"Official" Audyssey thread (FAQ in post #51779) - Page 2386 - AVS Forum | Home Theater Discussions And Reviews
Forum Jump: 
 3496Likes
 
Thread Tools
post #71551 of 79637 Old 06-21-2014, 11:13 PM
AVS Forum Special Member
 
jlpowell84's Avatar
 
Join Date: Dec 2012
Location: Eugene, OR
Posts: 6,987
Mentioned: 89 Post(s)
Tagged: 0 Thread(s)
Quoted: 1941 Post(s)
Liked: 915
smal DB differences in my bass department when fluctuating my house curve via mini DSP in live time on the fly are very noticeable. This thread is just plain crazy though. Haven't been here in awhile and I guess I picked the wrong time to come back :/

JLPowell84's Room
FTW21 Ported Build
Spoiler!
jlpowell84 is offline  
Sponsored Links
Advertisement
 
post #71552 of 79637 Old 06-22-2014, 01:18 AM
kbarnes701 is offline  
post #71553 of 79637 Old 06-22-2014, 02:53 AM
Super Moderator
 
markrubin's Avatar
 
Join Date: May 2001
Location: Jersey Shore
Posts: 20,156
Mentioned: 27 Post(s)
Tagged: 0 Thread(s)
Quoted: 1299 Post(s)
Liked: 2790
time to move on please

thanks

please take the high road in every post:do not respond to or quote a problematic post: report it
HDMI.org:what a mess this is a red flag issue
HDCP = Hollywood's Draconian Copy Protection system
Test Reports HDMI Cables that support 18GBPS&HDMI 2.0b
markrubin is offline  
 
post #71554 of 79637 Old 06-22-2014, 05:18 AM
AVS Forum Special Member
 
IgorZep's Avatar
 
Join Date: Sep 2012
Posts: 1,004
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 395 Post(s)
Liked: 190
Quote:
Originally Posted by mogorf View Post
Some members do not introduce unnecessary phase differences to their systems
Don't you? Do you listen exclusively full range speakers, no crossovers, no ported designs, etc.? I doubt it! The phase knob on the sub does no more harm than those things do.
IgorZep is offline  
post #71555 of 79637 Old 06-22-2014, 05:27 AM
AVS Forum Special Member
 
IgorZep's Avatar
 
Join Date: Sep 2012
Posts: 1,004
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 395 Post(s)
Liked: 190
Quote:
Originally Posted by mogorf View Post
Today I asked my son (22 old) to sit at the MLP and close his eyes while I play music and used the remote to adjust Master Volume up and down by 2 dB. Guess what, he asked me: are you doing anything with that remote?

Why not do your own test and report back, please.
Incorrect experiment. Give him A/B control and ask what is what - he will be able to find it out!

My own test: connected two speakers to amps with different (unknown) gain. Level align by ear on music content within 0.5dB precision. Measure. Perfect match! I don't pretend my hearing is anything above average.
IgorZep is offline  
post #71556 of 79637 Old 06-22-2014, 07:55 AM
AVS Forum Special Member
 
mogorf's Avatar
 
Join Date: May 2009
Location: Budapest, Hungary
Posts: 5,610
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 1127 Post(s)
Liked: 723
Quote:
Originally Posted by IgorZep View Post
Incorrect experiment.
I don't see anything incorrect in that experiment. But if you do care to share it?
mogorf is online now  
post #71557 of 79637 Old 06-22-2014, 08:08 AM
AVS Forum Special Member
 
