About RTA Audio
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
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.
Previous Versions
Here you can find the changelog of RTA Audio since it was posted on our website on 2016-09-24 11:02:47.
The latest version is 3.1 and it was updated on 2024-04-22 09:10:15. See below the changes in each version.
RTA Audio version 3.1
Updated At: 2021-06-03
Changes: 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.
RTA Audio version 2.0.2
Updated At: 2012-05-11
Disclaimer
Official App Store Link
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