Orpheo Music Production

The Founders Trio

A modular, high-stability plugin suite designed for native DAW rendering. No fluff, no GUI bloat, just irrefutable DSP.

Orpheus Hermes

Dynamics Without The Annoying Plink

Ballistics: 0.5 ms Attack (Peak Grab) Orpheus Hermes 0.5 ms attack transient clamping
Ballistics: 33.1 ms Attack (Mid Contour) Orpheus Hermes 33.1 ms attack contour
Ballistics: 100 ms Attack (Bus Punch) Orpheus Hermes 100 ms attack bus glue
Native Host UI (CLAP in REAPER) Orpheus Hermes native parameter sliders in REAPER
Static Transfer Curve (6.5:1 Ratio) Orpheus Hermes 6.5:1 ratio transfer curve
Sustain Body Circuit Response Orpheus Hermes sustain body frequency contour
Buffer Performance Sweep Orpheus Hermes zero-latency execution sweep
Dynamics & Transient Detection Engine

Orpheus Hermes decouples transient peak clamping from sustained low-end weight. Operating on a feed-forward detector architecture, it eliminates the brittle click distortion and squawk common to fast digital limiters while maintaining zero algorithmic latency and sample-accurate gain tracking.

Transient Peak Clamping

Attack ballistics down to 0.5 ms clamp erratic transients instantly without waveform squashing or modulation distortion. Drum snap and pick attack stay intact while peaks are controlled transparently.

Sustain Body Circuit

Frequency-selectable low-end reinforcement counteracts the thinning that occurs during heavy gain reduction. Anchors fundamental bass weight and midrange punch without smear or phase issues.

Decoupled Tube Harmonics

Functions as an uncolored feed-forward digital utility compressor by default. Selectable tube drive layers in warm analog weight post-compression, completely decoupled from detector ballistics.

Detector Type
Internal dynamic detection prevents transient distortion common in legacy sub-bass enhancers, removing the need for pre-clippers and gates
Zero-Process Utility
Deterministic digital feed-forward compressor circuit designed for fast level staging, ducking, and punch reinforcement
Tube Saturation
Selectable tube drive circuit decoupled from detector ballistics for musical saturation without compression squawk
Sub Harmonics
Generates targeted upper harmonics from fundamentals to make low-end translate clearly on small monitors without sacrificing headroom

Orpheus Zeus

Physical Circuit Loading Across Discrete Topologies

Harmonic Decay: Tube Circuit Zeus tube harmonic curve with zero alias foldback
Anti-Aliasing Test: Tape Circuit Zeus tape circuit anti-aliasing test
Anti-Aliasing Test: Transformer Circuit Zeus transformer circuit anti-aliasing test
Transfer Curve: Tube Circuit Zeus discrete tube transfer curve
Transfer Curve: Tube into Transformer Zeus compound transformer saturation knee
Native Host UI (CLAP in REAPER) Orpheus Zeus native saturation dropdowns in REAPER
Buffer Performance Sweep Zeus zero-latency execution sweep across buffer sizes
Multi-Stage Analog Topology Engine

Orpheus Zeus models discrete physical circuit behaviors rather than static polynomial waveshaping. Designed with internal anti-aliasing math, it delivers musical analog color and compression knees with zero Nyquist alias foldback, even when pushed past +24 dB of input drive.

Tube Stage: Asymmetric Knee

Generates a musical cascade of even and odd harmonic overtones with a smooth, forgiving knee. Thickens vocals and midrange textures while preserving transient dynamics and breath.

Tape Stage: Symmetrical Compression

Simulates magnetic tape saturation and soft-clipping dynamics. Naturally rounds off brittle high frequencies and creates cohesion across dense mix elements without dulling top-end detail.

Transformer Core & Anti-Aliasing

Models low-frequency inductive iron core saturation with dominant odd-order harmonics. Anti-aliasing math ensures that harmonics decaying above 20 kHz do not reflect back as inharmonic foldback grit.