IgorZep's Avatar
 
Join Date: Sep 2012
Posts: 1,004
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 395 Post(s)
Liked: 190
Quote:
Originally Posted by mogorf View Post
I don't see anything incorrect in that experiment. But if you do care to share it?
It doesn't tell if the difference is audible or not. Even if he can spot the difference he cannot tell is it because of you changing the volume, the recording, or the musicians playing. Too many variables. Fix everything else, leave only one variable. Or elsewhere I don't know what are you are trying to measure / prove... It is definitely not the audibility between different loudness levels.
IgorZep is offline  
post #71558 of 79637 Old 06-22-2014, 08:19 AM
AVS Forum Special Member
 
mogorf's Avatar
 
Join Date: May 2009
Location: Budapest, Hungary
Posts: 5,610
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 1127 Post(s)
Liked: 723
Quote:
Originally Posted by IgorZep View Post
It doesn't tell if the difference is audible or not. Even if he can spot the difference he cannot tell is it because of you changing the volume, the recording, or the musicians playing. Too many variables. Fix everything else, leave only one variable. Or elsewhere I don't know what are you are trying to measure / prove... It is definitely not the audibility between different loudness levels.
You would be absolutely right if all those variables kick-in at the same time, but I was playing music with low dynamic range (no Beethoven ) so the only variable was me with remote in hand. No need to complicate a simple everyday test. Wouldn't even call it an experiment.
mogorf is online now  
post #71559 of 79637 Old 06-22-2014, 08:36 AM
AVS Forum Special Member
 
IgorZep's Avatar
 
Join Date: Sep 2012
Posts: 1,004
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 395 Post(s)
Liked: 190
Quote:
Originally Posted by mogorf View Post
You would be absolutely right if all those variables kick-in at the same time
They are!

Quote:
Originally Posted by mogorf View Post
Wouldn't even call it an experiment.
Q.E.D.
IgorZep is offline  
post #71560 of 79637 Old 06-22-2014, 02:29 PM
Member
 
jjazdk's Avatar
 
Join Date: Nov 2013
Location: Denmark
Posts: 108
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 34 Post(s)
Liked: 88
Quote:
Originally Posted by mogorf View Post
Prove it please. Prepare 4 audio files that we can download.

1. "As is" with a flat response.
2. The other 3 with filters set as per your graphs.
3. MP3 is ok.
4. Use file names that don't correspond to which is which!

Lookin' forward to the test.
Here you go..
http://www.jjaz.dk/privat/AVS/test.zip

One of the filters may not be that easy to identify on this particular piece of music, but it is easy to hear that something changed. At least I can easily spot them on my PC speakers.
primetimeguy and kbarnes701 like this.

Source: HTPC with JRiver
Pre: Focusrite Scarlett18i20 + 2 channel DAC
PA: April Music Stello S200 (GD1 >130Hz), 2x ICEpower 1000ASP (GD1 <130Hz), 2x ICEpower ASP1000 (Subs), Marantz MM8077 (Rear+Center+Back)
Spkr: GD1 (Front), GDA125 (2xRear+1xBack), GDA Center (Center)
Subs: 4 towers, a total of 28 x 10" 25W ScanSpeak

Last edited by jjazdk; 06-22-2014 at 03:02 PM.
jjazdk is offline  
post #71561 of 79637 Old 06-22-2014, 02:44 PM
AVS Forum Special Member
 
jlpowell84's Avatar
 
Join Date: Dec 2012
Location: Eugene, OR
Posts: 6,987
Mentioned: 89 Post(s)
Tagged: 0 Thread(s)
Quoted: 1941 Post(s)
Liked: 915
Quote:
Originally Posted by jjazdk View Post
Here you go..
http://http://www.jjaz.dk/privat/AVS/test.zip

One of the filters may not be that easy to identify on this particular piece of music, but it is easy to hear that something changed. At least I can easily spot them on my PC speakers.
I want to try but link is not working for me

JLPowell84's Room
FTW21 Ported Build
Spoiler!
jlpowell84 is offline  
post #71562 of 79637 Old 06-22-2014, 02:50 PM
AVS Forum Special Member
 
mogorf's Avatar
 
Join Date: May 2009
Location: Budapest, Hungary
Posts: 5,610
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 1127 Post(s)
Liked: 723
Quote:
Originally Posted by jlpowell84 View Post
I want to try but link is not working for me

Delete the double http and start from www.

