Embedded Audio Processing Workflow
Technical overview of embedded audio processing and format conversion, covering PCM and G.711 paths, AAC/ADTS structure and fdk-aac encoding/porting guidance.
Consumer Electronics
SCTF Low Phase-Noise Clock Selection for Digital Audio
SCTF low phase-noise clock oscillator overview for digital audio systems: CN SMD packages, common audio frequencies, high stability, low jitter and phase-noise specifications.
LM4766 Specifications and Applications
LM4766 dual-channel audio power amplifier: 40W per channel, low distortion (≤0.1%), wide ±20–±35V supply range, 9 V/μs slew rate for high-fidelity designs.
Moving-Coil Loudspeaker Design and Structure
Technical overview of moving-coil loudspeakers: operation, cross-section components (voice coil, cone, suspension) and design trade-offs like resonance and Doppler.
Speech Recognition: Principles and Workflow
Comprehensive technical overview of speech recognition covering history, preprocessing, MFCC feature extraction, acoustic models (GMM/HMM, DNN), language models, and decoding.
Offline Voice Recognition with PT32Z192 Cortex-M3 MCU
Offline voice recognition solution on PT32Z192 Cortex-M3 MCU: hardware specs, high-sensitivity mic, TFT UI, playback options (voice chip or PWM), AI recognition library, schematics.
School Auditorium Sound System Optimization
Technical overview of school auditorium sound system design, covering components, loudspeaker selection, signal processing, amplification, tuning, installation, and maintenance.
Do Moving-Coil Loudspeakers Use Electromagnetic Induction?
Overview of moving-coil speaker structure and operation, detailing voice-coil, magnet and vibration system and the role of electromagnetic induction in sound conversion.
DVI Digital Video Interface Architecture
Technical overview of the DVI digital video interface: DVI-A/DVI-D/DVI-I variants, TMDS signaling, single/dual-link bandwidth, connector pinouts, cable length and legacy status.
