Jump to content
IGNORED

CPU Load and Sound Quality


STC

Recommended Posts

18 minutes ago, STC said:


Even to confirm BS is BS you need measurements. Your method of tasting not is reliable. 

 I would be willing bet you don't even perform measurements on the equipment that you repair to ensure that it is performing to it's original specifications, and do no more than a cursory listen to it, if that .

This has all become rather childish as Peter recently hinted.

 

untitled.png

 

How a Digital Audio file sounds, or a Digital Video file looks, is governed to a large extent by the Power Supply area. All that Identical Checksums gives is the possibility of REGENERATING the file to close to that of the original file.

PROFILE UPDATED 13-11-2020

Link to comment
8 minutes ago, Blackmorec said:

Quite honestly, that is the biggest load of misinformed BS I’ve ever listened to. If you think that video has any merit then its absolutely no wonder we disagree. The only conclusion I reach from this is that if you don’t want to be able to hear the difference between MP3 and uncompressed WAV files, make sure you listen to it on a mid-fi system with plenty of noise. 

 

On my system, I can play 320kbps MP3 files and they sound really good. Orchestral instruments have accurate tone, the instruments are placed correctly in space, it has pace, rhythm and timing aplenty, and the music communicates really well. I can actually listen to and enjoy 128kbps files which I do on a very regular basis. For a reason. I listen to maybe half an hour to an hour of Radio Swiss Classic.....they play absolutely wonderful music with only music and orchestra introductions.  It sounds gorgeous and the performances vary between exceptional and virtuoso. 

Then I switch to remotely or locally streamed 16/44.1kHz wav files.  Holee Molee. The experience is quite shocking. Suddenly there is a room full of 3 dimensional music with incredible power, drive and focus. Instruments sound like they are real, there’s huge amounts of information about the musicians and the instruments they are playing, the room disappears and is replaced by the recorded acoustic, which may be a large concert hall or a completely artificially created studio masterpiece. The soundstage has unbelievable depth, extending from adjacent of my listening chair to somewhere far off in the distance, depending of course on what’s on the recording. 

So while 320kbps MP3 sound absolutely fine, they have nowhere near the performance of the WAV files. Not even close.  You know the difference between watching something on regular 32” SDTV vs a 65” 4K OLED UHDTV? Well the difference between 128kbps MP3 and 16/44.1 WAV is greater....more dramatic.  With 320kbps you are listening to some music in your room. With 16/44.1  WAV you are now at the venue with the musicians and the venue acoustics as plain as day. 

You don’t need to concentrate....the music is mesmerising; pulling you into its completely enveloping atmosphere and not letting go for a second. 

Frankly, if you can’t hear a very clear difference between 320kbps MP3 and 16/44.1WAV then its absolutely no wonder you can’t detect the difference between cables and such and completely explains why I hear things you can’t. 


Maybe I feel the same. I always thought I could distinguish them. Unfortunately, I don’t get a chance to prove. I have always welcomed anyone to bring their equipment and test them but after the initial euphoria no one is willing to do. 
 

Only one brave very senior distributor ever dared to do the serious challenge. The bet was if he could distinguish his equipment, I would buy them on the spot. I asked for 20 trials. Equipment was his player, his own CD and his speakers. Against Theta Digital and Marantz SACD player . After trial number 12 he stopped because he was suffering from terrible headache. He got 3 out of 12 correct Sadly since then no one wanted to come for blind tests.😭😭😭😭😭😭😭😭😭😭😭 

Link to comment
10 hours ago, STC said:
10 hours ago, davide256 said:

by definition a security scan uses significant system resource and lots of hard drive activity. Neither of these is good for music playback in any OS

Why? Any evidence?

A full virus scan of Windows does a lot of hard drive thrashing and generally bogs down the system. I wouldn't be surprised if audio playback suffered from stuttering while the scan is running. Now why would anyone run a full virus scan while playing music?

