Leave a Review Audio Spectrum Analyzer
Very nice spectrum analyzer
Unlike many other spectrum apps, this one allows some configuration. You can select the window type, peak hold average, and number of spectral lines, among other things. You can't select a maximum frequency other than the highest possible (I guess because this would require a down sampler and digital filter), but since it lets you pick a very high number of spectral lines, you can window the results to get what you need and still have reasonable resolution.
We use it for quick and dirty measurements when we don't want to set up the high dollar gear. For example, we recently used it to determine blade natural frequencies (or at least the first one since it radiated significant sound) for an axial compressor to select which should be adjusted to meet the spec. This saved the project many hundreds of dollars in setup time for each blade. We used our high tech gear to get the final data, but this app was great for the initial cuts.
I'd give it five stars, but I'm saving the extra star for when they update to provide a linear vertical axis and perhaps more control over FFT parameters.Show lesssmplee
My review
Great app that works as advertised. Successfully EQed my home stereo system which is set up in a problematic room with a high ceiling and many reflective surfaces. Running on an iPhone 6 plus.Da Funky Bassman
Great for live work
This is a great little app for the money. I use it on live p.a. work for 'ringing out' the f.o.h. system and also the monitors.SMD1UK
Useful as engineering tool
I'm a practicing electrical engineer and I wish I'd had this app when I took the DSP class in college. Straightforward control of FFT parameters makes it fun as an exploration tool. I'm using it to track down acoustic noise on voltage regulators.Vincetronics
Nice app
Like the automatic markers and configurable averaging. It would be better still if had a waterfall view.Jesse_ba
Great app!
This is a great app! I use it all the time .... Especially to find troublesome hums, etc.Euzkadi71
Works
Works fine on my iPhone 5S. Great, simple little monitoring app. I bought it for the markers, which helps me kill feedback.Wingdinger2
Oops....white screen only....does not work on my iPad 1....ver.4.3.1...hmmmm...
Oops....white screen only....does not work on my iPad 1....ver.4.3.1...hmmmm....I hope it works on the iPhone 4!Enricochet7
Mr
This app is very useful for finding frequencies. Pinch to zoom in and scroll to move to the desired frequency band. Well worth the money.soundman7777
Spectrum a day saver
I use Spectrum regularly in my work with venue audio. It's great for Eq-ing the house and testing speakers and selecting mics. Easy to use with great results.Spencer 54
