• SPL Spectrum Analyzer 1
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SPL Spectrum Analyzer

SPL Spectrum Analyzer measures and analyses sound pressure level (amplitude in decibels) and sound frequency spectrum in real time (RTA) using FFT.
It is very easy to use and offers a lot of useful features: high RTA refreshing rate and frequency resolution, adjustable sound pressure level amplitude scale (up to 150 decibels), RTA peak hold function, flat reference line, local peaks...

RTA measurement can be recorded on 3 separate channels. User can later compare SPL (dB) and frequency response charts between the channels.

It also includes a signal (tone) generator, which helps us measuring the frequency response of a sound system.

Input/output can be adjusted to Internal, AUX or Bluetooth. However, all I/O options and combinations do not work on all devices.

Microphone can be accurately calibrated for each frequency band separately.

Category : Music & Audio

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Reviews (30)

Jam. M. Feb 13, 2022     

If you have key clicks enabled on your phone, then the peak reads it and becomes unusable. The frequency scale is very odd, not 1/2 octave. It would be nicer if it was standard scaling with choices, 1/3 would be great. File saving or ability to share would be very useful. Choices of response time would be great. The people that want a color change don't know what they're doing. Ignore them, work on the pro aspects. Good APP if you can calibrate it & understand what you're doing.

eer. p. Mar 19, 2022     

Great app! Most analyzers are not reliable nor an accurate representation of sound. I tested this apps accuracy using several pro studio equipment and to my shock and amazement the app is as accurate as you can get on a mobile device.

Avo. T. M. Feb 16, 2022     

Absolutely Perfect. Double Tested! I use this app to create ambient music and sounds that are suitable for producing lucid dreams, astral projection, hypnosis, and for elevating one's consciousness for soul ascension. Works perfectly! Shut down your mind. It's better that way, for you individually, and for our entire civilization. Only when you shut down your mind with practice can you achieve true soul ascension. Guard it with your life.

ton. l. Mar 3, 2022     

5 stars based on simplicity, ease of use and the channel comparison function. Perfect for quick A/B test before and after room treatments. And it doesn't give me a headache.πŸ‘

Ric. D. Apr 6, 2022     

Easy to use and I love the way the information is displayed. I even bought a microphone for my phone, but even without it it responds fast and accurately. I'm going to pay the person who wrote the program because he deserves to be compensated for his time and effort.

Rob. S. Sep 7, 2021     

One of 5he very few sound analysers that might actually have some real usefull testing . I noticed immediately that not all levels were showing on the screen constantly, which uschiw it should look when you're hearing someone talking on a tv show. Each octive moved accordingly quickly and singularly when that tone was picked up, not a range area around that frequency as 90% of these will do. They can't move exact band levels, the curve is changed to make you think it's reflecting that change.

das. Apr 30, 2022     

This is a good app. However it would be nice if the app gave us a choice between display in portrait mode or landscape.

Chr. K. May 1, 2022     

All good - Only one wish to change fhe bar(s) color combination. Other than that, veru accurate.

Mar. G. Mar 25, 2022     

Surprisingly efficient app. Wanted to find spurious noise in our house. Located a faulty sensor.

Ger. T. L. May 12, 2022     

Hertz @ db? Perfect. Just what I was looking for in a meter. Simple, accurate.

HK. F. Dec 27, 2021     

I can see myself using this to see the top 3 peaks. Mic calibration is manual (no file support). Layout is clean and usable, but spectrum chart updates too quickly. No option to adjust frequency scale.

mik. b. Apr 8, 2022     

This is good but i like the older version from year 2014πŸ€©πŸ‘ simple but elegant old version is so nice than this one.

Nor. L. Oct 12, 2019     

Great spectrum analyzer! Visuals are very easy to read. Aside from the individual sound frequencies, it also shows the overall sound pressure. Response time is also very good.

Ric. C. Dec 5, 2020     

Seems to work well for audio. I'm not certain about the accuracy due to the variables involved. But I will continue to tinker with it and compare it to some other professional spectrum analysis software and hardware.

