Soundtract vs MIDI Controller/Oscilloscope

Soundtract is a little pocket audio app we put together initially to make transcribing field recordings easier. We then realised it's perfect for musicians learning to play by ear, etc... While it's a small app with a simple interface, Soundtract really packs a punch in the feature department. Perhaps the thing we're most proud of, and where the app gets it's name, is the ability to apply very sophisticated noise reduction in real time to existing audio. We use a technique known as spectral subtraction, where we literally remove the noisy bits from the audio. Not only will Soundtract clean up audio recordings, but you can import the your VIDEOS as well, clean up the audio, and re-export back into video. And unlike other apps, our noise reduction is done on-the-fly in real time. Other notables features include the ability to zoom and isolate portions of audio for replay, reduce tempo by up to 30%, and export m4a and mov formats. Features Include: - Import all non-DRM audio from iTunes. - Import the audio channel from videos. - Real-time noise reduction based on spectral subtraction. Noise can be chosen automatically or isolated specifically by selection within the waveform. - Fast OpenGL waveform rendering optimised for very long recordings. - Gesture-based panning/zooming. - Tempo reduction up to 70%. - Isolate portions of audio for looping playback. - Resume last song and play marker location on relaunch. - MP4A export with all effects (tempo change/noise reduction) for either whole audio or isolated portions. - Video export. Export “clean” audio back into the original video source and render the new video back into the Photo library.

A powerful all-in-one studio companion for hardware synthesizers, drum machines, and audio gear. Connect your USB MIDI devices and audio interfaces and start playing, sequencing, and analyzing instantly. KEYS — Multi-Touch Performance Keyboard • 3-octave velocity-sensitive piano with multi-finger support • Velocity from touch position — soft on top, loud at the bottom • Spring-loaded pitch bend wheel (14-bit precision) • Mod wheel (CC#1) for expressive control • Program change selector with quick recall • Octave shifting from -2 to +5 • Per-channel routing to different synths • Transpose mode — keyboard transposes the live sequence SEQ — 16-Channel Step Sequencer • 16 independent MIDI channels, up to 32 steps each • Mono mode for melody and bass lines • Poly mode with full piano roll editor • Swing control for groove (0-50%) • Live recording from your external keyboard • MIDI clock sync — auto-detects tempo from incoming clock • Per-channel destination routing — each track plays a different synth • Live transpose during playback • Adjustable note range and pattern length SCOPE — Real-Time Multi-Channel Oscilloscope • Up to 8 channels simultaneously from USB audio interfaces • 1-2-5 standard time/division (10 microseconds to 500 ms) • Configurable voltage/division with auto-scale • Rising and falling edge trigger with adjustable level • Auto and Normal trigger modes • Per-channel color, vertical offset, and on/off • Phosphor persistence with adjustable decay • Glow effect with intensity control • Three background themes — Classic, Space, Shockwave • Metal-accelerated rendering CONNECTIVITY • USB MIDI — plug in your hardware controllers and synths • USB audio interfaces — multi-channel input for the oscilloscope • Network MIDI / Bluetooth MIDI compatible • Companion iPhone app — record video while iPad captures audio over Wi-Fi (Bonjour) DESIGNED FOR PERFORMANCE • Sub-millisecond sequencer timing • Lock-free audio buffers for glitch-free capture • Optimized for iPad landscape — full immersive UI • Per-app settings for every channel, every parameter, persistent across sessions Whether you're sketching ideas in the studio, performing live, debugging a Eurorack patch, or learning synthesis, this app brings keyboard, sequencer, and oscilloscope into a single, fast, focused interface. No ads. No subscriptions. No accounts. Just plug in and play.