This circuit senses AC audio voltage supplied to the car-radio loudspeakers and displays it as power using a LED bar graph, achieving at the same time an attractive visual effect. It is designed to ...

This circuit uses two quad op-amps to form an eight LED audio level meter. The op-amp used in this particular circuit is the LM324. It is a popular IC and should be available from many parts stores.

Digital and analog worlds continue to collide as Cambridge Audio announced that it has extended the retro-cool digital VU meter update that its Evo streaming amplifiers are getting today to its ...

Depending on the music you’re listening to, watching a VU meter bounce to the music is always a good time. So why not integrate the VU meter right into the audio source? That’s what [Matikas] did, and ...

It used to be a must-have on any hi-fi, a pair of moving coil meters or LED bar graphs, the VU meter. Your 1980s boombox would have had them, for example. VU, for “Volume Units”, is a measure of audio ...

Juergen Grau has once again returned to Kickstarter to launch his Nixie IN-28 Dot tubes VU-Meter, under the Make 100 banner allowing those interested to help create a small production one of 100 units ...