02

Over-the-Air Acoustic Modem for Text Transmission

MATLAB acoustic modem that transmits text between two laptops using built-in speakers and microphones, with modulation, filtering, synchronization, and bit-level decoding.

Role
Primary Developer
Stack
MATLAB · DSP · Audio I/O · FIR Filtering
View full project →

Two-laptop trial

Received acoustic signal from the two-laptop transmission trial.
Recovered baseband waveform after demodulation and low-pass filtering.
MATLAB output showing HELLO WORLD recovered with zero full-frame and payload bit errors in the two-laptop trial.
010203040506

02

Over-the-Air Acoustic Modem for Text Transmission

MATLAB acoustic modem that transmits text between two laptops using built-in speakers and microphones, with modulation, filtering, synchronization, and bit-level decoding.

Role
Primary Developer
Stack
MATLAB · DSP · Audio I/O · FIR Filtering
View full project →

Two-laptop trial

Received acoustic signal from the two-laptop transmission trial.
Recovered baseband waveform after demodulation and low-pass filtering.
MATLAB output showing HELLO WORLD recovered with zero full-frame and payload bit errors in the two-laptop trial.