Architecture
Dual-stage saturation modeling independent input and output non-linearities
Topologies
Selectable physical circuit models: Tube, Tape, Transformer
Anti-Aliasing
Internal oversampling and anti-aliasing math ensuring zero Nyquist alias foldback under high drive
Performance
Zero latency, sample-accurate processing with cache-coherent memory footprint

Orpheus Aphrodite

Console DNA Captured In Pure Curve Geometry

Topology: API 550b Orpheus Aphrodite API 550b curve geometry
Topology: SSL 242 Orpheus Aphrodite SSL 242 curve geometry
Topology: Helios Type 69 Orpheus Aphrodite Helios Type 69 curve geometry
Helios Step: -3 dB Helios console stepped low cut -3 dB position
Helios Step: -6 dB Helios console stepped low cut -6 dB position
Helios Step: -9 dB Helios console stepped low cut -9 dB position
Helios Step: -12 dB Helios console stepped low cut -12 dB position
Native Host UI (CLAP in REAPER) Orpheus Aphrodite native parameter control in REAPER
Minimum-Phase Response Aphrodite minimum-phase tracking in PluginDoctor
Buffer Performance Sweep Aphrodite zero-latency performance profile
Dynamic Biquad Topology Engine

Orpheus Aphrodite executes dynamic filter coefficient recalculation per sample block. Switching console topologies via the host parameter does not load pre-rendered impulse responses or static convolution kernels. It alters the active coefficient mathematics directly, preserving pure minimum-phase tracking, zero algorithmic latency, and absolute numeric precision.

API 550b: Proportional-Q

Bandwidth responds dynamically to gain depth. Gentle 2 dB adjustments maintain broad, transparent curves for tonal shaping. Pushing into aggressive ±12 dB territory narrows the filter skirt automatically into focused corrective shapes without requiring a secondary Q control.

SSL 242: Deterministic Constant-Q

Filter bandwidth remains locked and symmetrical across all boost and cut depths. This delivers surgical isolation and constant band separation, preserving adjacent frequency relationships regardless of how heavily a band is driven.

Helios Type 69: Inductor & Stepped Cut

Models passive R/C/L inductor curve interactions. Mid bands exhibit authentic musical resonance, while the low-cut circuit accurately models the physical console's stepped inductor taps at -3 dB, -6 dB, -9 dB, and -12 dB instead of a generic continuous slope.

Architecture
100% GUI-less parametric EQ utilizing native CLAP/DAW parameters
Topology
Dynamic drop-downs adapt slider curves directly to specific console topologies: API 550b, SSL, Helios
Integration
Completely decoupled from the saturation stage for purely mathematical EQ shaping
Dynamic Filtering
Topology-matched high-pass filtering (18 dB/octave on SSL 242, 12 dB/octave on API 550b and Helios) to clear sub-audible rumble

DAW Stress Test & System Verification

Real-World Host Load & Chain Verification

Full Suite Drum Strip (REAPER Linux) Zeus, Hermes, and Aphrodite chained on Drum Group Master in REAPER Linux
Host Performance Meter REAPER performance meter verifying zero-latency realtime execution
Kernel Process Footprint (btop) Gentoo Linux btop monitor showing minimal CPU and memory overhead
[ Taking All Three Home? ]

Here at Orpheo, we believe in making music tools for everyone. If you feel like these have brought value to your sound or saved you time in your workflow, tossing a nug or dollar into our jar helps keep development rolling and our heads a lil bit more sane!

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Under the Hood

Technical Specifications

API
CLAP and VST3 native
Platforms
Linux, Windows, macOS
Interface
100% GUI-less relying entirely on native DAW UI to guarantee zero render-blocking bloat
Stability
Built for broadcast-tier reliability and extreme portability
Source
Open-source under MPL 2.0 hosted on Codeberg

macOS Gatekeeper Notice

Binaries are unsigned. Load the plugin once in your DAW, navigate to System Settings > Privacy & Security, and click Open Anyway

Alternatively, open the Terminal app and strip the quarantine flag manually:

xattr -dr com.apple.quarantine ~/Library/Audio/Plug-Ins/CLAP/*