VAPolyQuad vs Oscilloscope Pro Audio Scope

VAPolyQuad is a virtual analog polyphonic synthesizer for iPhone, iPad and Mac. It features 8 voice synthesizer, effects, sequencer and audio visualization tools. It operates as a stand alone or as an AudioUnit Extension (AUv3). Stand Alone supports Ableton Link, MIDI and audio file export. Single voice of the synthesizer features four oscillators, two mixers, two resonant high pass filters, two resonant low pass filters, two amplifiers, four ADSR envelopes and four LFOs. The oscillators features continuously variable wave shape and wide variety of modulation. The filters are modeled on the Sallen-Key filter circuit and cascaded OTA filter circuit for classic analog sound. The Effects include delay, chorus, flanger, reverb, eq and compressor. The sequencer features piano roll and parameter automation editor to program 16 bar pattern per clip. Project files can be saved in iCloud Drive, so that the project can be accessed from iPhone, iPad or Mac. - Main Features - Virtual analog polyphonic synthesizer. Maximum 8 voice polyphony. it depends on performance of the device it is running. Four oscillators per voice. Flexible audio signal and control signal routing. Keyboard Control Routing Two type of Lowpass filter, cascaded OTA model and Sallen-key model. Support MIDI 2.0 New User Interface built by SwiftUI for improved performance. Built-in Sequencer. 16 bar patterns per clip. Total 8 clips. Piano Roll and Parameter automation. Support Audio Unit Extension (AUv3) Works on iPhone, iPad and Mac. Support iCloud Drive to share project files between the platforms. Audio Export. Linear PCM format (AIFF, WAV and CAF) and compressed format (AAC) Support Ableton Link, Bluetooth MIDI, MIDI In / Out. 370 Factory Presets - System Requirements - A13 Fusion or above is recommended. AudioUnit Extension (AUv3) requires host application which support AudioUnit Extension. AudioUnit Extension is supported by Apple Logic and Apple Garage Band on iOS and macOS. For any other DAW, it depends on the application and some of them don’t support AudioUnit Extension. Sound may be distorted if CPU of the device doesn't have enough power. If it happens reduce number of voices.

Oscilloscope is a professional audio analysis app that transforms your iPhone or iPad into a comprehensive audio measurement system. Whether you are a sound engineer, musician, podcaster, or audio enthusiast, Oscilloscope provides the tools you need to visualize and analyze sound with precision. REAL-TIME OSCILLOSCOPE View up to 3 seconds of audio waveform history with crystal-clear visualization. Pause playback to examine specific moments, scroll horizontally to navigate through captured audio, and pinch to zoom for detailed inspection. Support for stereo, left-only, right-only, and mono summed display modes gives you complete control over your analysis. SPECTROGRAM ANALYSIS Visualize frequency content over time with a professional-grade spectrogram display. The app features a perceptually-accurate Bark frequency scale that mirrors how human hearing perceives sound, making it ideal for music mixing, room acoustics analysis, and identifying problematic frequencies. STEREO CORRELATION METER The XY display mode provides a Lissajous-style visualization of stereo phase correlation. Instantly identify phase issues, mono compatibility problems, and stereo width characteristics. The integrated correlation meter shows real-time phase relationship between left and right channels. FREQUENCY DETECTION Identify frequencies with precision using advanced pitch detection. The app displays detected frequency in Hz, the corresponding musical note name, MIDI note number, and cents deviation from perfect pitch. Perfect for tuning instruments, analyzing vocals, or identifying resonant frequencies. TRIGGER MODES Choose between level-based triggering with adjustable threshold for stable waveform display, or frequency-based triggering for pitch-locked visualization. Lookahead compensation ensures you never miss the transient you are looking for. PROFESSIONAL FEATURES - Support for all audio input sources including built-in microphone, external audio interfaces, and inter-app audio - AUv3 Audio Unit plugin for use within your favorite DAW or host app - Stereo level meters with peak hold - Adjustable time window from microseconds to seconds - High-resolution display optimized for all iOS devices - Dark interface designed for studio environments MEASUREMENT CAPABILITIES - Real-time waveform visualization at 60 frames per second - FFT-based spectrum analysis with configurable resolution - Bark-scale spectrogram for perceptual frequency analysis - Phase correlation measurement from -1 to +1 - Peak level metering with accurate dBFS display USE CASES - Live sound engineering and system tuning - Studio mixing and mastering reference - Acoustic measurement and room analysis - Musical instrument tuning and intonation checking - Podcast and broadcast audio monitoring - Educational demonstrations of sound and acoustics - Troubleshooting audio equipment and connections Oscilloscope delivers professional-grade audio analysis in a portable, intuitive package. Download now and see your sound like never before. Privacy Policy: https://audiomillo.com/privacy Terms of Service: https://audiomillo.com/eula