Spectrum Pad

If you are iPhone and iPad owner,you now can download Spectrum Pad for $2.99 from Apple Store. The application is supporting English language. It weighs in at only 10MB to download. It is highly advisable to have the latest app version installed so that you don`t miss out on the fresh new features and improvements. The current app version 1.0.0 has been released on 2014-11-20. For ensuring consistency with the device you should take into account the following app compatibility information: Compatible with iPad. Requires iPhone OS 3.2 or later.
More Info: Find more info about Spectrum Pad in Black Cat Systems`s Official Website : http://www.blackcatsystems.com/ipad/iPad_Spectrum_Analyzer.html

Very low update rate and limiyed interface definitely not worth paying for     Not good MagicalTux

Recommend this for novices and pros Great for setting up a sound room or booth Good Job                     Great for mobile frequency checking Dan Phx

Does exactly what it says on the box Sometimes buggy at least on iOS9 Zooming sometimes doesn t work Resuming the app after switching to something else makes it not display frequency data Not perfect but more than acceptable                 Functional Phonedrivefan

Very poor not what I expected Tried to get a refund No luck     Review Uoweme1209

Cannot pinch to zoom in frequency domain as it states in FAQ Needed this app to identify specific higher frequencies but the ones I want get overshadowed by low frequency noise and I can t zoom those out of window Labeling the peaks by touching them would be nice rather than app only labeling overall maximums         Key feature broken Chris DiCarlo

Slow and inaccurate Waste of 3     Needs to be updated Reggie Tidwell

Great App almost exactly what i was looking for Great value It works smoothly and easily Minuses Yes I wish it went to 40 kHz While 20 covers the audio spectrum for most people a few people and most dogs have hearing above that range The instructions for selecting the filtering window need to be expanded Other than those two minor whines it is a great app                     Great String123456789

This terrible app has a response time slower than the free spectrum analyzers available out there Do not waste your money     Don t buy chadstonemusic

Either I can t figure it out most likely or you can t zoom on the Y axis I was trying to determine the frequency of the audible vibration my car was producing The peak amplitudes just blend right in with the noise when it s zoomed all the way out Also sometimes the actual graph disappears It will still show the frequency of the peaks but the rest of the screen is black             Can t zoom in on amplitudes Jasonindahouse

iPhone 6s This is a nice app that works but the sample rate is quite slow or maybe the the screen update is slow There is a peak hold feature that is quite unnecessary as it takes a large fraction of a second for the display to register a change The display then persists for some time before decaying             works but slowly Phil Boyd Studge

As spectrum analyses go this is pretty good for an iPad                     Good intuitive competant product Labmanager

This is a very affordable app that lets you do incredibly useful things as a sound engineer I run sound for our community theater and play in a country rock cover band I ve used this in both settings to easily located and remove problem frequencies with a GEQ Lots of options and easy to use Life saver                     Perfect Worfman22

This app offers nothing that you could not get from a free spectrum analyzer app In fact you will find it more convenient to work with many of the free apps This app has absolutely no features that could justify paying for it All it does is doing a simple FFT I want my money back however it is too late unfortunately     Absolute Waste of Money AbuJax

Good More detailed grid more better             Simple inuro

I monitor a bluegrass band with this app Nice to know room characteristics for PA low high freq settings                     Spectrum at your finger tips OldTek

When I want to the frequency of a background tone on the radio this works great My wife bought some Tibet bowls I wanted to know the resonant frequency for each bowl This app worked great Lots of applications Now only if it could fix the ringing in my ears                     I like it Ed the Ed

Nice analyzer and responds well However some features would be nice i would like to see the ability to freeze a spectrum and possibly save it or have it emailed so it could be studied Also it would be nice to isolate portions of the spectrum to analyze it             Some added features would be nice tiggerbob

Exactly what I was looking for Just right                     Goldilocks Boxy neck

Last one you ll have to buy Make an apple watch port please                     Awesome Pat the bassist

I bought this app because I wanted to identify a mysterious high pitched tone that was audible in my house It worked great The tone was clearly visible as a peak around 6400 Hz and then I was able to confirm using a tone generator I m just a casual user but the app presents a feature set that would appear to satisfy more serious users too It also has a very no nonsense interface which is what I look for in an app                     Simple to use but full featured practex

This works really well for audio analysis                     Excellent app for audio analysis fagins58

Very east to use It allows stretching shrinking the frequency axis for the linear scale only It would be nice to have a way to freeze the spectrum to make some quantitative comparisons Then a screen snapshot could preserve the results Would also like to know just what kind of filtering is being used                 Nice simple laconic2

This is a great app for showing the basics of FFT to physics students It would be a nice touch to add the ability to manually place markers but with care the auto peaking markers work well enough Not bad for a few measles bucks                     Great little SpecAn Electronfairy

Works as expected                 Basic Analyzer Mike Gauder

Use it to check venue audio dynamics during sound checks                     Very useful Kevin43010

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                 Very nice spectrum analyzer smplee

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                 My review Da Funky Bassman

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                     Useful as engineering tool Vincetronics

This is a great app I use it all the time Especially to find troublesome hums etc                     Great app Euzkadi71

Works fine on my iPhone 5S Great simple little monitoring app I bought it for the markers which helps me kill feedback                     Works Wingdinger2

Oops white screen only does not work on my iPad 1 ver 4 3 1 hmmmm I hope it works on the iPhone 4     Oops white screen only does not work on my iPad 1 ver 4 3 1 hmmmm Enricochet7

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                     Spectrum a day saver Spencer 54

I am an audio engineer and thought this app may have some semi useful purpose However it is total junk There is zero accuracy to this app Do not waste your money     Worthless Charles Ash...

Being an ex submarine sonar man I appreciate the application Seems to function as designed I d like to see a waterfall display and a sliding cursor zoom window which would make the app Awesome Thanks and keep up the great work Peter                 Been there done that good app peterle188