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RTA

RTA

Andrew Smith
Released: 2008-12-14
© Andrew Smith
RTA - QR Code
$4.990%
Version 9.2
4+
Download on the App Store
$4.990%
Version 9.2
4+
Download on the App Store
Released: 2008-12-14
© Andrew Smith
+24
#59 in Top Paid Apps > Music

iPhone Screenshots

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iPad Screenshots

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Description

A Real Time Analyzer for the iPhone, iPad and iPod Touch. Test your speakers, tune your room, do acoustical analysis work or just have a better understanding of audio frequencies. RTA is a professional-grade acoustical analysis tool. All filters meet or exceed ANSI and IEC Class 1 specifications.
Includes Octave and 1/3 Octave modes, with selectable decay times, as well as Peak Hold and true linear Average mode.
*** iOS Microphones
We have analyzied every iOS device, including all of the iPads, all iPhones, and iPod touches, and have created microphone compensation files that are applied automatically. You can trust the results you are getting, often within just a few dB of a far more expensive analyzer. Calibration is updated regularly, automatically, from our cloud-based calibration database.
Upgrade to our iTestMic or iAudioInterface2 to bring your system up to full professional specs.
*** Save and Recall Graphs
You can save and recall graphs, marked with the GPS location, date & time, and your comment, as well as store the image to your photo roll.
Export the data as an XLS formatted file to your computer for inclusion in reports or further analysis.
*** Max and Min Bars
You can also turn on resettable Max/Min bars (see image #4) to capture peaks. Double-tap to reset the bars.
*** Specifications and Devices
The internal iPhone mic has a noise floor near 30 dB, and if your are running iOS 6, clips around 120 dB.
*** Touch GUI
Fully interactive touch GUI features includes scroll up/down, pinch to zoom or compress the vertical dB scale, or swipe horizontally to get a cursor that reads out the exact dB level and frequency across the screen. To make the cursor disappear, swipe it off the graph to the left.
The landscape-mode display flips 180 degrees so that you can face the internal mic in either direction.
*** Overlay Curves
Also included are optional noise curve overlays, in NCB, RC, PNC, NC, X-Curve and NR mode. See picture #2 for an example. Use this feature to get a quick reading on the noise levels in a room. Also includes the cinema large-room X-curve overlay.
*** Calibration
RTA can be fully calibrated, whether you are using it with the internal iOS microphone, or one of our professional test & measurement mic solutions. And, if you are using iTestMic, the mic calibration is transmitted directly to the app, so you are always calibrated.
*** RTA or FFT?
If you are wondering if you should download this app or our FFT app, check out our website, we have a page devoted to this topic.
See our other acoustics and audio apps, including AudioTools.

What's New in Version 9.2

-Updated for latest iOS devices
-Bug fixes and stability improvements

Seller

Name

Andrew Smith

URL

http://www.studiosixdigital.com/audiotools/rta/

Information

Developer

Categories

Version

9.2

Size

23.7 MB

Game Center

No

VPP Device Licensing

Yes

Rating

Rated: 4+

Compatibility

iOS 9.0 or later

Devices

iPad (4th Generation) (Wi-Fi), iPad mini 3 (Cellular), iPad Air, iPhone 7, iPhone 8, iPhone 6s, iPhone XS, iPhone XS Max, iPhone SE, iPhone X, iPhone 6s Plus, iPad Pro (11-inch), iPad (6th generation) Wi-Fi, iPad Pro (11-inch) Wi-Fi + Cellular, iPad Pro 12.9-inch (2nd generation), iPad Pro 12.9-inch (3rd generation) Wi-Fi + Cellular, iPad (5th Generation) Wi-Fi, iPhone 4S, iPad (4th Generation) (4G), iPhone 5c, iPad (7th generation) Wi-Fi, iPad mini Retina, iPad Air (Cellular), iPad Air (3rd generation) Wi-Fi + Cellular, iPhone 6, iPad mini 4, iPad Air 2, iPad Air (3rd generation), iPhone 5s, iPad Pro (10.5-inch), iPhone XR, iPad Pro 12.9-inch (3rd generation), iPhone 7 Plus, iPhone 6 Plus, iPhone 8 Plus, iPad Air 2 (Cellular), iPad mini 3, iPad mini Retina (Cellular), iPad mini 4 (Cellular), iPad Pro, iPad Pro 12.9-inch (2nd generation) Wi-Fi + Cellular, iPad mini (5th Generation) Wi-Fi + Cellular, iPad Pro (10.5-inch) Wi-Fi + Cellular, iPhone 11 Pro Max, iPod touch (7th generation), iPhone 5, iPad (7th generation) Wi-Fi + Cellular, iPad mini (5th Generation), iPad Pro (9.7-inch) (Cellular), iPod touch (6th Generation), iPad Pro (Cellular), iPad (6th generation) Wi-Fi + Cellular, iPad Pro (9.7-inch), iPhone 11 Pro, iPhone 11, iPad (3rd Generation) (Wi-Fi), iPad (5th Generation) Wi-Fi + Cellular, iPod touch SeventhGen

