this OT discussion too.
Regards,
John K
From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On
Behalf Of Tomasz Kowalczyk
Sent: Thursday, 18 April 2019 04:04
To: neonixie-l
Subject: Re: [neonixie-l] OT: audio levels
W dniu wtorek, 16 kwietnia 2019 15:57:35 UTC+2
W dniu wtorek, 16 kwietnia 2019 15:57:35 UTC+2 użytkownik johnk napisał:
>
> Well, how do I say this Thomas?
>
> It is NOT to be called Watts RMS !
>
> They left the vital word out – it is Watts [RMS derived]. They left out
> “derived”.
>
>
>
> The RMS volts and RMS amps that you mention when
: [neonixie-l] OT: audio levels
W dniu piątek, 29 marca 2019 08:46:37 UTC+1 użytkownik charles napisał:
On 2019-03-28 10:09 p.m., johnk wrote:
based on teh RMS output (.707 of the peak)
That would be 0,707 (1/sqrt(2)) voltage output on a resistive load. RMS power
of a sine wave is 0,5 times
W dniu piątek, 29 marca 2019 08:46:37 UTC+1 użytkownik charles napisał:
>
> On 2019-03-28 10:09 p.m., johnk wrote:
>
> the FTC in the States started cracking down and said that any power
> claims had to be based on teh RMS output (.707 of the peak) using a sine
> wave with Specified
W dniu piątek, 29 marca 2019 08:46:37 UTC+1 użytkownik charles napisał:
>
> On 2019-03-28 10:09 p.m., johnk wrote:
> based on teh RMS output (.707 of the peak)
>
That would be 0,707 (1/sqrt(2)) voltage output on a resistive load. RMS
power of a sine wave is 0,5 times peak power.
I like to
On 2019-03-28 10:09 p.m., johnk wrote:
An aside: now that we are talking audio, I would love to get an argument going
about Watts RMS !
I say this: the watts specified for an amplifier output are intended to be
average power and not rms power.
Any takers?
I do recall that the merchants
s way. Even the respected name
companies use the W RMS term. So, how can I be right?
John K
Australia
-Original Message-
From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On
Behalf Of jb-electronics
Sent: Friday, 29 March 2019 03:09
To: neonixie-l@googlegroups.com
Subje
Hi David, hi John,
Thank you very much for your help! I am not trying to build a
professional VU meter; rather, what I want is to create a
microcontroller-based LM3916 alternative. These are now obsolete LED bar
driver ICs with a logarithmic output that are quite handy for building a
simple
Hey Jens...
1). Don't call it VU unless you match the actual ballistics of the ORIGINAL VU
meter
2). Europe tends to use a PPM [quasi-peak] system. Peak Program Meter.
3). Consumer and pro levels are very different. They are often misunderstood
and hence mounds of garbage appear on the web.
Expect 0.1 to 1V peak-peak, depending on volume.
On Wed, Mar 27, 2019, 6:11 PM jb-electronics
wrote:
> Hello Nixie friends,
>
> I am thinking of building a simple all-in-one VU meter using a
> microcontroller to visualize the audio signal on a headphone line (say,
> I feed the headphone output
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