Now it works for me.
mogorf is online now  
post #71563 of 79637 Old 06-22-2014, 03:07 PM
AVS Forum Special Member
 
mogorf's Avatar
 
Join Date: May 2009
Location: Budapest, Hungary
Posts: 5,610
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 1127 Post(s)
Liked: 723
Quote:
Originally Posted by jjazdk View Post
Here you go..
http://www.jjaz.dk/privat/AVS/test.zip

One of the filters may not be that easy to identify on this particular piece of music, but it is easy to hear that something changed. At least I can easily spot them on my PC speakers.
Thanks jj for taking your time to prepare the files. Appreciate it. I'll come back to you tomorrow, coz its already too late here to crank up the volume on the HT.

Thanks again.
mogorf is online now  
post #71564 of 79637 Old 06-22-2014, 03:53 PM
RUR
Innocent Bystander
 
RUR's Avatar
 
Join Date: Feb 2007
Location: California Republic
Posts: 2,690
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 406 Post(s)
Liked: 307
Quote:
Originally Posted by jjazdk View Post
Here you go..
http://www.jjaz.dk/privat/AVS/test.zip

One of the filters may not be that easy to identify on this particular piece of music, but it is easy to hear that something changed. At least I can easily spot them on my PC speakers.
Thanks for doing this, if only for sanity's sake. Predictably, they sound very different. Is the extra file flat or ??? There were only three curves in your OP #71505.
RUR is offline  
post #71565 of 79637 Old 06-22-2014, 05:15 PM
AVS Forum Special Member
 
jlpowell84's Avatar
 
Join Date: Dec 2012
Location: Eugene, OR
Posts: 6,987
Mentioned: 89 Post(s)
Tagged: 0 Thread(s)
Quoted: 1941 Post(s)
Liked: 915
Quote:
Originally Posted by jjazdk View Post
Here you go..
http://www.jjaz.dk/privat/AVS/test.zip

One of the filters may not be that easy to identify on this particular piece of music, but it is easy to hear that something changed. At least I can easily spot them on my PC speakers.
Ok, definitely a noticeable difference. I tried PLIIX Music with LCR JTR Triple 8's and dual Seaton Submersives on sub duty.

If you are going to try this test. You should try this test!!! Do not go down to my results. Rather download very quickly and run through with a pen to take a couple notes on your guesses. Then come back and compare.








Track labeled "ORG" I am guessing is the original un modified track.
Track Labled "27" I am guessing had low bass and mid bass cut.
Track Labled "43" I am guessing had the low bass and mid bass boosted.
Track Labled "79" I am guessing had the upper treble range boosted.

Other takers would be very interesting.

JLPowell84's Room
FTW21 Ported Build
Spoiler!
jlpowell84 is offline  
post #71566 of 79637 Old 06-22-2014, 05:17 PM
AVS Forum Special Member
 
jlpowell84's Avatar
 
Join Date: Dec 2012
Location: Eugene, OR
Posts: 6,987
Mentioned: 89 Post(s)
Tagged: 0 Thread(s)
Quoted: 1941 Post(s)
Liked: 915
Quote:
Originally Posted by mogorf View Post
Delete the double http and start from www.

Now it works for me.
Did you listen? I can very easily hear the differences. And feel too at high volumes with dual Submersives
kbarnes701 likes this.

JLPowell84's Room
FTW21 Ported Build
Spoiler!
jlpowell84 is offline  
post #71567 of 79637 Old 06-23-2014, 05:51 AM
AVS Forum Special Member
 
joehonest's Avatar
 
Join Date: May 2011
Posts: 1,029
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 101 Post(s)
Liked: 42
Quote:
Originally Posted by jlpowell84 View Post
Ok, definitely a noticeable difference. I tried PLIIX Music with LCR JTR Triple 8's and dual Seaton Submersives on sub duty.