Link to comment
7 minutes ago, mansr said:

A full virus scan of Windows does a lot of hard drive thrashing and generally bogs down the system. I wouldn't be surprised if audio playback suffered from stuttering while the scan is running. Now why would anyone run a full virus scan while playing music?


Notwithstanding stuttering, I don’t hear any difference in SQ as long as the COU is below 100%. But My application is bit different because I use the PC to send the data to the DAC with 3 seconds delay. 

Link to comment
21 minutes ago, STC said:

Notwithstanding stuttering, I don’t hear any difference in SQ as long as the COU is below 100%. But My application is bit different because I use the PC to send the data to the DAC with 3 seconds delay. 

That's probably enough to handle even the most extreme latency spikes.

Link to comment
1 hour ago, marce said:

Sorry, but you've got this the wrong way round, my arguments are based on physic's, reality... Not hearsay.

Ah ha. And here’s me thinking that physics was about equations, formulae and graphs when all the time a few well worn cliches was all I needed. That damned physics master. 

 

But jokes aside;  I’m not talking hearsay...because personally I’ve heard it first hand.  Its only hearsay for you, who hasn’t, presumably ever. 

I want you to try something. I would like you to listen to a piece of music, a Michel Petrucciani Trio album would be great. The guy was truly a genius, so I’m sure you’ll enjoy his music.  Now while you’re listening I want you to imagine hearing the following:

  • Increased reverberation from the hall...a faint echo in the RH channel that’s obviously hall ambience, only heard on forte sections where the energy is sufficient to activate the hall’s reflections. 
  • For Michel, I want you to imagine better defined timing and phrasing and more tension in his playing
  • Then I’d like you to add some further detail and definition to Richard Tee’s brush strokes
  • And finally I’d like your to add a little more timbre and body to Miroslav Vitous’s gentle bass plucks....not too much, just a little. 

And I want you to do all this without thinking about it. That’s right, I want you to imagine those things subconsciously, but at the same time your not consciously imagining them, i want you to be consciously hearing them so you perk up and say, “wow, that sounds better”

I’d also like you to do the same thing next time you listen to this album, or even better every time you listen to it. 

So that’s Michel Petrucciani done....let’s move on to the next album. Any favorites you’d like to imagine improving?  

Link to comment
8 minutes ago, Blackmorec said:

Ah ha. And here’s me thinking that physics was about equations, formulae and graphs when all the time a few well worn cliches was all I needed. That damned physics master. 

 

But jokes aside;  I’m not talking hearsay...because personally I’ve heard it first hand.  Its only hearsay for you, who hasn’t, presumably ever. 

I want you to try something. I would like you to listen to a piece of music, a Michel Petrucciani Trio album would be great. The guy was truly a genius, so I’m sure you’ll enjoy his music.  Now while you’re listening I want you to imagine hearing the following:

  • Increased reverberation from the hall...a faint echo in the RH channel that’s obviously hall ambience, only heard on forte sections where the energy is sufficient to activate the hall’s reflections. 
  • For Michel, I want you to imagine better defined timing and phrasing and more tension in his playing
  • Then I’d like you to add some further detail and definition to Richard Tee’s brush strokes
  • And finally I’d like your to add a little more timbre and body to Miroslav Vitous’s gentle bass plucks....not too much, just a little. 

And I want you to do all this without thinking about it. That’s right, I want you to imagine those things subconsciously, but at the same time your not consciously imagining them, i want you to be consciously hearing them so you perk up and say, “wow, that sounds better”

I’d also like you to do the same thing next time you listen to this album, or even better every time you listen to it. 

So that’s Michel Petrucciani done....let’s move on to the next album. Any favorites you’d like to imagine improving?  

 

Seriously, this happens all the time. I've been a victim of this many times. Listening to music using some fancy new component, finding amazing differences and improvement only to later find that I forgot to switch the input, and was listening to the old component I've had for years. So, what does this prove?

Link to comment
1 minute ago, davide256 said:

Feel free to play around with DPCLatencyChecker and verify the increased latency from a full virus scan. But measurements won’t get you better than mid-fi level of SQ, our ears are more demanding than current measurement techniques. 


