audio
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Class-D Automotive Audio Amplifier with Hi-Fi Audio Quality and Advanced Diagnostics for Compact Audio and Alerting Systems The HFDA801A from STMicroelectronics is a 2MHz switching pulse-width modulation (PWM) Class-D amplifier designed for compact, cost-effective automotive applications. This new ASIL-ready high-resolution audio amplifier from the company comes with a quad-bridge configuration. An integrated high-performance digital-to-analog converter (DAC) ensures hi-fi quality sound under any… |
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Fully Integrated Single-Chip Ethernet Audio Endpoint Controller for Vehicle Ethernet Audio Video Bridging (AVB) LAN9360 from Microchip is the recently released fully integrated AVB audio endpoint solution that helps in reducing development time and eliminates the need for stack integration and additional software and firmware development. This single-chip Ethernet controller with embedded protocols interconnects the infotainment devices of the vehicle such as speakers, amplifiers… |
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Instrumentation Amplifier Circuit using Op-Amp Almost all types of sensors and transducers convert real world parameters like light, temperature, weight etc into voltage values for our electronic systems to understand it. The variation in this voltage level will help us in analyzing/measuring the real world parameters, but in some applications like biomedical sensors this variation is very small (low-level signals) and… |
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DIY ESP32 Based Audio Player DIY Music players are fun to build, and we previously built a few music players using Arduino and a dedicated MP3 module. Now we are using the ESP32 speaker output to build an interesting audio player, in which you can add sound effects by just connecting an extra speaker to the ESP32. Here we will use LM386 and a speaker with ESP32 to play music files. The audio… |
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Simple Square wave to Sine Wave Converter A square wave to Sine wave converter circuit is an important analog circuit that converts square waveforms to sine waveforms. It has a broad spectrum of applications in many different areas of electronics, such as mathematical operations, acoustics, audio applications, inverters, power sources, function generators, etc. In this project, we will… |
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Speech Recognition using Arduino Speech recognition technology is very useful in automation which not only gives you hands free control over devices but also adds security to the system. Apart from making voice controlled gadgets, speech recognition also provides significant help to people suffering from various disabilities. In previous projects we built Arduino based Text to… |
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Audio Equalizer / Tone Control Circuit with Bass, Treble and MID Frequency Control using Op-Amp Tone control or Active equalizer circuit especially bass, treble, and MID control based Equalizer is an important circuit in audio amplifier design. Generally, three-stage active Equalizer filters require three control bass, treble, and MID. The bass control allows the low frequency to pass but blocks high frequency and the treble control allows the high frequency to pass… |
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Cough Detection System using Arduino 33 BLE Sense and Edge Impulse COVID19 is really a historic pandemic affecting the whole world very badly and people are building a lot of new devices to fight with it. We have also built an automatic sanitization machine and Thermal Gun for Contactless temperature screening. Today we will build one more device to help fighting with Coronavirus. It is a cough detection system, which can distinguish… |
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Voice Controlled FM Radio using Arduino and Google Assistant Nowadays, most of us like to listen to music, with our smartphones. But a few years back, this was not the case, at that point in time, FM radios were the first choice for listening to music, podcasts, news, and others. Nowadays nobody listens to the radio for music, news, and others, grandma and grandpa being an exception. So, to revive the old… |
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Digital Audio Volume Control Circuit using PT2258 IC and Arduino A potentiometer is a mechanical device using which one can set the resistance according to the desired value, thus changing the current passing through it. There exist many applications for a potentiometer, but mostly, a potentiometer is used as a volume controller for audio amplifiers. The digital volume control circuit is an electronic circuit that accurately adjusts… |
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Raspberry Pi Audio Amplifier HAT from Infineon for Active Speakers with Wireless Music Streaming Infineon Technologies AG has introduced a self-contained Raspberry Pi audio amplifier HAT (Hardware Attached on Top) board that offers high definition audio at boom box power levels in small form factors. The multi-level technology of the board delivers minimum size and consumption, state of the art power efficiency, and HD audio quality for Raspberry Pi users and makers.… |
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TT Electronics announces Wide Range of Pro-Audio Potentiometers with Customizable Options for Audio Industry TT Electronics has expanded its professional audio portfolio with the introduction of five rotary potentiometer families, four slide potentiometers families, and one encoder series. Ideal for a variety of applications found in the professional audio industry like electric guitars, amplifiers, mixers, drum machines, synthesizers, DJ equipment, recording studio controls, and… |
