CVOsc vs CronSequitur

Connect an Expert Sleepers ES-9, ES-8, or any class-compliant DC-coupled interface to your iOS Device, and visualize up to sixteen simultaneous channels of Control Voltage and audio — no laptop, no patch cables to a computer. See your patch • Up to 16 simultaneous channels in a paged, responsive grid • Three display modes: All (every channel), Selected (just the channels you tag), and Overlay (selected traces superimposed on a single canvas for phase and correlation work) • Per-channel range, offset, and time base, in volts for CV and normalized units for audio • Auto-trigger on zero crossing for rock-steady waveforms • Auto-fit to waveform when you just want the trace centered • Independent CV vs Audio mode per channel, with renameable identities ("VCO 1", "LFO Slow", etc.) Listen in • Built-in live monitor: route any input channel to any physical output of the interface • Monitor multiple channels simultaneously, each to its own output • Output assignments persist across sessions • Hot-plug aware — disconnect and reconnect, and CVOsc rebinds automatically Pro features (auto-renewing annual subscriptions) • Tuner — pitch detection that works on both CV pitch signals and audio. See note name and cents offset live in the pane. • Record & Playback — capture every selected channel to its own WAV file, then play recordings back through the interface. CV recordings are routed only to DC-coupled outputs; the app warns you if you try otherwise. Live monitoring and playback share the same USB pipeline, so you can play recordings while monitoring live channels at the same time. • Saved Channel Settings — every channel comes back exactly the way you left it on the next launch. • Presets — save and recall whole-rig configurations: channel names, signal types, all scale settings, monitor routings — under a single name. Each subscription is independent. Restore Purchases in Settings re-entitles anything you've previously bought on this Google account. Cancel anytime; cancellations take effect at the end of the current billing period. Hardware requirements CVOsc requires a class-compliant USB audio interface and a USB-C OTG cable. To visualize CV signals (not just audio), the interface must be DC-coupled. A powered USB hub is recommended for tablets that don't supply enough bus power. Supported DC Coupled USB Sound Cards Expert Sleepers - ES-9 (14 ch) - ES-8 (8 ch) - ES-3 (8 ch) - ES-40 (8 ch) Solid State Logic - SSL 2 MKII (2 ch) - SSL 2+ MKII (4 ch) - SSL 12 (4 ch) - SSL 18 (10 ch) - SSL ALPHA 8 (8 ch) MOTU - M2 / M4 / M6 (2 / 4 / 6 ch) - UltraLite-mk5 (10 ch), UltraLite AVB (8 ch) - 624 (6 ch), 8A (8 ch), 8M (8 ch), 10pre (8 ch), 16A (16 ch), 24Ao (24 ch) - 1248 (8 ch), 828 (8 ch), 828es (8 ch), 848 (12 ch) RME - Fireface UCX II (6 ch) Universal Audio - Apollo Twin / Twin MkII / Twin X / Twin USB / Twin X USB (4 ch) - Apollo x4 (6 ch), x6 (8 ch), x8 (10 ch), x8p (10 ch), x16 (18 ch) Native Instruments - Komplete Audio 6 MK2 (4 ch) Non-DC Coupled interfaces still work for audio I/O; they just won't pass the validator's DC-coupling check for CV playback. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://cvosc.com/privacy.html

CronSequitur is a step sequencer with a grid layout that feels like real hardware, not a menu system with deeply nested functions you may never find. Every step can carry more than a note. Program changes and control changes sit right beside the note, not in a separate menu. A 2 to 64 step grid and full time-signature control make odd meters and unusual pattern lengths part of the design, not an afterthought. The core app needs no purchase. Two optional in-app purchases add more: Standard, a one-time purchase, and Pro, a one-time purchase or an annual subscription. If you already own Standard, Pro's one-time purchase is offered to you as an upgrade. Each paid feature is listed below under the purchase that includes it; everything else described here is part of the core app. CORE APP • The step sequencer and step editor: program changes and control changes on any step, 2 to 64 steps per pattern, full time-signature control • MIDI output to your external gear • The built-in synth, with a tempo-synced delay and a two-band EQ • Transpose: shift a pattern to another key without rewriting its notes, saved with the preset • Undo and redo for every edit, with no limit until you save • Unlimited presets • The metronome's audio click, visual beat indicators and count-in, and tap tempo • Export, import and back up your presets and songs in CronSequitur's own file format • Build and edit songs from your patterns, with sections, repeats and tempo changes • Full playback of the demo songs in the Library's Factory section • A preview of the first section of each song in My Songs, which holds the songs you build and any demo song you copy or edit. Full playback of these songs requires Pro (Song Playback, below). • Daylight mode, a high-contrast display for direct sun STANDARD IN-APP PURCHASE (ONE-TIME) • Virtual MIDI Output: send MIDI to other apps on the same device, no cables • Tags: tag your presets and filter them by tag • MIDI File Import & Export: standard MIDI files, to and from your DAW and other gear • Device Profiles: built-in and custom profiles that show your gear's own controls and labels • Screen Flash: a full-screen flash on each metronome beat • Metronome Haptics: a vibration on each metronome beat (iPhone only) • Tap Tempo Guard: TAP must be armed with one tap before it changes the tempo, so a stray touch mid-set does nothing • Performance Octave: shift your pattern up to three octaves up or down, live, while you perform PRO IN-APP PURCHASE (ONE-TIME OR ANNUAL SUBSCRIPTION) Pro includes everything in Standard, plus: • Song Playback: full playback of the songs in My Songs, start to finish, with every section, repeat and tempo change, a countdown to the next section and your own stage cues on screen • Section Pads: jump to or loop any song section live • Audio Backing Tracks: import audio files to play along with your songs • Tempo-Locked Playback: backing tracks detect their tempo and stretch to match your song • Group Sync: many musicians, one song. Each player runs their own part on their own device, and the whole band starts, stops, changes tempo and moves through the song together over local Wi-Fi. Every device in the session needs Pro. • Section Audio Tracks: give each song section its own backing track Independently made in Maine. Fair pricing, no dark patterns, no surprises, built by a musician who wanted this to exist.