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VU Meters: Let's See 'Em!!

This power meter is a small web app running on a Raspberry Pi with a 7" screen. The data is sourced from CamillaDSP API, which I use as the crossover for my 2.2 audio system. One thing that really surprised me was how little power the amplifier needs to provide for the speakers to reach a comfortable listening volume.


I’m using the Fosi V3 Mono amps, and during a test with a 1kHz -20dB pulse, I measured 5.78V at the 8-ohm speaker terminals. That's 4.2W by my calculations, which was rather loud. I use this to align the decibel and watt scales.

The meter itself is a React component which ChatGPT o1-preview wrote after a couple of prompts. We are getting to the point where software development will be mostly asking the computer to do things, instead of telling it how to do it.
 
Hello VU-meter enthusiast friends,

Today I shared six new dancing video clips of my DIY-built 12-VU-Meter Array (IEC60268-17 compatible) together with all the on-screen Peak Meters of audio software tools while playing reference/sampler music tracks by JRiver MC, ADOBE Audition 3.0.1 and MusicScope 2.1.0;

New video clips of dancing 12-VU-Meter Array (IEC60268-17 compatible) together with all the on-screen Peak Meters of audio software tools while playing reference/sampler music tracks by JRiver MC, ADOBE Audition 3.0.1 and MusicScope 2.1.0:
____Part-1: using a typical reference/sampler music track suitable for high-Fq (treble) transient music sound
post #974 on my project thread

____Part-2: using a typical reference/sampler music track suitable for mainly checking and tuning of low Fq (bass) transient music sound as well as total tonality Fq-SPL balance all over 15 Hz to 22 kHz
post #975 on my project thread
 
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I love my Dorrough 280-E. Has a 60dB range and a digital input. Lets me see if any source is live or almost any file has SOMETHING on it.

It's fun to watch. On some CD's/files, it flashes angry red 0dBfs LEDs at the end of the scale.

New Desk Audio Setup.jpg
 
quigley down under laserdisc felt like VU meter earthquake in THX almost puts atmos 4k discs to shame

 
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