Speech Coaching

Mellifluo.us

Speech-fluency coaching for people who say “um” too often, rush under pressure, or trail off when nervous. Every analysis runs on your device — your voice never leaves your phone.

Mellifluo.us — live practice session mock

What it is

Mellifluous — Latin for “honey-flowing speech” — is a speech coach that treats how you sound as something to refine, not diagnose. It listens while you practice, measures rate, pitch, and disfluency in real time, and builds training plans from your own sessions. A parallel iOS track applies therapeutic-grade delayed auditory feedback for cluttering. The architectural bet: everything runs on-device, so the most personal data there is — your voice, unguarded — stays yours.

The Pipeline

C
Capture
Web Audio API + AudioWorklet, all processing on-device
A
Analyze
Windowed FFT for speech rate, YIN for pitch, amplitude-domain disfluency detection
C
Coach
Session summaries and training plans built from your own patterns

Key Capabilities

  • Live speech-rate tracking with sub-100ms feedback
  • Pitch and resonance analysis via YIN fundamental-frequency detection
  • Disfluency patterns surfaced gently — filler words, rushes, trail-offs
  • Delayed auditory feedback track for cluttering, a disorder affecting ~1% of people
  • Exercise plans generated from your own sessions, not generic drills
  • Honey-flow design language — editorial warmth, not a medical instrument

Privacy

On-device only

No cloud audio, no transcripts on a server. The analysis pipeline runs entirely in the browser's audio worklet.

Design Language

Honey-flow

Golden gradients, honeycomb texture, sonic-resonance motifs, italic Fraunces headlines — a deliberate rebellion against clinical speech-tech aesthetics.

Status

In design — system + mocks complete

Learn More

Visit mellifluo.us or get in touch.

Contact