NorthSky
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Only $1000.
Rrrrrrrrrrr
Go buy a Fisher Price one for five bucks on eBay.
Only $1000.
Go buy a Fisher Price one for five bucks on eBay
Why don't you use them anymore, Ray; you found better ones, cuter, less noisy, ...?
Alright, how loud are we listening
Rrrrrrrrrrr
Go buy a Fisher Price one for five bucks on eBay.
Ray, that's not your daily average loudness level?
Is that from your speakers or your headphones?
To reach 67dB how many watts is that?
From your own system's volume knob (pot), which position on a clock would that be?
Is your volume control analog or digital?
Alright, how loud are we listening to, where on that dial are we turning up that volume control knob (potentiometer, volume attenuator)? How much break pedal (attenuation) are we releasing? What resistance is applied say when we are using normal power...less than 3 watts RMS? @ what average level are we listening to our music? What is the meter showing...0.3 watts? ...Little bit more...1.0 watts? It depends, passive or active listening...background music or front end serious music.
...From a normal stereo preamp, from a headphone amp.
@ low volume level listening we usually measure larger amount of THD.
And the more we crank the volume up the distortion level decreases, up to the power amp limit, where the distortion rises abruptly and clips.
With a quality amp the level of THD is low from 0.001 watts to say 5 watts.
Some amps have larger level of THD @ very low power...say less than 3 watts.
Using a quality amp, how much influence a volume pot can have on the sound output...measurable distortion level? Are there better potentiometers with less measured distortion, and if yes, what are the best ones and why are they measuring better?
Everything we want to analyze is analog. Don't care what happens upstream. We want to know what the analog signal is doing. The AP digitizes this analog signal and then processes it in software.AP is old instrument initial for analog circuits, with some digital features.
"Much less" is only words, not measurements.DACs that we deal with are multibit so limit cycles are much less of a problem with them
Like you said, that is only words, not measurements. You are not showing what the Audio Precision analyzer can do. So let's set the conditions similar to yours and compare:"Much less" is only words, not measurements.
IMHO we need true SAR ADC (no missing codes, without noise shaping) + Eye Diagram with meander signals, this is instrumental method vs. AK5394+FFT in AP.
https://www.diyaudio.com/forums/equ...rformance-audio-adc-project-ltc2380-24-a.html
My first (green) picture relating to fifth order sigma-delta modulator.