If you are going to try this test. You should try this test!!! Do not go down to my results. Rather download very quickly and run through with a pen to take a couple notes on your guesses. Then come back and compare.
Track labeled "ORG" I am guessing is the original un modified track.
Track Labled "27" I am guessing had low bass and mid bass cut.
Track Labled "43" I am guessing had the low bass and mid bass boosted.
Track Labled "79" I am guessing had the upper treble range boosted.
Other takers would be very interesting.
Track Labled "79" I am guessing had the upper treble range boosted.
No doubt about this one, easy !

Track Labled "43" I am guessing had the low bass and mid bass boosted
I like this very much, very smooth across sound stage on a pc 2.1 system

Track Labled "27" I am guessing had low bass and mid bass cut.
Did not move me, sounds out of phase to me, if I was to label it anything.

I haven't played these on my HT, just my 2.1 pc deck top system!
Yes there is no doubt these sound files have mods from one another.
Will do later,to early now..

Last edited by joehonest; 06-23-2014 at 06:23 AM.
joehonest is offline  
post #71568 of 79637 Old 06-23-2014, 08:41 AM
AVS Forum Special Member
 
mogorf's Avatar
 
Join Date: May 2009
Location: Budapest, Hungary
Posts: 5,610
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 1127 Post(s)
Liked: 723
Quote:
Originally Posted by jjazdk View Post
Just did my listening tests as follows:

MV: -10 dB (RLO: 0 dB)
MultEQ (Audyssey flat)+ DEQ on, DynVol off.
Dolby PLII Music mode


Among the 4 files I can only hear a tad bit of difference with "43". That one seems to be the one with the LF boost. The other 3 files sound pretty much the same for me even after repeated listenings. Please don't forget these ears are already 57 years old!

Will be looking forward to other members' listening tests. It's interesting.

Thanks jj again.
mogorf is online now  
post #71569 of 79637 Old 06-23-2014, 10:07 AM
AVS Forum Club Gold
 
sdrucker's Avatar
 
Join Date: Feb 2006
Location: Chicago, IL
Posts: 3,291
Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 888 Post(s)
Liked: 600
Quote:
Originally Posted by jlpowell84 View Post
Ok, definitely a noticeable difference. I tried PLIIX Music with LCR JTR Triple 8's and dual Seaton Submersives on sub duty.

If you are going to try this test. You should try this test!!! Do not go down to my results. Rather download very quickly and run through with a pen to take a couple notes on your guesses. Then come back and compare.

Track labeled "ORG" I am guessing is the original un modified track.
Track Labled "27" I am guessing had low bass and mid bass cut.
Track Labled "43" I am guessing had the low bass and mid bass boosted.
Track Labled "79" I am guessing had the upper treble range boosted.

Other takers would be very interesting.

The test is now biased with your comments , but I just listened to the four sound clips during a break at a conference I'm at, using my Dell laptop's built-in JBL speakers. The conference room was empty, and the doors closed, so little if any background noise.

I heard a slight, possibly placebo difference in the bass between the original and tracks 27 (had less bass) and 79 (had more mid and upper frequency), more of one between 43 (most bass) and the original. 43 and 27 were clearly different cuts as well IMO.

But at least three of the tracks sounded different from one another, in a LT five second between clips A/B using Windows Media Player, and the same volume setting on the laptop. I would not conclude these four clips were identical, and I played two different ones where I randomly picked one of the three non-original clips with my eyes closed, and correctly guessed it was one with less bass.

Not 100% scientific (in a perfect world, I'd have someone play the clips rather than me, picking them randomly), but my ears must be OK. Oh, and I'm 51 .


Maybe this is why I want to play with the Trinnov target curve capability .

Last edited by sdrucker; 06-23-2014 at 10:19 AM.
sdrucker is online now  
post #71570 of 79637 Old 06-23-2014, 10:17 AM
AVS Forum Addicted Member
 
kbarnes701's Avatar
 
Join Date: Jan 2008
Location: Main Listening Positon
Posts: 25,971
Mentioned: 83 Post(s)
Tagged: 0 Thread(s)
Quoted: 6824 Post(s)
Liked: 5262
Quote:
Originally Posted by sdrucker View Post
Not 100% scientific (in a perfect world, I'd have someone play the clips rather than me, picking the randomly), but my ears must be OK. Oh, and I'm 51 .
I can confirm that my ears are OK too (listening on the 2.1 system hooked up to my Mac). And I am even older than you!

