CVOsc

Name: CVOsc
Author: Aleph Void, LLC

Android app by Aleph Void, LLC. Music & Audio · Aleph Void, LLC

Store rating: Unknown
Store rating count: Unknown
Download price: Free to download
In-app purchases: Listed by the store
Version: 1.8
Listing last refreshed: 2026-09-13

Store description excerpt

CVOsc turns a DC-coupled USB audio interface into a portable, multichannel oscilloscope for your modular synth rig. Connect an Expert Sleepers ES-9, ES-8, or any class-compliant DC-coupled interface to your Android phone or tablet, 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, sold via Google Play) • 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 in Google Play; 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. Verified hardware includes the Expert Sleepers ES-9 and ES-8. A powered USB hub is recommended for tablets that don't supply enough bus power. Privacy Audio captured from your interface is processed on-device only and is never transmitted by CVOsc. Recordings stay in app-private storage unless you enable Android cloud backup in Settings. Anonymous analytics and crash reporting can be disabled in Settings → Privacy at any time, and are off by default for users in the EU/EEA/UK/Switzerland until you opt in. DC Coupled Sound cards that are supp

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