Phantom Syren

Phantom Syren is a low-latency, real-time vocal processing console for Windows. It lets streamers, podcasters, and vocalists monitor their voice live through a customizable chain of studio effects, with intuitive controls, responsive meters, and flexible device/back-end options. The app focuses on stable performance, smooth parameter editing, and practical presets that get you sounding great immediately.

- Streamers and creators who need polished vocals in real time

- Podcasters and broadcasters looking for consistent, radio-ready tone

- Vocalists who want live monitoring with a compact, reliable effects chain

• - Real-time engine

• - WASAPI shared mode with configurable output latency

• - Optional ASIO backend (InitRecordAndPlayback) for minimal latency

• - IEEE float 32 and PCM16 capture support, processing in float

• - Adjustable SampleRate, BufferSize, Channels, and output latency (WASAPI)

• - Quality presets (Low Latency, Balanced, High Quality) for quick setup

• - Toggle between ASIO and WASAPI

• - ASIO driver picker when ASIO is enabled

• - WASAPI input/output device selection when ASIO is disabled

• - Master Input and Master Output gain blocks

• - Built-in processors with dedicated parameter editors and bypass

  • - High-pass filter

  • - Noise reduction / gate

  • - Pitch correction (key/scale, amount, speed, tolerance, humanize, vibrato, formants)

  • - Equalizer (3-band)

  • - Compressor (threshold, ratio, attack, release, makeup)

  • - Distortion/saturation (drive, tone, mix, hard-clip)

  • - Chorus/doubler

  • - Tremolo

  • - Delay (ping-pong)

  • - Reverb (room, damping, width, predelay)

  • - Low-pass filter

  • - Limiter (ceiling, release)

  • - Reorder with Move Up/Down controls

• - Built-in chain presets (e.g., Podcast, Rock, Pop Tight, EDM Lead, ASMR, LoFi)

• - Save and load custom chain presets to JSON including parameters and master gains

• - Left and right RMS meters with CPU processing time per buffer

• - Input and output waveform previews updated ~30 FPS

• - WPF + MVVM with a compact, wrap-friendly top bar

• - Themed appearance and accessible standard controls

• - Platform: Windows (WPF, .NET VB)

• - Audio stack: NAudio (WASAPI shared, ASIO)

• - Sample rates: 44.1, 48, 96 kHz (selection depends on backend/device)

• - Buffer sizes: 64 to 1024 frames (selection depends on backend/device)

• - Channels: mono or stereo

• - Preset format: JSON (type, name, bypass, parameters, master gains)

• - Minimal setup: pick devices, a quality level, and a preset to get broadcast-ready sound fast

• - Live-safe editing: parameters exposed with intuitive ranges to reduce zipper noise risk in practice

• - Practical defaults: curated set of effects and presets tailored for spoken voice and lead vocals

• - Transparent metering: see levels, CPU time, and waveform snapshots at a glance

• - Engine and performance

  • - Eliminate per-buffer allocations via buffer pooling and Span-based processing

  • - Lock-free queues for parameter updates; apply at buffer boundaries

  • - Optional WASAPI Exclusive mode and buffer negotiation

• - Chain management

  • - Drag-and-drop effect reorder

  • - Atomic graph swap at buffer boundaries for glitch-free updates

  • - Global bypass and per-effect solo (for auditioning)

• - Metering and diagnostics

  • - Peak meters alongside RMS, per-effect gain reduction where applicable

  • - Backend and latency summary in status area

• - Presets and sessions

  • - Versioned preset JSON with migrations

  • - Session save/load (full app state)

  • - Per-effect preset browser

• - DSP improvements

  • - Parameter smoothing utilities across effects

  • - Optional oversampling for distortion-style effects

  • - Reverb quality modes

• - I/O reliability

  • - Device hotplug resilience with seamless re-init

  • - ASIO channel mapping and format diagnostics

• - UX and accessibility

  • - Collapsible effect cards, virtualization for large chains

  • - Enhanced keyboard navigation and screen reader naming

• - Extensibility (research)

  • - Internal .NET effect plugin API

  • - VST3 hosting feasibility and licensing

• - Windows 10/11

• - Audio interface or onboard audio compatible with WASAPI; ASIO driver optional for lowest latency

• - .NET Desktop Runtime (version aligned with project target)

- Launch the app and choose ASIO or WASAPI

- Select your input (microphone) and output (headphones)

- Pick a Quality preset, then a built-in chain preset

- Click Start to monitor your processed voice in real time

- Fine-tune effect parameters, save your own preset when ready

• -Engine and performance enhancements
• -Rebuilt Autotune effect from ground up to fix persistent popping bug
• - Eliminate per-buffer allocations via buffer pooling and Span-based processing
• - Lock-free queues for parameter updates; apply at buffer boundaries
• - Optional WASAPI Exclusive mode and buffer negotiation
• - Chain management
• - Drag-and-drop effect reorder
• - Atomic graph swap at buffer boundaries for glitch-free updates
• - VST2 hosting for adding your favorite plugins
• - Collapsible effect cards, virtualization for large chains
• -Simultaneous Pre/Post Effects Chain recording to .wav file and playback
• Adopted a year based versioning system formatted as such: Year.Major.Minor