iOSEchoDemo

iOS Echo Demo

ASR → TTS echo pipeline. Speak and hear it back.

• Device: Parakeet ASR + Kokoro TTS (CoreML E2E)
• Simulator: Parakeet ASR + Apple built-in TTS

Setup

cd Examples/iOSEchoDemo
xcodegen generate
open iOSEchoDemo.xcodeproj

Set your signing team in Xcode, build and run.

Models (~500 MB) download from HuggingFace on first launch.

Features

• Voice activity detection (Silero VAD)
• Force-cut at 5s with system message
• Adaptive echo prevention (cooldown based on TTS audio duration)
• Diagnostics view (CPU, memory, VAD level)