About & Pics

Description

SPECTRUMVIEW PLUS

Visualise, in real time, the frequencies that you can hear around you and even those you cannot. SpectrumView provides a high-quality, real-time spectrogram and spectrum analyser display, with a configurable sample rate and frequency resolution for the iPhone, iPad and iPod Touch. You can use this application to measure the highest tones you can sing, obtain visual feedback of the frequencies in your speech, identify an annoying sound, calibrate musical instruments and all sorts of acoustic analysis.

· *NEW* Refresh Spectrogram. Allows users to refresh the spectrogram so that it clears the spectrogram that had already been displayed.
· *NEW* Change min and max scale. Allows users to set their own minimum and maximum scale value on the spectrogram and spectrum analyser view, in both linear and log scale.
· *NEW* Set Recording filename. Recording filenames are editable and the suffix can be set to have an incremental value or date/time.
· *NEW* Access recordings and snapshots using the "Files" app. To ease the complicated process of accessing recordings and data snapshots using iTunes, all the data can be easily accessible using the "Files" app that is available from iOS 11.
· Web File Transfer. Allows you to access your files from another device using a web browser.
· Logarithmic scale. Allows you to set either linear or logarithmic frequency scales in the Spectrogram and Spectrum Analyser views
· Peak hold. Allows you to freeze and hold the peaks of the frequency envelope (three holds in three distinct colours) in Spectrum Analyser mode
· Save location. Never forget where a clip was recorded – uses the devices location services
· Auto lock disabled. During playback and recordings auto lock is disabled to prevent the device from automatically locking (if enabled), for uninterrupted recording/playback
· Multiple selectable sample rates from 8,000 Hz to 48,000 Hz
· High-frequency resolution with configurable signal analysis window lengths or Fast Fourier Transform (FFT) orders.
· Sound intensity represented using a colour spectrum scale from -96 dBFS to 0 dBFS.
· Frequency Pinch-to-Zoom. Allows you to zoom into the frequency space to look at a specific tone or frequency.
· Recording and Playback of Audio Files. Provides a fully functional audio recorder that allows you to record, pause and play back files in high-quality, uncompressed, wave format.
· Tap Data Cursor. Allows taps on any part of the Spectrogram or Spectrum Analyser display to obtain the exact frequency in Hertz (Hz) and level in decibels (dB) at that point.
· Musical Notes or Frequency Display on Tap. Selectable frequency or musical pitch notation to obtain the cent-accurate musical note e.g. A4 (22), when the display is tapped.
· Live Spectrogram and Spectrum Analyser Views of Recorded Files. Files recorded can be played back and the Spectrogram and Spectrum Analyser modes can be used to review the audio.
· Sharing Recorded Files by Email or iTunes File-sharing.
· High Quality Screenshots.
· Soundcloud support. Audio files can be uploaded to or downloaded from Soundcloud as well as being able to post audio to facebook.
· Playback from iTunes library. Files can now be analysed directly form the iTunes library.
· Fullscreen mode. Hide the menu at the bottom of the screen to get even more of the screen dedicated to frequency analysis.
· Selectable spectrogram colour scales. You can now select one of 7 colour scales for your spectrogram.
· Selectable window functions. You can now see the window function options provided.
· Apply gain. A maximum of 24dB gain can be applied to make ‘hard to see’ details easier to view.
· Open In. Audio files can be directly opened in SpectrumView. View files sent by email directly in SpectrumView.

 $7.99 in iOS App Store

Screenshots

SpectrumView Plus screenshot 1SpectrumView Plus screenshot 2SpectrumView Plus screenshot 3SpectrumView Plus screenshot 4SpectrumView Plus screenshot 5

Version History

Launched Dec 28, 2012 (over 6 years ago).

Releasing new versions every 8 months, on average.