Given that JND is 1dB or even less, this comes as no great surprise to me.
kbarnes701 is offline  
post #71571 of 79637 Old 06-23-2014, 11:09 AM
AVS Forum Addicted Member
 
beastaudio's Avatar
 
Join Date: Dec 2010
Location: Western NC
Posts: 12,702
Mentioned: 292 Post(s)
Tagged: 1 Thread(s)
Quoted: 4158 Post(s)
Liked: 3515
Quote:
Originally Posted by mogorf View Post
And then there are the ones who massively "google" any subject they pick up on threads looking for a lot of evidence, yet never bother to do their own simple homemade tests. Forum life, indeed. Gotta live with it.
Google is a pretty fantastic place to find industry white papers, proven research by audio engineers that don't compare phase changes in their speakers to a microwave oven's.

European Models do not accept banana plugs
Belly of the Beast: Bass Bunker Theater
beastaudio is offline  
post #71572 of 79637 Old 06-23-2014, 11:29 AM
AVS Forum Special Member
 
mogorf's Avatar
 
Join Date: May 2009
Location: Budapest, Hungary
Posts: 5,610
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 1127 Post(s)
Liked: 723
Quote:
Originally Posted by beastaudio View Post
Google is a pretty fantastic place to find industry white papers, proven research by audio engineers that don't compare phase changes in their speakers to a microwave oven's.
Right. And then its vise versa. Microwave oven design engineers don't compare phase changes in their ovens to speakers. But they both studied the basics when they entered college or university. Volts, amperes, resistance, capacitance, inductance, amplitude, frequency, phase, etc., and when done they move on with their studies to their specialized fields. Some become engineers in electro-acoustics, others in video techniques, even others in house-hold appliances, telephony, computers, just to name a few. All these fields share the same basics, but used specifically in each of the above fields.

Hope this helps.
mogorf is online now  
post #71573 of 79637 Old 06-23-2014, 11:49 AM
AVS Forum Addicted Member
 
kbarnes701's Avatar
 
Join Date: Jan 2008
Location: Main Listening Positon
Posts: 25,971
Mentioned: 83 Post(s)
Tagged: 0 Thread(s)
Quoted: 6824 Post(s)
Liked: 5262
Quote:
Originally Posted by beastaudio View Post
Google is a pretty fantastic place to find industry white papers, proven research by audio engineers that don't compare phase changes in their speakers to a microwave oven's.
LOL. I tried listening to my microwave oven and I definitely can’t hear any phase-related issues with it. It is inside a fixed cabinet though so I couldn't even begin to optimise it using placement. Mind you, it doesn't have Audyssey so it could be a load of old junk. I wonder if dual ovens would sound better? I understand they are harder to set up though, but I'm sure there are plenty of people on the Internet who could advise me.
ambesolman and beastaudio like this.
kbarnes701 is offline  
post #71574 of 79637 Old 06-23-2014, 01:05 PM
AVS Forum Special Member
 
jlpowell84's Avatar
 
Join Date: Dec 2012
Location: Eugene, OR
Posts: 6,987
Mentioned: 89 Post(s)
Tagged: 0 Thread(s)
Quoted: 1941 Post(s)
Liked: 915
Quote:
Originally Posted by sdrucker View Post
The test is now biased with your comments , but I just listened to the four sound clips during a break at a conference I'm at, using my Dell laptop's built-in JBL speakers. The conference room was empty, and the doors closed, so little if any background noise.

I heard a slight, possibly placebo difference in the bass between the original and tracks 27 (had less bass) and 79 (had more mid and upper frequency), more of one between 43 (most bass) and the original. 43 and 27 were clearly different cuts as well IMO.

