minimizing THD

[fpitas]

... and then doing a quick exit stage left... never to return back again!
Oh, Humanity!

Luckily, it's a trivial subject that any kid out of school can master.

 

[pseudoid]

Luckily, it's a trivial subject that any kid out of school can master.

Of course, you are talking about design of audio amplifiers for nil THD.
Someone earlier said it was but a six year project to 'learn the trade'.
In reality, I think 6 years of experience may get you to about 80dB.
The next 'decade' (-20dB) of improvement, may take about a whole decade!

 

[fpitas]

Of course, you are talking about design of audio amplifiers for nil THD.
Someone earlier said it was but a six year project to 'learn the trade'.
In reality, I think 6 years of experience may get you to about 80dB.
The next 'decade' (-20dB) of improvement, may take about a whole decade!

People spend their lives doing this. But now with the internet, it becomes a slap and a dash

 

[mhardy6647]

Of course, you are talking about design of audio amplifiers for nil THD.
Someone earlier said it was but a six year project to 'learn the trade'.
In reality, I think 6 years of experience may get you to about 80dB.
The next 'decade' (-20dB) of improvement, may take about a whole decade!

wait, you're not saying that the time required per decade increases exponentially, are you?
my head just exploded.

 

[Cbdb2]

Of course, you are talking about design of audio amplifiers for nil THD.
Someone earlier said it was but a six year project to 'learn the trade'.
In reality, I think 6 years of experience may get you to about 80dB.
The next 'decade' (-20dB) of improvement, may take about a whole decade!

These days there are some great books on the subject. Might be able to shave off a year or two.
One of the best: https://www.amazon.ca/Audio-Power-Amplifier-Design-Douglas/dp/0240526139

 

[thegeton]

When designing a high-fidelity audio amplifier, what are the key factors to consider for minimizing Total Harmonic Distortion (THD) and achieving low Intermodulation Distortion (IMD)?

Catfish, anyone?

 

[pseudoid]

wait, you're not saying that the time required per decade increases exponentially, are you?
my head just exploded.

I don't know why the exponential explosion but let's go to math [new/old/hybrid/pseudoid?]
6 years to achieve 80dB THD [some logarithms but no exponentials to cause explosions, yet!]
Including the Fudge FaKtor upon reaching the knee-of-curve [@6yrs... single-pole?], the next 4 years may only yield 20dB more finesse in improving THD figures.
6 + 4 = 10 years = 1 decade.
80 + 20 = 100dB

The next 'decade' (-20dB) of improvement, may take about a whole decade!

Now you are giving me a headache!

 

[mhardy6647]

I don't know why the exponential explosion but let's go to math [new/old/hybrid/pseudoid?]
6 years to achieve 80dB THD [some logarithms but no exponentials to cause explosions, yet!]
Including the Fudge FaKtor upon reaching the knee-of-curve [@6yrs... single-pole?], the next 4 years may only yield 20dB more finesse in improving THD figures.
6 + 4 = 10 years = 1 decade.
80 + 20 = 100dB

Now you are giving me a headache!

I'm tellin' ya, it's like folding a piece of paper in half.
One can only, practically speaking, do that so many times...

What stops a piece of paper from being folded more than seven times?

Nothing stops a piece of paper from being folded more than seven times if the paper is thin enough. Depending on the thickness and width of the pap...

www.wtamu.edu

How many times can you fold a piece of paper in half?

It's easy to fold a piece of paper in half once, twice or even three or four times. But what's the highest number of times one piece of paper can be folded in half?

www.livescience.com

That's the kind of thing that keeps me up at night.
... and, of course, things like this...

 

[mhardy6647]

This is a public service announcement with respect to post #46: most if not all catfish have venomous glands adjacent to spines on their pectoral fins.
Don't say I didn't warn ye.

 

[pseudoid]

This is a public service announcement with respect to post #46: most if not all catfish...

..whiskers also provide for electrostatic discharge, when properly affixed to the turntable ground reference.

 

[mhardy6647]

..whiskers also provide for electrostatic discharge, when properly affixed to the turntable ground reference.

I like your thinking!

 

[pseudoid]

I like your thinking!

Thank you for the misplaced compliment:

I am really just a bottom-sucker fish and I only feed-off the byproducts of (bigger and smarter) fish!
The brainiac was @thegeton for the post of the conceptual catfish.

 

[mhardy6647]

Plecostomus for the win!
Now... what's this thread about?

oh, yeah... THD