PulseDial DTMF Synthesizer

PulseDial - Authentic DTMF Synthesizer.

Transform classic telephone keypad tones into a playable musical instrument with modern features. PulseDial is a professional-grade DTMF (Dual-Tone Multi-Frequency) synthesizer plugin designed for musicians, sound designers, and telecommunications professionals.

Key Features:

• Authentic DTMF Synthesis: Precisely generated dual-tone frequencies with ±1.5% precision, meeting ITU-T Q.23 compliance standards.
• Interactive Keypad: 4×4 telephone-style keypad for mouse/touch operation with visual feedback.
• MIDI Compatibility: Full MIDI note and controller support with 16 consecutive notes mapping to keypad keys.
• Multiple Tone Modes: Hold, OneShot, and ITU-T Spec compliance modes for different playback behaviors.
• Advanced Arpeggiator: 8 pattern slots with up to 16 steps each, featuring multiple play modes (Forward, Reverse, PingPong, Random).
• Phone Line Simulation: 6th-order bandpass filter emulating authentic telephone line frequency response (300Hz to 3400Hz).
• Creative Effects: Noise, saturation, quantization, and stereo width controls for sound design possibilities.
• Multiple Plugin Formats: Available as VST3, AU, AUv3, CLAP, LV2, and standalone applications for maximum compatibility.

Sound Design Capabilities:

The arpeggiator transforms PulseDial into a pattern sequencer, perfect for creating rhythmic sequences, "phone number melodies," and generative compositions. Layer multiple keys simultaneously for complex harmonic content, or use the Lo-Fi preset with arpeggiator for glitchy sequences. The stereo width control adds spaciousness to your productions, while saturation and quantization create vintage digital aesthetics.

Telecommunications Accuracy:

Perfect for sound designers creating retro communication sounds, vintage tech simulations, or authentic DTMF signaling. The Spec mode enforces ITU-T Q.23 timing requirements with minimum 40ms tone duration and 40ms gap between tones, ensuring compatibility with telephone systems.

MIDI Integration:

Full MIDI support includes omni input mode (all channels accepted) with note mapping from C4 (key "1") across 16 consecutive notes, CC1 for temporary gain boost, CC71 for phone filter mix, and CC74 for saturation amount. Arpeggiator output can be routed to specific MIDI channels (1-16). Program Change 0-3 instantly recalls factory presets during performance.

Technical Specifications:

• DTMF Frequency Accuracy: ±1.5% (ITU-T Q.23 compliant).
• Polyphony: 12 simultaneous voices.
• Sample Rates: 44.1kHz, 48kHz, 96kHz (and others).
• Parameter Range: Output Gain (0.0-2.0), Attack (0.5-100ms), Release (1-1000ms), Tone Duration (40-1000ms).
• Effects: Noise (0-0.1), Saturation (0-1.0), Bit Depth (8-16), Stereo Width (0-200%).
• Arpeggiator: 8 pattern slots, 16 steps per pattern, 60-240 BPM tempo range.

System Requirements:

• MacOS 10.13+, Windows 10+, or Linux.
• Intel or Apple Silicon / Intel or AMD 64-bit processor.
• Compatible DAW supporting VST3, AU, AUv3, CLAP, or LV2 plugins.
• 1GB free disk space.

Presets:

• Clean: Pure DTMF tones, no coloration (perfect for precise signaling).
• Phone Line: Authentic telephone line emulation with subtle noise and light saturation.
• Lo-Fi: Heavy phone filtering, increased noise, and high saturation for creative textures.
• Wide: Full bandwidth with spacious stereo presentation.