But at least three of the tracks sounded different from one another, in a LT five second between clips A/B using Windows Media Player, and the same volume setting on the laptop. I would not conclude these four clips were identical, and I played two different ones where I randomly picked one of the three non-original clips with my eyes closed, and correctly guessed it was one with less bass.

Not 100% scientific (in a perfect world, I'd have someone play the clips rather than me, picking them randomly), but my ears must be OK. Oh, and I'm 51 .


Maybe this is why I want to play with the Trinnov target curve capability .
You know what, I will have my wife play them at random and I will do repeated tests! Like play at least each one 5 times. On my HT speakers, JTR Triple 8's, I could easily hear the differences. But the blind will prove even better!

JLPowell84's Room
FTW21 Ported Build
Spoiler!
jlpowell84 is offline  
post #71575 of 79637 Old 06-23-2014, 01:10 PM
AVS Forum Special Member
 
mogorf's Avatar
 
Join Date: May 2009
Location: Budapest, Hungary
Posts: 5,610
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 1127 Post(s)
Liked: 723
Quote:
Originally Posted by jlpowell84 View Post
You know what, I will have my wife play them at random and I will do repeated tests! Like play at least each one 5 times. On my HT speakers, JTR Triple 8's, I could easily hear the differences. But the blind will prove even better!
The moment you tell her there are differences among the 4 files she will be biased. So, pssst!
mogorf is online now  
post #71576 of 79637 Old 06-23-2014, 01:43 PM
AVS Forum Special Member
 
JHAz's Avatar
 
Join Date: Mar 2009
Posts: 4,588
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 307 Post(s)
Liked: 275
I haven't listened to the test tones yet, but wanted to comment on using our laptops for listening. They just don't play bass. when I go here http://www.seventhstring.com/tuningfork/tuningfork.html and push the waveform slider all the way to the left (a pure sine wave) the C below middle C, at about 130 Hz is so close to inaudible as to be effectively inaudible. If I put a little sawtooth wave in, I can hear all the way down to the next octave, at about 65 Hz, easily. but I am hearing zero 65 Hz tone, my brain is interpolating the fundamental from the harmonics present in the sawtooth wave. Certainly I am rolling off in the lows from middle C at about 260 Hz down to the inaudible, or nearly so, C one octave down. Whatever I perceive as different between samples on my laptop HAS to be happening above 130 Hz . . . likely well above . . . I'd wager that no laptop really reproduces anything significantly below 100 Hz, so you miss the bottom two plus octaves entirely.
JHAz is offline  
post #71577 of 79637 Old 06-23-2014, 02:38 PM
AVS Forum Club Gold
 
sdrucker's Avatar
 
Join Date: Feb 2006
Location: Chicago, IL
Posts: 3,291
Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 888 Post(s)
Liked: 600
Quote:
Originally Posted by JHAz View Post
I haven't listened to the test tones yet, but wanted to comment on using our laptops for listening. They just don't play bass. when I go here http://www.seventhstring.com/tuningfork/tuningfork.html and push the waveform slider all the way to the left (a pure sine wave) the C below middle C, at about 130 Hz is so close to inaudible as to be effectively inaudible. If I put a little sawtooth wave in, I can hear all the way down to the next octave, at about 65 Hz, easily. but I am hearing zero 65 Hz tone, my brain is interpolating the fundamental from the harmonics present in the sawtooth wave. Certainly I am rolling off in the lows from middle C at about 260 Hz down to the inaudible, or nearly so, C one octave down. Whatever I perceive as different between samples on my laptop HAS to be happening above 130 Hz . . . likely well above . . . I'd wager that no laptop really reproduces anything significantly below 100 Hz, so you miss the bottom two plus octaves entirely.
You're more sensitive to specific Hz than I am. A good skill to have to really tune your system, based on specific common notes .


Having said that, there are IMO detectable "bass" differences on the clips. At least with the JBL laptop speakers, it was muddy bass; but we never said that the bass was "good bass"...

