How kareemmas3ud/dsp-adaptive-pcm-audio-transmission-system works
This MATLAB project simulates PCM-style audio transmission from input preparation through modulation, channel impairment, and receiver recovery, with DSP analysis and verification. The README documents these stages and their signal flow; the tree contains one MATLAB script and two audio files. Since no source excerpt was available, the graph reflects documented relationships only and uses the script path for its conceptual processing stages.
Main entry points: digital_comm_system.m Initialize and Resample · recording.wav Recording Audio · handel.wav Handel Audio
Components 18
Input Analysis
- Recording Audio
Code and Audio/recording.wav - Handel Audio
Code and Audio/handel.wav - Initialize and Resample
Code and Audio/digital_comm_system.m - Spectral Analysis
Code and Audio/digital_comm_system.m
Transmitter
- Anti-Alias Filter
Code and Audio/digital_comm_system.m - AM Modulation
Code and Audio/digital_comm_system.m
Channel
- Multipath Fading
Code and Audio/digital_comm_system.m - Tone Interference
Code and Audio/digital_comm_system.m - AWGN Noise
Code and Audio/digital_comm_system.m
Receiver
- Band-Pass Filter
Code and Audio/digital_comm_system.m - Notch Filter
Code and Audio/digital_comm_system.m - Demodulation
Code and Audio/digital_comm_system.m - Recovery Filter
Code and Audio/digital_comm_system.m
Verification
- Filter Analysis
Code and Audio/digital_comm_system.m - System Verification
Code and Audio/digital_comm_system.m
Other components
- Audio Input
- handel Signal
- Recovered Audio
Connections 19
- Audio Input → Initialize and Resample: provides audio
- handel Signal → Initialize and Resample: provides signal
- Recording Audio → Initialize and Resample: provides audio
- Handel Audio → Initialize and Resample: provides audio
- Initialize and Resample → Spectral Analysis: analyzes signal
- Initialize and Resample → Anti-Alias Filter: passes baseband
- Anti-Alias Filter → AM Modulation: filtered signal
- AM Modulation → Multipath Fading: transmits signal
- Multipath Fading → Tone Interference: adds echoes
- Tone Interference → AWGN Noise: adds tone
- AWGN Noise → Band-Pass Filter: received signal
- Band-Pass Filter → Notch Filter: filters passband
- Notch Filter → Demodulation: removes tone
- Demodulation → Recovery Filter: demodulates
- Recovery Filter → Recovered Audio: recovers audio
- Anti-Alias Filter → Filter Analysis: analyzes filter
- Band-Pass Filter → Filter Analysis: analyzes filter
- Recovery Filter → Filter Analysis: analyzes filter
- Filter Analysis → System Verification: supports checks