Updated UIAdded info menuNew settings menuNew audio engineAdded adjustable sample rate and buffer sizeMore detailed readouts for all utilitiesLarger font sizePause is now located on the action barScope includes time readoutScope trigger level is now adjustable on viewFFT now tracks up to 5 peaksFFT is much more accurateSpectrum also calculates amplitude on readoutSpectrogram now calculates time and amplitude on readoutSpectrogram is much faster and detailed
Reduced package sizeAdded ability to take screenshotsCPU optimizations for higher frame rates and less battery usageReplaced interstitial ads with banner adsMinor layout tweaks
AudioUtil features tools for capturing and analyzing audio signals from your devices microphone in real-time. Screenshots of the display can easily be taken through the utility's context menu. Touch the graph to show a value readout. Adjust multiple parameters like sample rate, buffer size, zero padding, window type, range, and themes to name a few.
Utility Descriptions:
Oscilloscope
• View sound waves in the time domain.
• Amplitude measurement by dragging on the screen.
• (Pro)Set trigger level to freeze display if audio exceeds amplitude threshold.
• Displays time and amplitude in readout.
Meter
• Amplitude readout with variable time falloff.
FFT
• (Pro)Linear and logged frequency axis.
• (Pro)Peak tracking for up to five peaks.
• Displays frequency and amplitude in readout.
Spectrogram
• Definable frequency limits to zoom in on desired frequencies.
• (Pro)Four themes/color maps.
• Displays time, frequency, and amplitude in readout.
Spectrum
• View a FFT analysis as a color spectrum.
• (Pro)Four themes/color maps.
• Displays frequency and amplitude in readout.
About permissions: This app requests minimal permissions to record audio and to write to storage. These are required in order to successfully capture sound and save screenshots to the device.