Languages

English, Chinese, French, German, Japanese, Polish, Swedish

App Store: Customer Ratings

Ratings & Reviews

4.5 of 5 (2 Ratings)

App Store: Customer Reviews

2018-08-27

JZ

Just saved my bacon. Have a Trane Centravac chiller making a whine noise. This showed it is an 8k whine at the compressor.
Now I have some data to go back to Trane with.
I csn use this im my small audio room in my house now for some frequency readings.
Its worth the dough.
Jake Brew
Version 9.0
2017-10-03

Fixed

Wow! Fixed.
It's nice to have such a good tool back working in a good way.
This really is a valuable tool for visualizing as you run live sound.
Thanks for fixing it.
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Same as before. This app continues to run after you exit it and drains your battery. I cannot understand why, update after update, the developer continues to cling to this "feature". If you actually think that there is some use for this "feature", make it an option. I shouldn't have to stop the app before I exit it; this is not the iPhone paradigm and, as a result, users are likely to forget to do it. You hit home to exit the app, pocket your phone, and a few hours later discover this app still running and your battery low.
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Same problem. This app continues to run after you exit the app and it drains your battery.
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Same problem.
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Yet another update that does not address the biggest -- well, only -- flaw in this app: it still continues to run after you exit it which drains your battery.
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I wish the author would make the battery-draining background mode optional.
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The author continues to tweak many aspects of this app, but it still keeps running after you exit it which drains your battery.
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Same thing again. The author obviously likes to drain your battery.
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New do-dadhs, but it still drains your battery if you're not watching.
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Still has no way to turn off -- much less to default off -- the battery-draining background operation. Despite many updates, this app hasn't had a favorable review since 2013.
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Another update and the battery-draining background operation continues. I really can't understand why this can't be made optional with the default being off.
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With each new update, I hope that they will finally remove (or at least make optional) the battery-draining background mode. But, this latest update is unchanged in this respect.
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New iPhone 6. Latest everything. Still drains the battery by continuing to run after you exit the ap.
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Well, they did it again. Another update and the battery burn continues.
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What can I say? The battery drain continues in yet another update. No wonder this is no longer the most popular RTA in the Apple store. When will the author fix this?
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Another update and the drain continues.
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Another update retains the battery-draining background operating feature. When you exit this app, it keeps running and sucking your battery. You have to manually kill it. This single "feature" just ruins this otherwise excellent app for me.
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Yet Another update and it is clear that the developer feels that this battery-draining background feature is somehow desirable.
I have given up. Obviously, they do not read these comments because we have yet another update and the background battery drain remains. They obviously like this "feature."
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I've been a huge fan of this app for years. I consider it essential for live- sound work.
But, recently, they added this "background" mode in which the app keeps running even when you exit it. To stop it, you have to manually kill it... a big and inconvenient extra step. And if you forget to kill it, it will run down your battery. When you're mixing a show, you don't want this extra step.
This silly "feature" is a disaster. I have complained and complained and yet this "feature" persists.
There are other Real Time Analyzer apps. If you are looking for one, despite how good this app is, I suggest you look elsewhere because of this one overwhelming problem.
Gollnick
Version 8.9
2015-12-30

Great app!

Have been using it to tune rooms for small concerts, as a pink noise source and analyzer. I keep it running during the show, and it really helps isolate feedback. Haven't had the battery issue that the other reviewer had, but I just make sure to exit the app when not using it.
Great work!
Celloverp
Version 7.8
2014-05-19

IPad, not so much

Does not view properly on an iPad. Issues. Works great on my iPhone', but look for another solution on iPad.
Forester1962
Version 7.2
2013-10-07

Doesn't work with iOS 7

When will this work again? It was great with iOS 6 and before. All it does now is freeze when it is opened.
jdub00769
Version 6.8
2013-09-26

Great, easy app!

Title says it all - works well, easy to use and self-explanatory. This should be on every sound engineer's phone!
Treeman5
Version 6.8
2013-06-21

FOH Engineer

Great tool for the money. I use this app for quick references during every live show.
Audio Professional
Version 6.5
2012-09-23

Useful, but needs updates/configurability

Great app! I wish it was updated for newer products(iPad models, iPhone 5, etc.)
wigum
Version 5.1
2010-12-06

Useful, but....

A few months ago this app was updated to compensate for the iPhone's microphone not being able to register the 20Hz - 35Hz range. Since that update (including this last update) the app has way over compensated in that area. I would like to use this app and trust it, but as of now, it's too hard to tell whats accurate when there is constantly a curve upward from 35Hz to 20Hz. It's a better app with the mic's natural roll off. Please fix the compensation or return it to how it used to be. PLEASE!
Haa tech
2010-10-08

Meh...

