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SpectrumView

SpectrumView

by Oxford Wave Research Ltd.

74 ratings
172 reviews
📚 Education
🔧 Utilities
Free
In-App Purchases

Details

  • Released
  • Updated
  • October 18, 2011
  • January 25, 2024

Features

Developer

Oxford Wave Research Ltd.
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SpectrumView video #1 for iPhone
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SpectrumView screenshot #6 for iPhone
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SpectrumView screenshot #9 for iPhone
SpectrumView screenshot #10 for iPhone
SpectrumView screenshot #11 for iPhone
iphone
ipad
🧾$0.99 - $1.99
In-App Purchase↘︎
📌Ready
Reviews summary↘︎
⭐172
Reviews↘︎
📝4+ tags
Tags↘︎
🔄6+ apps
Alternatives↘︎
❓5 answered
FAQ↘︎
📦w/o updates
Updates frequency↘︎
🖼️Get Icon
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About

This app provides real-time audio analysis with a dynamic spectrogram and spectrum analyzer. Visualize audible and inaudible frequencies, measure tones, get feedback on speech, identify sounds, and calibrate instruments. Access recordings and snapshots easily.

✓Real-time spectrogram and spectrum analyzer
✓Configurable sample rate and frequency resolution
✓Record, pause, and playback audio files
✓Generate snapshots of spectrum data
✓Web file transfer
✓Tap data cursor for precise frequency and level
✓Musical notes or frequency display on tap
Show original description

What users say

Summarized from real user reviews of SpectrumView. Based on 74 reviews and a 3.1/5 average, it highlights the 8 positives and 8 negatives reviewers mention most about this Education app.

Positive things

  • 👍Accurate and reliable spectrogram visualization
  • 🎯Highly configurable FFT and sampling settings
  • 🎨Beautiful and intuitive user interface
  • 📊Excellent for analyzing speech, music, and animal sounds
  • ⚙️Useful for professional audio calibration and research
  • 🆓Powerful functionality available in free version
  • 📱Works well on iPad and iPhone devices
  • 🔧Data export capabilities for external use

Negative things

  • 💰Aggressive in-app purchase model for basic features
  • 🔐Unexplained location permission requests
  • 📉Linear frequency scale wastes screen space
  • ⏱️Slow app startup times
  • 🎯Limited frequency range (8kHz cap in recent versions)
  • 🖥️Outdated GUI not optimized for modern devices
  • 📝Unclear pricing and feature structure
  • ⚠️Frequent crashes after updates
See all reviews

What's New in SpectrumView

2.4.2

January 25, 2024

SpectrumView 2.4.2 (2.4.35) Update: - Import audio from videos in your device library - Improved SoundCloud compatibility - Improved sharing with other apps like Whatsapp - Various bug fixes

More
7

Subscriptions & In-App Purchases

$1.99

Enable Log Scale

Log scale in Spectrogram & Spec. Analyser

User reviews

Most RecentHighest RatedLowest Rated

Doesn’t go high enough.

The spectrum analyzer only goes up to 8k and is therefore not useful to me. I want to see if my speakers are rolling off top end.
verbosverbos

Not adjustable?

I couldn’t find settings for dynamic range or scrolling rate.
Stephen MalinowskiStephen Malinowski

Sehr gut

Die App ist super! Hat mir sogar bei einer beweiserhebung geholfen wegen stalkings:-)
Ein Verbesserungsvorschlag habe ich dennoch es wäre Mega geil wenn man die Tonträger filtern könnte ✊🏽😎❤️
MöchtegeheimbleibenMöchtegeheimbleiben

Response from developer

Ihr Verbesserungsvorschlag ist ein hervorragender Punkt. Da wir die App kontinuierlich weiterentwickeln, würden wir gerne mehr über Ihren Anwendungsfall erfahren und darüber, wie genau Sie die Filterfunktion benötigen würden. Bitte senden Sie uns eine kurze E-Mail an techsupport@oxfordwaveresearch.com. Unser Entwicklungsteam schaut sich Ihr Feedback gerne näher an, um zu sehen, wie wir die App in zukünftigen Updates für Sie noch besser machen können! Herzliche Grüße,

Librarの順番がバラバラになる

SpectrumView Libraryのソート順がおかしい．
順番に並ばない．

基本的な機能は大変優れている
rrrr0rrrr0

Response from developer

Thanks for the useful feedback and the issue you are facing with the file order in the library. Could you please send an email with the details of the issue to techsupport@oxfordwaveresearch.com, so that we can properly investigate and help you better?

Great Spectrogram

Would it be possible to let me know which library is used to compute the live spectrogram (for UI rendering) ? Are you computing a ratio of 1/t of the input signal in a buffer to perform such performance ? Regards.
gisbabfoxhzgisbabfoxhz

Response from developer

Thank you for your fantastic question! It is always a pleasure to hear from users who have an interest in the inner workings of our app. Please kindly send your inquiry to techsupport@oxfordwaveresearch.com so that we can reply better. We look forward to hearing from you!

See 167 more reviews

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User experience

🐞

Reported Bugs

11 issues

App crashes on startup after updates

Bug

Crashes when attempting to zoom on spectrograms

Bug

Crashes when playing files from iTunes library

Bug

Microphone hijacking error messages

Bug

Pinch-to-zoom and pan features not functioning properly

Bug

App freezes when backgrounded

Bug

Spectrogram resets when rotating device orientation

Bug

Audio plays through speaker instead of headphones

Bug

Blank screen with no display output

Bug

Incompatibility with older iOS versions

Bug

Requires in-app purchase prompts for all features after iCloud restore

Bug
✨

Requested Features

13 requests

Logarithmic frequency scale for audio analysis

Feature

Adjustable time scale/window for spectrograms

Feature

Ability to analyze audio from music library/iTunes

Feature

Longer-term averaging for spectrum analyzer

Feature

A-weighting frequency selection

Feature

Batch delete option for recordings

Feature

Real-time audio input from playing songs

Feature

Metadata storage (timestamp, location) in WAV files

Feature

SPL meter functionality

Feature

3D display option

Feature

Adjustable color range for spectrogram

Feature

Auto-readout of highest amplitude frequency

Feature

Higher frequency range support (above 20kHz)

Feature

FAQ

What does SpectrumView do?

SpectrumView visualizes audio frequencies in real-time using a spectrogram and spectrum analyzer. It allows users to see audible and inaudible frequencies, measure tones, analyze speech, identify sounds, and calibrate instruments.

What are the key features of SpectrumView?

Key features include real-time spectrogram and spectrum analyzer views, configurable sample rates and frequency resolution, audio recording and playback, snapshot generation, web file transfer, and a tap data cursor for precise measurements.

How much does SpectrumView cost?

The app is free to download and use, but offers in-app purchases for advanced features such as generating snapshots, web file transfer, logarithmic scale, peak hold, and frequency pinch-to-zoom.

What devices is SpectrumView compatible with?

SpectrumView is designed for iPhone, iPad, and iPod Touch devices running iOS 11 or later, allowing easy access to recordings and snapshots via the 'Files' app.

What are common use cases for SpectrumView?

Common use cases include measuring the highest tones a person can sing, obtaining visual feedback of speech frequencies, identifying unknown or annoying sounds, calibrating musical instruments, and performing general acoustic analysis.