📞 Using Matlab to simulate Dual-Tone Multi-Frequency (DTMF) of telephone
A Java program to implement a DMTF Decoder.
An efficient way to implement FFT using Arduino
A TypeScript library for digital signal processing and audio analysis.
A real time frequency finder by reading the PCM input.
Turn a dead TWS earbud into a DIY Bluetooth data module for microcontrollers.
In this repository I store example scripts of some DSP algorithms made in MATLAB. These served an educational purpose when I wrote them, I'm making them public, since I had trouble finding example code.
calculate the coefficient k of Goertzel's algorithm
Using filtering techniques to smoothen hyper-sonic shockwave in MATLAB
A hack initially for Moderskeppet Gaming geek cruise, I managed to drive a telephone off a 9V battery and pick up the keypad tones as input to act as an Amiga joystick, allowing the TV classic Hugo game to be played as in the good old days. Project diary and cleanup to come.
MATLAB DTMF receiver with microphone input, Goertzel frequency analysis, temporal decoding, and noise-robustness evaluation.
Edge-first NILM: one bit-exact integer pipeline from CT clamps to appliance labels — open hardware rules, FPGA Q24 Goertzel engine, .nes replay format
MATLAB implementation of DSB-SC modulation and demodulation, including FFT analysis, coherent detection, LPF filtering, noise analysis, and DTMF detection.
Arduino-based device for detecting appliance beeps and sending a notification. Uses an Arduino Uno R4 WiFi, electret microphone, and Goertzel tone detection to identify beep patterns from appliances such as washers, dryers, or ovens.
Flutter acoustic modem. Why? Internet is expensive!
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