An mp3 player in the form of a cassette that works in a cassette player or as a portable player with the addition of headphones.
iPods are making a comeback, but theyβre getting harder to find, so I decided to build my own.
Portable system for monitoring emotional state and concentration in interviews based on multi-modal fusion of visual and audio data
With a low-cost ESP32 and WM8960, we built a complete real-time stereo parametric EQ with professional-style controls and presets.
Play a song on your Mac and the NU40 DK's OLED shows the current lyric line and bouncing music bars, or a figure copying your dance.
An 8-song music player built on RT-Spark with FreeRTOS, LCD song display, physical controls, RGB LEDs, and adjustable volume.
A Pi 4 and a cheap USB mic tell dialogue from explosions with an on-device voice model, then click your TV's volume over Wi-Fi or IR.
Open-source DAB+/FM receiver with a SigmaDSP and aptX Adaptive Bluetooth output. ESP32-S3, Si4684, ADAU1701, 6-layer PCB.
Walk through a recorder export with a local Python inventory and a reproducible byte-layout example.
Can an AI coding agent build software that has to work in the physical world?
MicroPython music player on W55MH32: SD-card WAV songs, matching album art on SPI monitor, progress bar, next/pause buttons, I2S audio.
Explore voltage-controlled analog audio with the Analog Devices SSM2018S VCA and an Arduino-compatible controller.
Explore Samsung TV audio amplifier built around TAS5749M by tracing its circuitry and turning a discarded board into reusable audio platform
A Mac script splits any song into 4 frequency bands so the NU40 DK's 4 onboard LEDs flash to the beat. No extra parts needed.
This experiment clearly shows how much the enclosure can influence the sound of even a tiny and inexpensive full-range driver.
Designed for pure music listening experience with a beautifully crafted, responsive, touch-optimized user interface.
Simple Audio Spectrum Analyzer with multiple adjustable display, speed, and sensitivity modes for a customizable audio visualization
Using the LVGL library and SquareLine Studio, I created a visualization that is not only functional, but also enriches any audio system
A Raspberry Pi HAT with a 15-band hardware EQ and browser control β no app, account, or cloud required.
Hardware rejected playback, so I visualized it. A hyper-responsive micro:bit v2 VU meter built on Zephyr RTOS with custom ADC logic.
Class D amplifier with a good performance and better sound quality. We can call it a Class D with Class A specs.
The simplest way to make a relatively powerful stereo Vacuum Tube audio amplifier with components that are easily available.
In this project I will share. Own designed video player. With this project you can playback your video with sound in esp32 dev board
This ECC83 (12AX7) preamplifier project successfully delivers the warm, pleasant, and dynamic sound characteristic of vacuum tubes.
