In this article, we’ll look at general concepts and some design details for a circuit board that can output a wide variety of analog signals.
In this article, we’ll look at general concepts and some design details for a circuit board that can output a wide variety of analog signals.
This article will review some basic structures to implement Finite Impulse Response (FIR) filters.
This article will review some basic structures to implement Finite Impulse Response (FIR) filters.
This article provides detailed information on sampling audio signals and transferring the data to a PC for analysis.
This article provides detailed information on sampling audio signals and transferring the data to a PC for analysis.
This article introduces the analog-to-digital conversion required to compress speech for transmission across telephone systems.
This article introduces the analog-to-digital conversion required to compress speech for transmission across telephone systems.
In this article, we’ll look at a fairly straightforward circuit that enables a robot or other device to detect sound.
In this article, we’ll look at a fairly straightforward circuit that enables a robot or other device to detect sound.
This project uses a C8051 microcontroller development kit, an accelerometer evaluation board, and Simplicity Studio…
This project uses a C8051 microcontroller development kit, an accelerometer evaluation board, and Simplicity Studio IDE—all from Silicon Labs—to rather quickly and easily build a motion-detecting alarm system.
This article will review the basics of the decimation-in-time FFT algorithms.
This article will review the basics of the decimation-in-time FFT algorithms.
Use Adafruit's Circuit Playground to make your own fruity (drum) loops!
Use Adafruit's Circuit Playground to make your own fruity (drum) loops!
This article presents an overview of various applications which exploit convolution, an advanced signal operation.
This article presents an overview of various applications which exploit convolution, an advanced signal operation.
Be the spectacle at this summer's music festival with these sound activated rave goggles!
Be the spectacle at this summer's music festival with these sound activated rave goggles!
This project uses the Alorium Technology XLR8, a Bluetooth LE HID Implementation, and the EasyVR voice recognition module…
This project uses the Alorium Technology XLR8, a Bluetooth LE HID Implementation, and the EasyVR voice recognition module to add voice-activated movements to your next project.
Learn about the basics of audio electronics, which convert sound signals into electrical signals, process these…
Learn about the basics of audio electronics, which convert sound signals into electrical signals, process these electrical signals, and convert them back into sound.
Harmonic distortion can be introduced to audio amplifiers from many sources but reduced to levels below the threshold of…
Harmonic distortion can be introduced to audio amplifiers from many sources but reduced to levels below the threshold of human hearing.
THD of an audio system can be easily measured, but because the ultimate output of an audio system is a sound for humans…
THD of an audio system can be easily measured, but because the ultimate output of an audio system is a sound for humans to hear, human perception plays a role in determining what to do about THD.
You can do a lot with ultrasound, and whatever you’re doing will be easier with a highly integrated IC such as the PGA460-Q1.
You can do a lot with ultrasound, and whatever you’re doing will be easier with a highly integrated IC such as the PGA460-Q1.
This article describes the cause and effect of total harmonic distortion (THD) in power systems. Some means of improving…
This article describes the cause and effect of total harmonic distortion (THD) in power systems. Some means of improving THD are also discussed.
This article will help the reader understand the different types of power semiconductors: how they work, their key…
This article will help the reader understand the different types of power semiconductors: how they work, their key parameters, and trade-offs.
Total harmonic distortion (THD) is a measurement that tells you how much of the distortion of a voltage or current is due…
Total harmonic distortion (THD) is a measurement that tells you how much of the distortion of a voltage or current is due to harmonics in the signal.
This technical brief explains the physical characteristics and the benefits of microphones based on MEMS technology.
This technical brief explains the physical characteristics and the benefits of microphones based on MEMS technology.
Learn how to listen to frequencies on the air with nothing more than a USB dongle: first FM radio, then voice signals.
Learn how to listen to frequencies on the air with nothing more than a USB dongle: first FM radio, then voice signals.
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