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SpectrumView

SpectrumView

by Oxford Wave Research Ltd.

70 ratings
122 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 #11 for iPhone
iphone
ipad
🧾$0.99 - $1.99
In-App Purchase↘︎
📌Ready
Reviews summary↘︎
⭐122
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🔄6+ apps
Alternatives↘︎
❓5 answered
FAQ↘︎
📦w/o updates
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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 70 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  • 🖥️Outdated GUI not optimized for modern devices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

In-App Purchases

$1.99

Enable Log Scale

Log scale in Spectrogram & Spec. Analyser

User reviews

Most RecentHighest RatedLowest Rated

Cool!

This is very good! But I got a bug, why if I import a loud audio, the music is crashing, pls fix this.
Catlovenyanko-Catlovenyanko-

Response from developer

Thanks for the review and feedback. Could you please send an email to techsupport@oxfordwaveresearch.com and let us know more about the loud audio issue? So that we can understand it better and help you more.

Limited to 8kHz?

I distinctly remember being able to have both spectrogram and analyzer zoom up to 20kHz… that’s why I paid for it. Now it’s limited to 8kHz, and the setting no longer allows for anything higher.
muffinconsumermuffinconsumer

Response from developer

Thanks for your review. From what I understand, it seems that the audio sample rate in your SpectrumView settings was set at 16 kHz, thereby it shows only up until 8 kHz. If you go into the settings and change the audio sample rate to 48 kHz you will be able to view up until 24 kHz. Let me know if this helps please by sending an email to techsupport@oxfordwaveresearch.com. Thanks for using SpectrumView and kind regards.

An avid user

Very useful for recording and visualising speech. Thanks.
Peterpan216Peterpan216

An avid user

Very useful for recording and visualising speech.
Peterpan216Peterpan216

Asks for location permission

There is no reason for an audio spectrum viewer to need location permissions.
Nickg5678Nickg5678
See 117 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
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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.