Oscilloscope vs Audio Analyzer

"I use this for analog, and audio measurements. Attach an Apple USB adapter and a $40 stereo A-D converter available online, and my iPad is like a $300 O'Scope." -thymeout- Oscilloscope app is great for analyzing audio range signals, or learning oscilloscope measurement basics. The interface includes many standard oscilloscope controls, such as: triggering, time and voltage per division, signal measurement cursors, and more. The app incorporates a signal (function) generator capable of generating sine, square, triangle, and sawtooth waveforms of up to 22 KHz. Calibration to an external reference signal is supported, guaranteeing the accuracy of measurements. Input can be acquired via the built-in microphone or an external mic/probe connected to the headset connector. For best results, use an external audio interface connected to your device dock. This allows for standard audio equipment to be connected, as well as for dual channel input. Oscilloscope probes also be connected (using a BNC connector). When feeding external signals via probes, you should take care not to exceed 1V AC voltage. Currently iDevices support only AC input. For up-to-date information on feeding signals and currently supported audio interfaces, please visit http://oa.onyx3.com Feature Highlights: ● Real-time waveform display (60 FPS) ● Triggering modes: Normal, Auto, Single ● Set trigger level and pre-trigger time ● Dual channel signal generator ● Reference signal calibration ● Pause function to get a screen capture ● Export traces as text file for further analysis ● Measure signal data using cursors ● Use "finger pinch" on screen to set voltage and time base ● Double tap screen to enter Black Panel mode ● Three color themes to choose from ● XY mode for viewing Lissajous figures ● Frequency range 20Hz-22KHz ● iPhone X ready

Audio Analyzer is a real-time spectrum, spectrogram, oscilloscope and octave RTA analyzer. It gives you a visual representation of an acoustic signal. It can be used to analyze the sounds of musical instruments, to identify spoken words phonetically, to measure the frequency response of audio equipment, or to picture the calls of different animals. You can also check “The Singer’s Formant”, the most important measure for every opera singer. Features - Spectrogram analyzer (color, black and white) - Spectrum analyzer - Oscilloscope (full FFT window size) - Octave RTA analyzer: bands - full, 1/3, 1/6, 1/12 (RMS values) - SPL Meter (dBFS) - Recording trigger (triggered by frequencies in the specified frequency band) - Fast real-time response - Sampling rates: 44.1kHz, 48kHz, 96kHz* - Fast Fourier Transform (FFT) - Window sizes: 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536 - Variable frequency resolution of the spectrogram - Variable between FFT computations time interval (time resolution) - Max/min Octave RTA values - Zoom and pan all charts - Measure values in all charts - Play back analysis (just tap on the spectrogram and play) - PIP (picture-in-picture), allows the simultaneous analysis on the spectrogram chart and Second chart: Octave RTA, Spectrum or Oscilloscope - Audio input can be supplied via the built-in microphone, and an external microphone* (via the earphone jack, via the USB camera adapter, or through the iPhone/iPad dock connector – Core Audio compliant devices). External devices are shown in the application only when connected (e.g. external mic connected via the earphone jack) - Sharing charts and audio recordings (through mail, social networks, clipboard) - Exporting to the iOS Document Browser (supports iCloud): audio recordings (wav) and image charts (png) - Importing audio files from another application or from the iOS Document Browser (supports iCloud) - Many formats supported for audio file import - Automatic conversion from other sampling rates for imported files - Frequency scale: linear and logarithmic - Amplitude scale: linear and logarithmic SPL/RMS (dBFS) - SPL meter weighting: dBZ - linear Make sure you use the latest iOS update. *For 96kHz analysis use an external microphone with such capabilities through a USB camera adapter or through the iPhone/iPad dock connector (internal mic or external mic connected via the earphone jack can only be used for 44.1kHz or 48kHz analysis) You can also import files recorded on an external device.