The many faces of distortion - Page 73 - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 15th December 2006, 10:31 PM   #721
diyAudio Member
 
Wavebourn's Avatar
 
Join Date: Sep 2006
Location: Pleasant Hill, CA
Send a message via Skype™ to Wavebourn
Quote:
Originally posted by MikeB
Okay, just listened to HF-content...

Here is a simple wave, fs=48khz, left channel is 20khz,right channel is 19khz.

http://www.lf-pro.net/mbittner/TestWave/beep.wav

The pure frequencies are not audible (for me), playing them both
results in a nicely audible 1khz-sinewave... (not subtile)

So much about HF-content not audible ? This seems to negate all
comments like "nobody hears distortions on 20khz signal" ?

If it's true that the ear is very able to "hear" that high frequencies,
keyparameters for amps should be quite different than they used to be ?

Mike
I hear both of them, as well as 1 KHz and noise (hiss)., I am around 50. Hearing 1 KHz through headphones not necessary means intedmodulation in amplifiers. It means our perception is non-linear.
R. Monroe back in 1960'th exploited this fact for brain activity stimulation, he used couple of tones, each reproduced in a different ear, that intermodulating produced infrasound than otherwise can't be heard from that headphones.
Contrary, some high end amplifiers sounding very realistic when measured show high level of intedmodulation distortions. It means, that we hear slight distortions wehh, but only when they differ from our own perception's distortions.
"Natural" distortions when present they are not perceived as distortions, they are perceived as higher loudness.

It is my theory that works perfectly.
__________________
The Devil is not so terrible as his math model is!
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Non Linear Distortion testing - Harmonic Distortion JMB Multi-Way 0 20th July 2004 02:54 PM
distortion of SW CAD III SkyChu Solid State 6 19th June 2004 08:11 AM
Fresh Faces on the moderator team planet10 Introductions 18 24th December 2002 02:53 PM


New To Site? Need Help?

All times are GMT. The time now is 06:31 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2