Spectrogram Pro (with super User Reviews

Top reviews

No ability to load an audio file?

Buyer beware. Unless I’m missing something, there is no ability to load an audio file into this app, as quality of the demo seems to imply.

This should be a basic function at this price.

No way to zoom in?

Useless to me if i can’t zoom in or in other words restrict the frequency range that it covers

Developers have removed key functionality

I purchased this years ago because it would display the electronic resonance carrier waves emitted by powerful RF emissions, like cell phone towers. Now, over the past year or so, the developers have deliberately removed these background resonance waves from being displayed; I can only guess why.

I have emailed them twice with no response. I’m pretty sure they know what they did, and why.
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截屏功能不好用 但整体OK

打开新世界 做的很棒 谢谢开发者!

Meh

It’s pretty good. It has a fast output, it reads sounds almost immediately. But there’s no playback and isolation option. I feel like that should be a basic feature in a pro version.

Excellent rta

Excellent program, up until ios14.2. Unfortunately the app crashes apron loading on my iPhone XS Max. It’s useless now.
Don’t update to 14.2 if you want to use this app

Versatile real-time spectrogram

It is fast, with easy-to-read and adjustable scales, colors and gain. I also like the frequency cursors!

Perfect.

Exactly what I've been looking for.
You would not believe the number of apps I've scrolled through and looked at before I found this.
I wanted a simple, clear, waterfall display type of spectograph that would give a visible record of the frequency and duration of certain transient sounds. There are apps out there that have this, but the ones I found were expensive, most requiring a monthly subscription or very high one off payment. This is just what I need & at a great price. I love the frequency measurement you can access by touching the sound trace, it helps enormously if I want to tune a notch or band pass filter in order to isolate a sound.
many thanks, great app!
:)
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Great for finding frequencies

If you want to know if a high pitch squeal is coming from a device, this app is great for sniffing it out. Really fast update rate and UI response. Log vs linear is great for really dialing in higher or lower frequencies.

Works well but limited by lack of frequency scale

The app works fine and the options are good, with one major exception. Not being able to set the limits of the frequency scale renders it unusable on a small screen for some tasks.

高機能・高性能

お勧めです。

RPO

Programmers took away the 16-20kHz frequencies. Can no longer see the Easter eggs in movies.

Brings Science to singing

Bio feedback for singers. Easy to use, immediate feedback for many aspects of singing.

Dangerous to leave open

This app isn’t bad. I use it every day. But it lacks some spit-n-polish that a “pro” app should have. For example you get one - ONE - guideline. You cannot demarcate a range, you can only target one single frequency.

The most glaring problem though, is if you leave it running in the background, even in paused mode, it will ravage your battery. An iPad Pro that normally lasts weeks on a charge is completely discharged within 3 hours even though the app was in the background and the iPad put to sleep. SO BE CAREFUL!

The last update was a year ago, so this is likely as good as it gets.
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KILLER APP

I don’t know Bode from booty, but this is the most perfect frequency app for anyone, musician or not, to explore the world around them. Buy now.

Best app

Pinpointed exactly what I was I looking for in seconds

No IAA / AudioBus support

One of the nicest looking spectrograms around, unfortunately it only supports mic input. Does not work with AudioBus or AUM.

The best one..

The best spectrograph app, without a doubt.

Nice, but very limited.

Smooth, as advertised, but no zoom, or pan of time or frequency feels like it's "just for show". Ok for that. Peak marker on spectrum would be nice.

Super

Super spectromètre, bonne résolution de la FFT, affichage fluide.
J'aimerais plein de trucs en plus (zoom, pouvoir mieux paramétrer la correspondance niveau/couleur, etc) mais c'est déjà très bien.