RTA Audio 3.1
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Free Version
Publisher Description
RTA Audio
Realtime analyzer with recording and Visualizer module with export.
••• Realtime analyzer •••
Realtime analyzer gives you the ability to analyze realtime audio input (built-in microphone or external audio accessory inputs) using Fast Fourier Transform with selected window function. You can also record the input for future offline processing or export.
••• Visualizer •••
This module presents you the results of offline audio analysis. Selecting previously captured recording gives the graph view, spectrogram and waveform of the audio data. Simple controls gives you the ability to play, loop, seek and change rate of the recording synchronized with analysis data presentation. Export function allows you to share or archive your analysis. Resulting PDF document contains basic recording information, spectrogram, peak & RMS graph and frequency table data with maximum peaks (with the time of the occurrence in recording)
••• Features •••
Resolution: 1/2 - 1/96 Octave
Logarithmic frequency scale
Fixed frequency range (20 - 20kHz)
Tone scale view C₀- H₈ (A₄ = 440Hz)
Peak hold graph
Peak average graph
RMS average graph
Pointer (watch) function
Peak and RMS input meter
••• Audio input specification •••
Audio session mode - measurement
Input gain control
Sample rate: 48000 Hz
Bit depth: Float32
Channel: 1(mono)
Frequency range: 20Hz - 20kHz
Dynamic range: -100dB - 0dB
••• FFT (Fast Fourier Transform) specification •••
Frame size: 8192
Overlap: from 60% to 90%
Smoothing Window: Bartlett-Hann, Blackman, Blackman-Harris (default), Blackman-Nuttell, Cosine, Flat Top, Gauss, Hamming, Hann, Lanczos, Nuttall, Rectangular, Triangular
Hardware acceleration
Jun 3, 2021
Version 3.1
* Fixes crash on receiving phone calls.
* Fixes crash on Frequency watcher upper bound.
* Disables navigation during recording and visualizer analysis.
* Minor fixes.
About RTA Audio
RTA Audio is a free app for iOS published in the Audio File Players list of apps, part of Audio & Multimedia.
The company that develops RTA Audio is New Ball s.r.o.. The latest version released by its developer is 3.1.
To install RTA Audio on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2021-06-03 and was downloaded 20 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the RTA Audio as malware if the download link is broken.
How to install RTA Audio on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the RTA Audio is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After RTA Audio is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
