Active Noise Cancellation

What Affects the Sound Quality of Bluetooth Headphones? Key Parameters to Consider When Buying Bluetooth Headphones

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What Affects the Sound Quality of Bluetooth Headphones? Key Parameters to Consider When Buying Bluetooth Headphones

The quality of sound is not solely determined by Bluetooth transmission and sound reproduction; it is the result of multiple factors, including the audio source and surrounding environmental noise. When purchasing Bluetooth headphones, paying attention to parameters such as Bluetooth version, audio encoding format, driver type, noise cancellation type, and waterproof performance can help us … Read more

Are QCY AilyBuds Pro Bluetooth Earbuds Worth It? The Noise-Canceling King at 200 Yuan

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Are QCY AilyBuds Pro Bluetooth Earbuds Worth It? The Noise-Canceling King at 200 Yuan

Looking for a pair of Bluetooth earbuds that can cancel noise during commutes, stay in place while exercising, and have low latency for gaming? The QCY AilyBuds Pro might just make it onto your shortlist. This semi-in-ear headset truly embodies the concept of “getting great value for little money,” but how does it perform in … Read more

Understanding the Differences Between SNR and NSD in ADC/DAC

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Understanding the Differences Between SNR and NSD in ADC/DAC

In practical systems, signals are often interfered with by noise, resulting in noisy signals. Simply put, the Signal-to-Noise Ratio (SNR) is the ratio of signal power to noise power within a given signal bandwidth. Typically, this is calculated by performing a Fast Fourier Transform (FFT) and examining the fundamental signal power and the noise spectral … Read more

The Compact i9 Mini PC with Built-in Speakers and Microphone: A Revolution in Voice Interaction

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The Compact i9 Mini PC with Built-in Speakers and Microphone: A Revolution in Voice Interaction

When Dolby Atmos sound emanates from a metal cube the size of a palm, the entire geek community in Silicon Valley is left wondering: Is this really a mini PC? The latest release from ZOTAC, the SEi13 Pro, transforms a palm-sized computer into a smart terminal capable of speech and song with its built-in speakers … Read more

Why is Grounding Design Important for Circuits on PCBA?

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Why is Grounding Design Important for Circuits on PCBA?

“Grounding is considered a solution to many EMI issues. However, when grounding is done improperly, the chosen grounding scheme can become part of the problem. This article illustrates the issue of grounding coupling interference through simple examples.” 01 — Common Impedance Coupling According to Ampere’s law (the theoretical cornerstone of EMC grounding concepts – Maxwell’s … Read more

Introduction and Comparison of CAN, I2S, I2C, SPI, and SSP Buses

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Introduction and Comparison of CAN, I2S, I2C, SPI, and SSP Buses

1. SPI Bus The Serial Peripheral Interface (SPI) bus technology is a synchronous serial interface introduced by Motorola. Most MCUs (Microcontrollers) produced by Motorola, such as the 68 series MCUs, are equipped with SPI hardware interfaces. SPI is used for full-duplex, synchronous serial communication between the CPU and various peripheral devices. It can simultaneously transmit … Read more

Samsung Develops 600-Megapixel Sensor with 1/0.57-Inch Large Format

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Samsung Develops 600-Megapixel Sensor with 1/0.57-Inch Large Format

As smartphone manufacturers increasingly focus on camera capabilities, more and more companies are upgrading their imaging systems, which is most visibly reflected in the rising pixel counts of smartphone cameras.In this context, numerous suppliers have made significant breakthroughs. Recently, digital blogger @i冰宇宙 showcased an image indicating that Samsung has new ideas in camera module development.According … Read more