I liked it more before the last update. Now 30% of the screen is being used for unnecessary toolbars and buttons. The iPhone display isn't exactly large to begin with. Looking into other apps now unfortunately...
Smartest1ever
2010-07-09

rta

nice rta...be nicer if there was a pink noise out
danbabcock
2010-06-28

car audio absolute need

this app combined with the switcheasy 'thumbtack' microphone makes a very, very accurate method of tuning in your car stereo.
when results are compared to an expensive audiocontrol RTA, the margin of diff. is negligible.
i highly recommend this app.
btw, the microphone sold by this company is also excellent, and an even better match then the above mentioned mic.
smaugthewyrm
2010-06-25

Crashes

The app ran fine after OS4 upgrade, but started crashing after last update of RTA was installed.
LNDBA
2010-06-24

Problems with iOs4?

I've been having crashes ever since I updated my os.
Drewparkersc
2009-08-21

Great deal for ten dollars!

Very handy tool with freq selection. Very handy to spot feedback freqencies for live sound performances.
phatstuff
2009-08-14

Excelent professional software

I am a Latin Grammy winner music producer, using the RTA to tune every room where I mix, and I am getting excepcional results. I was not convinced at first, but after listening to my work on the radio, I trust the curves to the "T".
Thanks guys for creating this great tool!!!
pablodelrio
2009-06-29

Great product for audio professionals

I calibrated a rig of 6 jbl Vertec 88's and 4 80's per side, driven by Lake. And then compared it with a reading from my DBX rta mic. And I must say I was very surprised. It did pretty good. It does lack response above about 12k and below about 40hz. But with the externel mice coming in February. It will be an awsome thing to have
Msandel
2009-06-12

This program is so worthless

This program puts on a nice light show but thats about it. After noticing a distinct difference between speach response curves as compared to my Frye Box (A $7000 sound analyzer used for hearing aids and speech mapping) I decided to check the calibration of the program and it's awfull! A 1KHZ Pure Tone shows up as a nearly 4khz and a 250hz tone shows up as 1.5K. There seems to be no way to calibrate the program either. This program is waste of $$$ BEWARE!!!
geowizrd
2009-06-10

Good app

I've been a professional sound man for 30+ years I've seen a lot of gadgets some work and some don't but if you need good ball park measurements this app is what you need. I've tested it against my DBX RTA, Signal Scope and Mac the Scope on my lap top and it's accurate if you calibrate it properly. It's a good app for spot checking a room before you set your system.
Jimmymjr
2009-05-24

perfect for what it is

I am a pro audio engineer and this app has proven very handy for nailing feedback problems on live gigs and frankly has saved my butt a few times helping me quickly rough in a system eq while the band's set has already started.
Wilburguy
2009-05-21

Not worth ten bucks.

This does not work as well as I hoped. What a waste of ten bucks. I wishbthere was a lite version of this I could have tried first.
Ortish
2009-04-13

Good, but FFT is better (I guess)

I was at work (I'm a live sound engineer) and we were discussing speaker phase, when I said "They should make an app so you could test spkrs with iPhone." It didn't take long before I found all the Studio 6 products. I now have SpeakerPop, GEN, SPL, & RTA. They all work wonderfully.
That said, I was a little disappointed to learn about FFT. It's not made too clear in the descriptions, but FFT is basically a more accurate & detailed version of RTA. I wish I'd bought FFT, since I want the most accurate thing availible. However, I'd already purchased RTA, & because of App Store rules, I can't trade it in towards FFT.
If you're going to spend $10 on an app, you are probably going to use it for work like me, so splurge & get the $20 FFT. I am debating it, my main hangup is that I've already spent $10 on the RTA app.
Ahavill
2009-03-20

App

Great app so far. Does what it's says but I hoped it played music from my iphone and ran this app at the same time for $9.99
Kj1134
2009-02-14

surprisingly useful tool

Others have already stated the strengths of this application. So I'll just restate how convenient it is to have it with me at all times. You never know when you might be called upon to ring out some stage monitors....
SoundsOKtoMe
2009-01-18

Suprisingly accurate.

I was hesitant to buy this app, thinking there was no way it could be remotely accurate. But since it was ten bucks, I figured it must be somewhat professional. So, I bought it, played with it a little, and then tested it against my analysis rig. I use smaart v.6 with a sound devices usbpre and an audix tr40a mic. I set up my rig and tested this app against it and was blown away by the results! It's very accurate considering the hardware it uses, and is a great app to have as a pocket rta. It's not as accurate or in-depth as smaart, but it's handy and is less than 1/100th the cost of my setup (not including the computer required to use it.) Overall, a great product. I have since bought studio six's tone gen and polarity check and am pleased with them as well.
MRsound011
2009-01-10

Good App

Nice. But would be even more useful with NC and NR curves as well.
dBNick
2008-12-19

RTA

Great app, works well, real easy to use and easy to calibrate. If you are looking for an inexpensive RTA this has got to be the one.
Digione
2008-12-14

If you know what this is, BUY IT!

Extremely handy tool for the audio folks, an RTA in your pocket. iPhone is somewhat limiting at a mere 105dB max and noisefloor of 28dB on my phone but for most basic quick tweaks, this will do the job. Of course if you get a real mic, this app is priceless. So Nathan and Luke, stop reading this and buy it already :)
I'm a freakin' App junkie!