iOS and iPadOS 15 bring a number of nice improvements to FaceTime, including some new audio modes that may come in handy in certain situations. The new wide spectrum audio is one you might want to use ...

Here is an audio spectrum analyzer project using an SG12232C GLCD module and based on Atmel ATmega8 microcontroller. The graphic LCD displays both audio waveform in real time and FFT (Fast Fourier ...

An AVR ATmega8 microcontroller and an operational amplifier is used to build this spectrum analyzer which can improve the audio quality of an equipment. A variety of displays are supported by the AVR ...