Photos library.
- Data acquisition (CSV, TXT and MAT file data capture) with downloading to Mac or PC via a standard web browser or iTunes File Sharing. Includes support for additional engineering units (V, A, m/s^2, m/s, g, ips), which are assignable to audio input channels.

What's New in Version 7.0.1

Version 7.0.1
- This update corrects some issues with Normal mode triggering in the FFT and Oscope tools.
- A bug has been fixed which led to potential crashing when working with linear averaging in the FFT analyzer tool.
- Some potential problems with data export have been corrected (Data Acquisition Upgrade, sold separately, required for data file export).
- Other bug fixes/stability enhancements.

Version 7.0
- A new real-time Spectrogram analyzer tool is offered within SignalScope via in-app purchase. The Spectrogram is available in 2D and 3D versions. The 3D Spectrogram includes all the functionality of the 2D version and adds powerful hardware-accelerated 3D plotting capabilities including a live 3D surface plot.
- The Spectrogram Tool offers FFT-based spectral analysis plotted over a time interval ranging from 2 to 20 seconds and frequency resolution ranging from 1 to 50 Hz.
- GPS coordinates, altitude, and accuracy may now optionally be saved with FFT, Spectrogram, or Oscope data when exporting to a data file (Data Acquisition Upgrade, sold separately, required for data file export).
- Downloaded frequency response data for connected microphones will automatically be saved in a file in the Frequency_Response_Data folder to make it easier to access at a later time.
- Smarter selection of the maximum frequency when FFT data smoothing is enabled.
- Fixed an issue with Full Autoscale in the FFT analyzer.
- Other minor cosmetic improvements and bug fixes.

Screenshots

iPhone Screenshot 1
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iPad Screenshot 1
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SignalScope
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This app is designed for both iPhone and iPad
  • $24.99
  • Category: Utilities
  • Updated:
  • Version: 7.0.1
  • Size: 6.9 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimized for iPhone 5, iPhone 6, and iPhone 6 Plus.

Customer Ratings

We have not received enough ratings to display an average for the current version of this application.
All Versions:

Top In-App Purchases

  1. Octave Analyzer RTA Tool$19.99
  2. Signal Generator Tool$9.99
  3. SignalScope Pro Upgrade$59.99
  4. Level Meter Tool$19.99
  5. Data Acquisition Support$19.99
  6. 3D Spectrogram Tool$39.99
  7. 2D Spectrogram Tool$19.99
  8. 3D Spectrogram Upgrade$24.99