Audio Analyzer app for iPhone and iPad
Audio Analyzer is a real-time spectrum, spectrogram, oscilloscope and octave RTA analyzer. It gives you a visual representation of an acoustic signal. It can be used to analyze the sounds of musical instruments, to identify spoken words phonetically, to measure the frequency response of audio equipment, or to picture the calls of different animals. You can also check “The Singer’s Formant”, the most important measure for every opera singer.
Features
- Spectrogram analyzer (color, black and white)
- Spectrum analyzer
- Oscilloscope (full FFT window size)
- Octave RTA analyzer: bands - full, 1/3, 1/6, 1/12 (RMS values)
- SPL Meter (dBFS)
- Recording trigger (triggered by frequencies in the specified frequency band)
- Fast real-time response
- Sampling rates: 44.1kHz, 48kHz, 96kHz*
- Fast Fourier Transform (FFT)
- Window sizes: 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536
- Variable frequency resolution of the spectrogram
- Variable between FFT computations time interval (time resolution)
- Max/min Octave RTA values
- Zoom and pan all charts
- Measure values in all charts
- Play back analysis (just tap on the spectrogram and play)
- PIP (picture-in-picture), allows the simultaneous analysis on the spectrogram chart and Second chart: Octave RTA, Spectrum or Oscilloscope
- Audio input can be supplied via the built-in microphone, and an external microphone* (via the earphone jack, via the USB camera adapter, or through the iPhone/iPad dock connector – Core Audio compliant devices). External devices are shown in the application only when connected (e.g. external mic connected via the earphone jack)
- Sharing charts and audio recordings (through mail, social networks, clipboard)
- Exporting to the iOS Document Browser (supports iCloud): audio recordings (wav) and image charts (png)
- Importing audio files from another application or from the iOS Document Browser (supports iCloud)
- Many formats supported for audio file import
- Automatic conversion from other sampling rates for imported files
- Frequency scale: linear and logarithmic
- Amplitude scale: linear and logarithmic SPL/RMS (dBFS)
- SPL meter weighting: dBZ - linear
Make sure you use the latest iOS update.
*For 96kHz analysis use an external microphone with such capabilities through a USB camera adapter or through the iPhone/iPad dock connector (internal mic or external mic connected via the earphone jack can only be used for 44.1kHz or 48kHz analysis) You can also import files recorded on an external device.
Pros and cons of Audio Analyzer app for iPhone and iPad
Audio Analyzer app good for
This analyzer app has a very intuitive and userfriendly GUI.
Everything is quickly accessable, with a maximum of 3 "clicks".
App runs smoothly without any hickups (iphone 4s ios 7.0.4).
Only wishes at this point, history for the spectrogramview and export as textfile.
Both thumbs up.
I love the Analyzer!
there are a few analyzers out there, some very prizey and at different levels of complexity.
this one here has a great balance between features and ease of use.
the spectrogram is truly beautiful, with a great resolution on a retina screen. the options are sufficient and fast to reach. the other analyzers are perfect too, with all options one would need in most realworld situations.
at this pricepoint this is a no brainer!
i can only recommend this app!
...on import.
Still great - keep up the good work!
PS: Video export would be awesome!
(English Follows) Très bonne application pour la phonétique. Je suis débutant pour la langue thaïe, cette langue à 5 tonalités. Pour un Occidental, cela est très difficile de savoir si notre prononciation est juste, car nos langues n’ont pas cette spécificité (ou si peu). Avec cette application, je peux enfin m’exercer seul et voir immédiatement si je suis sur la bonne tonalité. Je ne suis pas un ingénieur de son et je ne savais pas trop comment produire le spectrogramme parfait pour mes cours. J’ai demandé au concepteur de l’application s’il pouvait me donner le réglage pour ce type d’exercice. Il a répondu avec empressement et tout est parfait. (Le réglage est à la fin pour ceux qui sont intéressés.)
Very good phonetic app. I’m a Thai language beginner learner, this language has 5 tones. For an Occidental as me, it’s very difficult to know if the tone I produce is right, because our languages have not this specificity. With this app, I can now practice alone and immediately see if I produce the good tonality. I’m not a sound engineer and I didn’t know how to adjust the setting. I asked to the app programmer if he can gave me the setting for this exercise type. He responded quickly and all it’s now perfect. (The setting follows if you’re interested).
There are I think the best settings in your case:
Window size: 4096
Window type: Hanning
Sample rate: 44.1kHz
FFT calculations interval 1.5ms
Frequency display size: 2048
Amplitude scale: decibels
Frequency scale: logarithmic -> when you want imitate voice flow
Frequency scale: linear -> when you want imitate vowels formants in your sound
When you are using linear frequency scale you have to zoom your spectrogram to region 0-5kHz (using pinch gesture)
Best regards,
Pawel Krzywdzinski
Some bad moments
App crashes when trying to import files from voice memos on phone..please fix
This is a nice app that delivers an easy-to-read spectrograph. In future releases, it would be nice to see:
1. External mic capabilities - the mic in the phone isnt that great, can I plug in my own via headphone jack?
2. Choice of scale for dB meter on the side. Im not sure what scale is currently used, but I take my readings in dBA/dBC.
Im no expert, but it works very well for me. So far Ive mostly used it for real-time spectrograms. Very nice Audio Analyzer.
This app looks really good if you reverse the colors on your phone. Its seems like a lot of money for an app that doesnt seem to do any more than the cheaper ones that do the same thing. I mean unless I can edit the junk noise out of my recordings manually I dont see the point for the extra money.
Purchased this app because its the only one I can find that advertises the ability to open files from other sources (saved via apples voice memos app on an iPhone 6) but when I attempt to open the file, the app just crashes.
Thanks for this nifty little program. I used it to show the audio spectrum of an old Hammond organ with a stuck tone. Using Audio Analyzer in oscilloscope spectrum mode, with my iPhone on the organ bench, I looked for peaks, and one of them was right where the noise was centered. It told me the frequency when I tapped on the bar, and that helped me know where to look further to troubleshoot. There are other methods that I could have used, but this utility made it quick and simple.