I am practical person. My system is meant to serve me. Whether my system is mid fi or not I let the visitors to judge. You can see them in my webpage.
 

Our ears and brain work so differently than what you think. even the most complex symphony recital would be reduced to the simplest form by the brain. Look up for the research of brain scan while listening to classical music. 
 

The trouble with audiophiles is that they have been brain washed that stereo production is real. After few weeks of listening to them you will start to have the urge to find some improvements. Change the speakers, amp and so forth. That’s because your brain is reminding that the sound you are hearing is not real. why do you think vinyl is more natural than digital. It is not because it is more accurate but it represent the flaws which smoothen the peaks and dips due to the wobbly nature of the replay. In live performance you do not hear pristine direct sound but more of the ambiance which smoothen the peaks and dips. 
 

I don’t even think it is correct to do AB comparison to find which is better. I will make different tracks with different sampling rate and play them randomly. If I feel track A is 96, I would jot down and listen to rest of the tracks. And if I can’t get even 80 correct than whatever resolution becomes irrelevant to me. I do the same test for the visitors. Of course if I am comparing the same track with different sampling rate then at timeS I could get them all right. BUT not so consistent if I do not have side by side comparison.

 

Still looking for someone who could do better than me but about my hearing I let the result I posted in Mani’s thread to speak for itself.  

 

Link to comment
29 minutes ago, pkane2001 said:

 

That speaks to your psyche: you're more concerned that the new component you've just installed is not worth the money you paid for it. First psychoanalysis is free. I'll bill you for the next session :)

 

Damned right! I honestly don’t need your kind services to tell me that. What I REALLY don’t want is to buy something that makes my system sound worse and then have to sell it at a loss. This is why I try to get a dealer loaner first, but sometimes that’s not possible. 

 

I just did that with a TT, arm and cartridge and close to 200 original EMI and Decca classical records. I believed my own very old experience that vinyl is superior and found out in short order that it no longer is. Cost me a lot, that mistake.  Mini classical record collection anyone? 

Link to comment
3 hours ago, Blackmorec said:

Ah ha. And here’s me thinking that physics was about equations, formulae and graphs when all the time a few well worn cliches was all I needed. That damned physics master. 

 

But jokes aside;  I’m not talking hearsay...because personally I’ve heard it first hand.  Its only hearsay for you, who hasn’t, presumably ever. 

I want you to try something. I would like you to listen to a piece of music, a Michel Petrucciani Trio album would be great. The guy was truly a genius, so I’m sure you’ll enjoy his music.  Now while you’re listening I want you to imagine hearing the following:

  • Increased reverberation from the hall...a faint echo in the RH channel that’s obviously hall ambience, only heard on forte sections where the energy is sufficient to activate the hall’s reflections. 
  • For Michel, I want you to imagine better defined timing and phrasing and more tension in his playing
  • Then I’d like you to add some further detail and definition to Richard Tee’s brush strokes
  • And finally I’d like your to add a little more timbre and body to Miroslav Vitous’s gentle bass plucks....not too much, just a little. 

And I want you to do all this without thinking about it. That’s right, I want you to imagine those things subconsciously, but at the same time your not consciously imagining them, i want you to be consciously hearing them so you perk up and say, “wow, that sounds better”

I’d also like you to do the same thing next time you listen to this album, or even better every time you listen to it. 

So that’s Michel Petrucciani done....let’s move on to the next album. Any favorites you’d like to imagine improving?  

So now I have to learn to listen to music....

Link to comment
2 hours ago, Blackmorec said:

I’m far too polite to say 🤐

 

But what I would say, is that in my case, almost every time I install a new component it usually sounds considerably worse and i spend the next 24 to 240 hours in a state of post-purchase-paranoia, hoping I haven’t screwed up. 

Your ears adjust to any change in sound, break in is another exaggerated (but convenient) effect.

Link to comment

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



×
×
  • Create New...