Audio Gear: Trinnov Altitude 32 (24 channel), NAD M27 amps (3)
Video: JVC RS600, Seymour 100" UF Screen, Lumagen Radiance Pro 4444 (coming soon)
Misc.: Oppo 103, Oppo 203 UHD player, JRiver
Speakers: PSB Imagine T3 LCR, Imagine T Wides and Side Surround 1, T2 Side Surrounds, Imagine XB rears, PSB CS1000 ceilings (6), HSU ULS-15 Mk 2 subs (4) - 11.4.6
sdrucker is online now  
post #71578 of 79637 Old 06-23-2014, 02:52 PM
AVS Forum Addicted Member
 
kbarnes701's Avatar
 
Join Date: Jan 2008
Location: Main Listening Positon
Posts: 25,971
Mentioned: 83 Post(s)
Tagged: 0 Thread(s)
Quoted: 6824 Post(s)
Liked: 5262
FAQ ADDENDUM UPDATE!

The FAQ Addendum has now been updated to comply with the requirements of vBulletin software and is fully operational once again, with all links and graphics intact.

Thanks to Mike Lang, the AVS/vBulletin Dev Team and VerticalScope for being so responsive to our requirements.

The Addendum can be seen here:

"Official" Audyssey thread (FAQ in post #51779)
kbarnes701 is offline  
post #71579 of 79637 Old 06-23-2014, 05:13 PM
AVS Forum Special Member
 
primetimeguy's Avatar
 
Join Date: Sep 2005
Location: Rosemount, MN
Posts: 4,596
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 623 Post(s)
Liked: 376
Post

Quote:
Originally Posted by jjazdk View Post
Here you go..
http://www.jjaz.dk/privat/AVS/test.zip

One of the filters may not be that easy to identify on this particular piece of music, but it is easy to hear that something changed. At least I can easily spot them on my PC speakers.
I gave it a quick couple minutes on just my PC speakers. Didn't bother with main system since differences are pretty obvious between at least a couple tracks.

43 = boosted bass, rolled off highs
79 = reduced bass, boosted highs
org = original (assumption)
27 = the other one :-)

But yes, some bias in the test since I knew going in there was differences. Track 27 I'm not sure I would have said was different. I think I here it is there but would need to test on main system rather than PC to verify. But as mentioned, test is already biased. :-)
primetimeguy is online now  
post #71580 of 79637 Old 06-23-2014, 06:05 PM
AVS Forum Special Member
 
joehonest's Avatar
 
Join Date: May 2011
Posts: 1,029
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 101 Post(s)
Liked: 42
Quote:
Originally Posted by JHAz View Post
I haven't listened to the test tones yet, but wanted to comment on using our laptops for listening. They just don't play bass. when I go here http://www.seventhstring.com/tuningfork/tuningfork.html and push the waveform slider all the way to the left (a pure sine wave) the C below middle C, at about 130 Hz is so close to inaudible as to be effectively inaudible. If I put a little sawtooth wave in, I can hear all the way down to the next octave, at about 65 Hz, easily. but I am hearing zero 65 Hz tone, my brain is interpolating the fundamental from the harmonics present in the sawtooth wave. Certainly I am rolling off in the lows from middle C at about 260 Hz down to the inaudible, or nearly so, C one octave down. Whatever I perceive as different between samples on my laptop HAS to be happening above 130 Hz . . . likely well above . . . I'd wager that no laptop really reproduces anything significantly below 100 Hz, so you miss the bottom two plus octaves entirely.
Only use sine waves for speakers !!! Why would anyone use a sawtooth wave, it maybe very harmful .
joehonest is offline  
Sponsored Links
Advertisement
 
Closed Thread Receivers, Amps, and Processors

Tags
Audyssey , Receivers Amplifiers , Kef Kht1005 2se 5 1 Subwoofer Satellite System With C4 Subwoofer Gloss White , 5 6 7 1 7 2 Or 8 1 8 2 One Or Two Subwoofer Compatible 16 Banana Post 2 Rca Speaker Wall Plate For H

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

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