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Skeptico Saloon: An Objectivist Joint - Page 47  

post #691 of 1671
Quote:
Originally Posted by bigshot View Post
 

 

Dynamic compression and hot mastering are two completely different things. One moves all of the sound into a narrower range, the other chops the whole top off in clipping.


that!

I actually happen to like having a few albums with low dynamic range because it's nice for quiet listenings. but it has nothing to do with all the bass choping "let your brain recreate the missing part so it will feel like it goes to 11" and other clipping nonsense.

voices are usually compressed, it has nothing to do with loudness war. dynamic tweaking doesn't always mean loudness war.

post #692 of 1671
Anyone interested in comparing the Ultimate Ears UE700 and later maybe the UERM against mysterious cheapo IEMs I will modify with digital signal processing?
http://www.head-fi.org/t/672716/the-999-vs-99-challenge-tour/480#post_10499325
post #693 of 1671
Quote:
Originally Posted by Joe Bloggs View Post

Anyone interested in comparing the Ultimate Ears UE700 and later maybe the UERM against mysterious cheapo IEMs I will modify with digital signal processing?
http://www.head-fi.org/t/672716/the-999-vs-99-challenge-tour/480#post_10499325

In interested.  :L3000:

post #694 of 1671
Quote:
Originally Posted by SilverEars View Post

In interested.  L3000.gif

You would need to post in that $999 vs 99 thread itself to apply wink.gif
post #695 of 1671
Quote:
Originally Posted by bigshot View Post
 

 

Dynamic compression and hot mastering are two completely different things. One moves all of the sound into a narrower range, the other chops the whole top off in clipping.

It seems that the results shows that people can notice 8db of DR difference instead of 2....?

post #696 of 1671

What do you think about this usb signal cleaner?  :L3000:  Discussion related to oscillator timing and jitter.

 

http://www.ifi-audio.com/en/iPurifier.html

 

Here is the discussion on it

http://www.head-fi.org/t/683778/350cad-herus-asynchronous-usb-audio-2-0-24bit-352-8ks-s-dxd-and-dsd64-128-2-4vrms-headphone-dac/135

 


Edited by SilverEars - 5/4/14 at 1:04pm
post #697 of 1671

Looks like a great way for that company to scam people out of their money.

post #698 of 1671
Quote:
Originally Posted by SilverEars View Post
 

What do you think about this usb signal cleaner?  :L3000:  Discussion related to oscillator timing and jitter.

 

http://www.ifi-audio.com/en/iPurifier.html

 

Here is the discussion on it

http://www.head-fi.org/t/683778/350cad-herus-asynchronous-usb-audio-2-0-24bit-352-8ks-s-dxd-and-dsd64-128-2-4vrms-headphone-dac/135

 

why buy one when you can remove EMI completely with only 8 Ipurererers! 8*5=40 no EMI!!!! eureka!!!

:deadhorse:

but I'm at a loss when it comes to the process, does it trap the EMI on the rest of the USB cable with invisible hands? or does it scare them away with it's revolutionary aluminum? I imagine the EMI trying to get through the first 6.2cm of the Ipurifiererer, slowly losing hope and then giving up on the usb cable plugged after it. psychological attrition.

 

it does "nothing", so well that you can use it with any sample rate! another great feature obviously.

 

so what is it? a 80ohm resistor in aluminum casing?

post #699 of 1671

39dB of EMI turned into 34dB IMMEDIATELY!

post #700 of 1671
Quote:
Originally Posted by castleofargh View Post
 

why buy one when you can remove EMI completely with only 8 Ipurererers! 8*5=40 no EMI!!!! eureka!!!

:deadhorse:

but I'm at a loss when it comes to the process, does it trap the EMI on the rest of the USB cable with invisible hands? or does it scare them away with it's revolutionary aluminum? I imagine the EMI trying to get through the first 6.2cm of the Ipurifiererer, slowly losing hope and then giving up on the usb cable plugged after it. psychological attrition.

 

it does "nothing", so well that you can use it with any sample rate! another great feature obviously.

 

so what is it? a 80ohm resistor in aluminum casing?


Well if they measured field strength of the EMI I wondered if plugging the device in and measuring at the end of the device wouldn't drop the field strength just from being further away.  I don't know how they measured, but this might be it.  They mention EMI at the end of the USB.  So there may be nothing in there other than distance. 

post #701 of 1671

Must be deus ex machina, removing random jitter and all that.
A genuine question:

I get very audible noise when I was still using a sensitive 32ohm headphone plugged straight into my computer's onboard soundcard when NO music is playing.
Was I listening to the noise inherent in the audio chip or was all the "EMI" from other computer components being captured by the audio chip like an antenna?


Edited by anthk - 5/5/14 at 12:14am
post #702 of 1671
Quote:
Originally Posted by anthk View Post

Must be deus ex machina, removing random jitter and all that.

A genuine question:
I get very audible noise when I was still using a sensitive 32ohm headphone plugged straight into my computer's onboard soundcard when NO music is playing.

Was I listening to the noise inherent in the audio chip or was all the "EMI" from other computer components being captured by the audio chip like an antenna?

Could be either, either way, your sound card does not have adequate noise rejection, or its amp section produces too much noise, or some combination of both. If it's a steady white noise it's more likely to be the amp itself, if the noise is "patterned" it's interference.
post #703 of 1671
Quote:
Originally Posted by anthk View Post
 

Must be deus ex machina, removing random jitter and all that.
A genuine question:

I get very audible noise when I was still using a sensitive 32ohm headphone plugged straight into my computer's onboard soundcard when NO music is playing.
Was I listening to the noise inherent in the audio chip or was all the "EMI" from other computer components being captured by the audio chip like an antenna?


My laptop did this. It drove me nuts when I used my HD 280. With their sound isolation and sensitivity, the laptops headphone amp noise bugged the snot out of me. When I mute the volume, the headphone amp is turned completely off and the noise goes away----that was the amp noise. WHen I loaded programs, copied files, used internet, etc..., I was rewarded with extra hissing----that was interference.

 

My solution was to buy a standalone dac and an amp. If you're using a desktop, you might replace the sound card, or you may need a better, cleaner power supply (or you might have another component that's creating a lot of noise, like a graphics card or a failing fan)

 

Cheers

post #704 of 1671

Delete..


Edited by SilverEars - 5/10/14 at 7:24pm
post #705 of 1671

Ok something hilarious going on in one of the forum sections regarding coaxial vs optical.  I wanted to interject, but didn't want to break their flow of cool discoveries.  :D

 

So basically what it is a portable music player supposedly has a coaxial output and optical, and there was a debate on one sounds better than the other to an external DAC. To me those two signals shouldn't make a difference so I thought it was silly, but hey maybe there is something different about the demodulation process for two types of signals?  Any, they say it's audible.  So..


Edited by SilverEars - 5/11/14 at 8:35pm
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