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End of Sound
Embark on a journey through a project exploring data transmission over audio frequencies. From initial aspirations of 5 KB file transfers to intricate frequency configurations and speed optimizations, witness the triumphs and challenges of bridging data connectivity gaps with innovative approaches. Experience the quest for seamless audio-based data transfer firsthand. Read More
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Packet Recovery
In the latest progress, we successfully broadcasted packets with passing CRC checks. However, the final image was distorted, and our progress bar malfunctioned. We reworked the stream manager, but encountered issues with byte counts and packet headers. Despite these challenges, we made significant strides in packet re-request automation and progress bar functionality. Additionally, AI-generated image… Read More
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Channel Error Detection
I dedicated my day to enhancing data transfer by analyzing frequency usage. Through techniques like FHSS and waveforms such as square and sawtooth waves, I aimed for improved transmission speed and reliability. This involved exploring various modulation strategies and waveform types for optimal results. Read More
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Error Correction
The setup of Multi-Frequency Signaling in the app improved data-transfer speed, achieving 100 to 200 baud based on frequency spectrum, signal duration, and FFT size. Code configurations involved channel oscillators, bit transmission across channels, and error correction implementation. Challenges included signal stability and error rate optimization. Atari’s cassette drive provided insights into historical data-transfer methods. Read More
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Multi-Frequency Signaling
I successfully detected binary data in audio signals using FSK modulation. After exploring optimal frequencies and FFT sizes, I achieved a transfer rate of 450 baud. I employed Frequency Diversity and Spread Spectrum techniques for better reliability. Investigated touch-tone telephone frequencies and DTMF signals for modulation. Explored Nyquist Frequency and its impact on signal processing.… Read More