short, interesting (well, to me, ymmv) article about the original creation of vu meters:
https://hackaday.com/2018/08/09/the-vu-meter-and-how-it-got-that-way/
short, interesting (well, to me, ymmv) article about the original creation of vu meters:
https://hackaday.com/2018/08/09/the-vu-meter-and-how-it-got-that-way/