Jul 18
2018
(Current)
Version 2.3

New features in 2.3
* User interface compatible with iPhone X
* Added Privacy Policy for the app
* Ability to refresh spectrogram during recording and playback
* Ability to set the minimum and maximum scale value of spectrogram and spectrum analyser view (in both linear and log scale)
* Ability to set recording filename - recording filename can now have incremental suffix or date/time suffix
* File names of image snapshots and data snapshots that are generated from playback are named according to the playback filename which makes it easier to locate the file.
* Allowing to access all the recordings, image snapshot and data snapshot from "Files" app (available from iOS 11)

Also,
* Updated to latest SDK and fixed user interface issues
* iOS 9.0 and above compatibility issues addressed (including file open issue)

Oct 19
2017
Version 2.2.1

New features in 2.2
* Ability to use playback options (play/pause/seek) while viewing spectrogram
* Ability to share recordings to various other applications that support audio playback and/or attachments
* Ability to generate data snapshots of spectrogram and spectrum (both playback and recordings)
* Ability to enables access, playback, and download recordings as well as other files from a web browser on devices accessible on the same WiFi network
Also,
* Various bug fixes (memory usage in iPad pro 12.9 inch, user interface issues, etc.)
* iOS 8.2 and above compatibility issues addressed

Oct 17
2017
Version 2.2

* Various bug fixes (memory usage in iPad pro 12.9 inch, user interface issues, etc.)
* iOS 8.2 and above compatibility issues addressed

New features in 2.2
* Ability to use playback options (play/pause/seek) while viewing spectrogram
* Ability to share recordings to various other applications that support audio playback and/or attachments
* Ability to generate data snapshots of spectrogram and spectrum (both playback and recordings)
* Ability to enables access, playback, and download recordings as well as other files from a web browser on devices accessible on the same WiFi network

Nov 07
2016
Version 2.0.1

* Ability to toggle grid lines on and off
* Various bug fixes (memory usage, background audio pausing, etc.)
* iOS 6.0 and above compatibility issues addressed

New features in 2.0
*Logarithmic scale - Allows you to set either linear or logarithmic frequency scales in the Spectrogram and Spectrum Analyser views
*Peak hold - Allows you to freeze and hold the peaks of the frequency envelope (three holds in three distinct colours) in Spectrum Analyser mode
*Open in - Allows audio clips to be opened in SpectrumView from other applications (e.g. Mail, Facebook, and iCloud Drive)
*Save location - Never forget where a clip was recorded
*Auto lock disabled - During playback and recordings auto lock is disabled to prevent the device from automatically locking (if enabled), for uninterrupted recording/playback

Oct 03
2016
Version 2.0

**** There appears to be a problem with the app on iOS 6 and 7. If you are running one of these version of iOS please update your iOS or do not install the update ****

Logarithmic scale - Allows you to set either linear or logarithmic frequency scales in the Spectrogram and Spectrum Analyser views
Peak hold - Allows you to freeze and hold the peaks of the frequency envelope (three holds in three distinct colours) in Spectrum Analyser mode
Open in - Allows audio clips to be opened in SpectrumView from other applications (e.g. Mail, Facebook, and iCloud Drive)
Save location - Never forget where a clip was recorded
Auto lock disabled - During playback and recordings auto lock is disabled to prevent the device from automatically locking (if enabled), for uninterrupted recording/playback

Nov 12
2014
Version 1.2

· *New* Soundcloud support. Audio files can be uploaded to and downloaded from soundcloud as well as being able to post audio to facebook.
· *New* Playback from iTunes library. Audio files can now be analysed directly form the iTunes library.
· *New* Fullscreen mode. Hide the menu at the bottom of the screen to get even more of the screen dedicated to frequency analysis.
· *New* Selectable spectrogram colour scales. You can now select one of 7 colour scales for your spectrogram.
· *New* Selectable window functions. You can now see the difference different window functions provide.
· *New* Apply gain. A maximum of 24dB gain can be applied to make hard to see details easier to see.
· *New* Open In. Audio files can be directly opened in SpectrumView. View files sent by email directly in SpectrumView.
· *New* Selectable frequency ticks. Ticks on the frequency axis can now be set to scale at fixed unit intervals.
· *New* 64-bit support!

Feb 02
2013
Version 1.1.3

Fixed startup issues on iOS5 with iPads.

Jan 28
2013
Version 1.1.2

Fixed crash on startup.

A crash has been brought to our attention which is specific to iPad devices that are NOT running iOS6 (e.g iOS5). If you have an iPad and you aren't running iOS6 we advise you against updating. A fix will be released soon.

Jan 14
2013
Version 1.1.1

Bug fixes

Dec 28
2012
Version 1.1

Previous 3 versions
 

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