SPECTRUMVIEW
Visualise, in real time, the frequencies that you can hear around you and even those you cannot with SpectrumView, your dynamic audio companion for iPhone, iPad, and iPod Touch.
SpectrumView provides a high-quality, real-time spectrogram and spectrum analyser display, with a configurable sample rate and frequency resolution. 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.
Here's what it can do for you:
· Refresh Spectrogram. Allows users to refresh the spectrogram so that it clears the spectrogram that had already been displayed.
· 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.
· Set Recording filename. Recording filenames are editable and the suffix can be set to have an incremental value or date/time.
· Generate snapshot of the spectrum data from playback and live recordings. [IAP]
· Access recordings and snapshots using the "Files" app. 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. [IAP]
· Logarithmic scale. Allows you to set either linear or logarithmic frequency scales in the Spectrogram and Spectrum Analyser views. [IAP]
· Peak hold. Allows you to freeze and hold the peaks of the frequency envelope (three holds in three distinct colours) in Spectrum Analyser mode. [IAP]
· 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. [IAP]
· 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.
· *Improved* Soundcloud support. Audio files can be uploaded to or downloaded from Soundcloud as well as being able to post audio to Facebook. [IAP]
· Playback from iTunes library. Files can now be analysed directly form the iTunes library.
· *NEW* Import audio from videos in your device 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.
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Screenshots
SpectrumView FAQ
Is SpectrumView free?
Yes, SpectrumView is completely free and it doesn't have any in-app purchases or subscriptions.
Is SpectrumView legit?
🤔 The SpectrumView app's quality is mixed. Some users are satisfied, while others report issues. Consider reading individual reviews for more context.
Using iOS 16.6 on an iPhoneXs, was able to transfer a sound recording from my in-phone files folder to the SpectrumView app. Initially, I could play the file and view the spectrogram. I payed $1.99 just to be able to zoom in on the spectrogram (a ridiculous price for a very basic functionality!) to focus in on specific sounds. Following my attempt to zoom, the app crashed. Now every time I attempt to view the file, the app crashes. Perhaps this is by design as you have to pay $0.99 just to access files from iTunes or SoundCloud (which I also purchased). This app seems useful if only one could use it!
in app purchases are both broken and misleading
I purchased the pinch to zoom in order to get good screenshots of zoomed in spectrograms.
Both the pinch to zoom and the pan symbols are now clickable, but the pan does not move horizontally and the pinch to zoom only moves in one dimension
Very useful app for nature sounds, noise pollution
I wish the app would load much faster, as I often miss interesting, if not important, sounds / noise.
Unbelievable
This tool is exceptional, so many uses, almost like hacking the universe @bway
Cave sounds
I just downloaded this to see if i can play sounds from prerecorded videos
Used to be good
This was my go to spectrum viewer for years. I hadn’t used it recently and when it was restored from iCloud nothing worked! Instead, every button click asked for an in app purchase. There’s also likely a real bug in that nothing appears on the screen.
I’ll be uninstalling and giving my money to another app, as I just can’t support the in-app purchase model for something that should have most basic features enabled out of the box (pinch to zoom, for example).
Why does it need my location?
Most spectrum, audio, and recording apps need access to the microphone.
But SpectrumView insists on using Location Services and won’t activate its display without it. Shady.
The best I’ve found
After trying 3 other highly-rated paid apps in addition to this one, this is clearly the best. Very configurable, no nonsense, WORKS, with easy-to-understand settings, and some features like data export that I haven’t seen in other apps. The only thing lacking is the ability to set the time scale for the spectrogram.
Eh
Why does it need my location also why micro transactions
Awesome!
Really cool and fun to use! So fascinating to see how frequencies and pitches of sounds can change over time!
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