LiveMic: Real-Time Megaphone & Voice Amplifier,
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Key Features Implemented
Real-Time Mic-to-Speaker Audio Streaming:
Ultra-low latency audio processing pipeline via AudioRecord and AudioTrack (PCM 16-bit, 44.1 kHz).
Push-to-Talk (PTT) mode and continuous toggle broadcast mode with haptic feedback.
Real-time microphone boost gain (up to 300%) and master speaker output volume control.
Acoustic Feedback Protection:
Built-in Anti-Feedback Limiter that detects and automatically clamps high-frequency loopback screeching in real time.
Hardware Acoustic Echo Canceler (AEC) and Noise Suppressor (NS) chip integration.
Acoustic feedback prevention guide dialog explaining how to stream with zero feedback.
Audio Output Routing & Bluetooth:
One-tap routing between Phone Loudspeaker, Bluetooth Speakers/Headsets, and Wired AUX/Headphones.
Quick shortcut to Android Bluetooth Settings to pair external speakers or party boxes.
DSP Voice Presets & Effects Rack:
Bullhorn Megaphone: Bandpass filter with acoustic horn compression and overdrive distortion.Voice Booster: Vocal presence and high-shelf lift for speech projection and public speaking.
Echo & Reverb: Circular delay buffer with adjustable delay time (50–450 ms) and feedback decay (0–75%).
Studio Clean: High-fidelity transparent audio passthrough.
Robot FX: Carrier ring modulation for cybernetic voice effects.
Deep Voice: Subharmonic resonance and low-pass bass tuning.
3-Band Equalizer: Bass punch, Mid vocal presence, and Treble clarity tuning.
Live Waveform & VU Meter Visualizer:
Real-time dynamic audio waveform canvas responding directly to speech volume.
Segmented multi-color LED VU level meter with real-time dBFS readout and digital peak clipping indicator.
Megaphone Soundboard & Voice Looper:
Five synthesized emergency sirens and attention signals: Police Siren, Air Horn, Ding Chime, Alarm Klaxon, and Whistle.
Announcement Looper: Record voice announcements (up to 30s) and broadcast them on continuous loop like a rally or public address megaphone.
Background Audio Streaming & Adaptive Icon:
Foreground service with persistent notification and mute/stop quick controls.
Custom dark cyber studio adaptive icon with metallic microphone, neon cyan acoustic waves, and Bluetooth emblem.Waterfall Torrent,Storm Gale Wind,Ocean Waves & Surf,Heavy Rain Downpour,Thunder & Lightning