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Re: Sounded like Neal had a great idea until...
Murph #383534 10/01/12 06:29 PM
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He's wrong, it's the third one.


At least htat's my vote. :-P

Last edited by Ken.C; 10/01/12 06:30 PM.

I am the Doctor, and THIS... is my SPOON!
Re: Sounded like Neal had a great idea until...
ClubNeon #383537 10/01/12 06:47 PM
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Wow, that's a good demo of the sampling Chris.

To me, only track 2 seemed not quite as full as the others, which (1, 3, and 4) were pretty well, no, not pretty well, but in fact entirely indistinguishable to me.

Re: Sounded like Neal had a great idea until...
Murph #383538 10/01/12 06:55 PM
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I actually tried to make these worst case, so it'd be easiest to tell them apart. I'll make another challenge that's designed to be difficult this evening.


Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris
Re: Sounded like Neal had a great idea until...
Murph #383539 10/01/12 07:03 PM
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Oh, and PM me if you do want the answer.


Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris
Re: Sounded like Neal had a great idea until...
Murph #383540 10/01/12 07:03 PM
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I like that. We've got no consensus on which one is which, and you tell us this is the EASY one. Heh.


I am the Doctor, and THIS... is my SPOON!
Re: Sounded like Neal had a great idea until...
Murph #383541 10/01/12 07:09 PM
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Designed to be easy, from the track selection (those high pitched sounds should have been a give-away for poor compression), to the poor depth reduction. I really wanted to be able to hear the difference myself, but alas I couldn't.


Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris
Re: Sounded like Neal had a great idea until...
ClubNeon #383542 10/01/12 07:15 PM
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Originally Posted By: ClubNeon
In fact, here's a test I made for someone on another forum who was claiming to have golden ears...they never replied to me.

http://www.scuzzyeye.com/tests/track-01.wav
http://www.scuzzyeye.com/tests/track-02.wav
http://www.scuzzyeye.com/tests/track-03.wav
http://www.scuzzyeye.com/tests/track-04.wav

One of these files is the original 24-bit version. One has been truncated to 16-bit (not even dithered). One has been converted to a 320 kbps CBR MP3, and back into a 24-bit wave using MADplay. And another an "extreme" VBR MP3, then simply decoded with Lame to a 16-bit wave. They've all been padded back up to 24-bits, so the file sizes are the same.

Tell me which is which.

That was neat but listening to those made my ears ring.


"Those who preach the myths of audio are ignorant of truth."
Re: Sounded like Neal had a great idea until...
chesseroo #383545 10/01/12 08:19 PM
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But which made your ear feel golden before the ringing?


::::::: No disrespect to Axiom, but my favorite woofer is my yellow lab :::::::
Re: Sounded like Neal had a great idea until...
Murph #383546 10/01/12 10:51 PM
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I pick 4 then 3 as the best. Man we are all over he map wink


For every expert, there is an equal and opposite expert.
Re: Sounded like Neal had a great idea until...
Murph #383547 10/02/12 12:04 AM
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OK, the easy test is over. Time for the difficult one. This one is just about bit-depth, not lossy compression.

These files are longer, I wanted a full reference of dynamic ranges, since that's supposed to be what 24-bit gains over 16.

http://www.scuzzyeye.com/tests/track-b1.wav
http://www.scuzzyeye.com/tests/track-b2.wav
http://www.scuzzyeye.com/tests/track-b3.wav
http://www.scuzzyeye.com/tests/track-b4.wav
http://www.scuzzyeye.com/tests/track-b5.wav

Two of the files above are full 24-bit. The other three are dithered down to 16-bit with noise shaping. The 8 least significant bits are 0-filled so the files are all the same size. You challenge is to tell me which two files are 24-bit.

Before you had a 25% chance of guessing right, now it's only 10%. But if 24-bit really is that large of an improvement it shouldn't be difficult. smile


Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris
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