Mik. M. May 25, 2019     

very nice app for free. thanks for your software. wish you would add a frequency sweep option for checking your speakers peaks and lows to make sure their speakers are performing to specs. that would make your software awesome. thanks

Phi. T. Jun 23, 2021     

I have been using it (successfully) to trace the sources of the triggers for my tinnitus! Great app! Many thanks. Turns out that despite the fact my hearing cuts out at about 12khz even moderate sustained noise @ 18khz triggers my tinnitus (followed later by a migraine)!

Sam. A. Mar 23, 2022     

Need more octives, please make upto 120 bands, also add generating report, add slow, fast, and weighting.

ste. b. Mar 25, 2022     

it's pretty good few bells and whistles to play with very cool

Zad. N. Jun 22, 2019     

So far so good. Seems to give adequate analysis of frequencies. Perhaps more testing and rating at a later time would be ideal. My main reason for downloading this app is to see what primary frequencies the 40 series Delta Force Flowmaster mufflers with 2.5" inlet/outlet generate on my Chevy 350. The low rpm drone that they produce is notably less than that of the standard 40 series Flowmaster, as the case is just 3" thick, instead of 4".

But. C. Sep 10, 2019     

I notice this app has ridiculous permission requirements. Why do you need all the wireless network control? Another unsettling observation is after using the tone generator function and closing the app my phones speaker is emitting a very high db tone around 20,000 hz. I covered and uncovered my speaker with a finger and it was obviously coming from my phone. Why does the frequency scale end near 20khz? Spectroid goes up to 40khz. Please explain

Kir. M. Sep 1, 2020     

The spectrum is really coarse and noisy. You can't even see harmonics of a guitar string sound. There are much better apps out there

Pp. P. Dec 24, 2021     

Dont know how to use gnna have to research unless theres some ki d of other app 5ht has a user friendly interface that has a setup wizard maybe but of course if so.eone has an app like tht it would be smart and buisness with me.

Dia. M. Jun 19, 2020     

This app works really well, wanted to test my new home built Disco system, with built in Speaker and sub, it showed me how to adjust the amps and eq to get best full range, very nice, recommend this app

Aus. R. Oct 10, 2019     

It does what I want. I was looking for a simple app that could identify different audio frequencies for troubleshooting reasons and this does that!

Dan. E. May 23, 2022     

Nice simple and helpful app.

awe. v. Nov 6, 2020     

Pacific great app I wanted to measure the decibels of sound right near my grandmother's house because she lives literally 23 away from the freeway and the decibels are 83% and higher which is not good you think the apartments would build some kind of sound barrier but they haven't thank you for this app and I'll have to investigate more works perfectly and your family. Church I needed

Yo. S. Jul 27, 2020     

Recognized A4 coming from a digital piano as 430Hz. Also was unstable and had large margins of error on other frequencies as well.

X. m. 1. Aug 5, 2021     

Sensitive and precise πŸ“ but just a bit too scientific πŸ”¬ and complicated πŸŽ“ for me. (A smarter person than myself may find it useful...πŸ˜‹)

Ric. E. Aug 23, 2020     

Works better than others I've tried (personal preference). I like the RTA bar graph for quick information about your sound signal.

Sme. L. Oct 24, 2021     

Actually has a "RTA signal" unlike others. I've downloaded like every single "Said to be/& or an assumption of what is to be a ➑ ("Suppposed Real Time displaying πŸ”Šfrequency/wave form display spectrum Analyzer's. That yes, all weren100% downloaded off of Google PlayStore. There's roughly 12-13 RTA Apps im aware of. Always a chance i unkowingly swiped passed someπŸ™„πŸ€”πŸ˜£πŸ€·Anywho, now lemme tell ya what. 90% "R"βž‘πŸ’―πŸ—‘πŸš½πŸ’© always asking 4πŸ’°πŸ€‘πŸ€’ to buy their "πŸ’°β†©pro-application!πŸ€¦πŸ™„ that doesn't work