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How often do other processes on a computer cause the CPU usage to fail servicing buffering of data for the audio stack.


Ralf11
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I'm most interested in a Mac

 

it is also not clear to me that the data cannot just sit in a buffer until the CPU is ready for it, and thus SQ would not be affected

 

If the computer is treated as strictly as an appliance for audio reproduction, then never, barring some sort of hardware failure.

 

PCM audio is a trivial load for current CPU's.

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If the computer is treated as strictly as an appliance for audio reproduction, then never, barring some sort of hardware failure.

 

PCM audio is a trivial load for current CPU's.

 

With a general purpose computer , breakthrough in the form of small clicks, or small glitches (small discontinuities in the recorded waveform) when recording , may occur if an email client is open and does it's regular programmed search for new emails. (You could be listening to music while preparing an email to send)

 

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

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If the computer is treated as strictly as an appliance for audio reproduction, then never, barring some sort of hardware failure.

 

PCM audio is a trivial load for current CPU's.

 

on that closed thread, you seemed to have a different opinion

 

Let's say that several programs and browser tabs are open but no keyboard input is being done; Email is open but not being worked on

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on that closed thread, you seemed to have a different opinion

 

Let's say that several programs and browser tabs are open but no keyboard input is being done; Email is open but not being worked on

 

You could even be doing a Usenet download while doing other things such as listening to music.When the file is completely downloaded, the Download program may then automatically use a processor intensive program such as Quick Par to check the .rar files, and correct errors using the .par files provided for this purpose. This may even result in video and audio stuttering or freezing until the process is completed. You could of course assign a lower priority to Quick Par, but then larger downloads such as DVDs and BluRays would take what seems forever to complete.

 

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

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I first saw this when "upgrading" from 10.6 to 10.7. However, it is a rare occurence, and OS X, like all unix operating systems, allows you to nice a process (with admin privilidges) to give it higher priority. Spotlight/metadata indexing seems to be the main culprit, but this can be turned off, or at least minimized.

 

In practice, it generally isn't an issue.

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You could even be doing a Usenet download while doing other things such as listening to music.When the file is completely downloaded, the Download program may then automatically use a processor intensive program such as Quick Par to check the .rar files, and correct errors using the .par files provided for this purpose. This may even result in video and audio stuttering or freezing until the process is completed. You could of course assign a lower priority to Quick Par, but then larger downloads such as DVDs and BluRays would take what seems forever to complete.

 

Alex, torrents are a more efficient way to download porn.

Sometimes it's like someone took a knife, baby
Edgy and dull and cut a six inch valley
Through the middle of my skull

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Alex, torrents are a more efficient way to download porn.

 

Really ? You would know all about that !

How long would it take me to DL this ? DTS MUSIC DEMO 3 BLU-RAY 22.6GB

Bear in mind too, that there are >13 in the series with similar sizes.

 

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

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With a general purpose computer , breakthrough in the form of small clicks, or small glitches (small discontinuities in the recorded waveform) when recording , may occur if an email client is open and does it's regular programmed search for new emails. (You could be listening to music while preparing an email to send)

If typing an email makes audio stutter, your computer is badly misconfigured.

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You could even be doing a Usenet download while doing other things such as listening to music.When the file is completely downloaded, the Download program may then automatically use a processor intensive program such as Quick Par to check the .rar files, and correct errors using the .par files provided for this purpose. This may even result in video and audio stuttering or freezing until the process is completed. You could of course assign a lower priority to Quick Par, but then larger downloads such as DVDs and BluRays would take what seems forever to complete.

A decent OS won't let this happen. If it does, it means the CPU or I/O scheduling is incompetent or the audio subsystem is misconfigured, e.g. with far too small buffers.

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Thankfully Windows 10 has a nice reset button for that.

 

The most recent Windows 10 builds are IMO badly broken (I'm running two of them), at least for me, especially in the user permissions area (can't install software, share folders on the local network, change some settings), and it's not fixed by a reset, or the bollixed permissions won't allow a reset.

One never knows, do one? - Fats Waller

The fairest thing we can experience is the mysterious. It is the fundamental emotion which stands at the cradle of true art and true science. - Einstein

Computer, Audirvana -> optical to EtherREGEN -> microRendu -> ISO Regen -> Pro-Ject Pre Box S2 DAC -> Spectral DMC-12 & DMA-150 -> Vandersteen 3A Signature.

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The most recent Windows 10 builds are IMO badly broken (I'm running two of them), at least for me, especially in the user permissions area (can't install software, share folders on the local network, change some settings), and it's not fixed by a reset, or the bollixed permissions won't allow a reset.

You need the Pro edition. The Home (or whatever they call it) is useless.

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You need the Pro edition. The Home (or whatever they call it) is useless.

That's what I'm running (both installations). I've been on the Fast ring for new builds and up to the past few builds they've been pretty innocuous. But the latest builds have turned out to be more than typically buggy. PITA. It's with a sigh of relief that I boot into Linux on that desktop.

One never knows, do one? - Fats Waller

The fairest thing we can experience is the mysterious. It is the fundamental emotion which stands at the cradle of true art and true science. - Einstein

Computer, Audirvana -> optical to EtherREGEN -> microRendu -> ISO Regen -> Pro-Ject Pre Box S2 DAC -> Spectral DMC-12 & DMA-150 -> Vandersteen 3A Signature.

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Im on a MAC doing DSD. Im not aware of problems when I download.But I don't use the computer for anything else when I download. On Play back stuttering is a problem. I upsample everything to DSD256 in JRiver, and unless I increase buffering times to 250 or more I have stuttering. If I open and use safari ,I have stuttering problems. I don't know if using a bigger buffering rate affects SQ, but Im longing for a more powerful CPU. Using Intel I5 right now on a 2014 Macbook Pro

I'm most interested in a Mac

 

it is also not clear to me that the data cannot just sit in a buffer until the CPU is ready for it, and thus SQ would not be affected

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Im on a MAC doing DSD. Im not aware of problems when I download.But I don't use the computer for anything else when I download. On Play back stuttering is a problem. I upsample everything to DSD256 in JRiver, and unless I increase buffering times to 250 or more I have stuttering. If I open and use safari ,I have stuttering problems.

 

Your CPU is probably just barely fast enough to do that upsampling, which is why you need a fairly large buffer (is that 250 milliseconds)?

 

I don't know if using a bigger buffering rate affects SQ

 

It does not. (Assuming you meant buffer size; buffer rate is meaningless.)

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on that closed thread, you seemed to have a different opinion

 

Let's say that several programs and browser tabs are open but no keyboard input is being done; Email is open but not being worked on

 

Then you open up the infinite possibilities of what if I were doing X/Y/Z. Then you take your chances because X/Y/Z could take up any amount of resources. Be it CPU/RAM/Disk bound.

 

Best practice is to keep it simple. I often have Amazon Prime Music running on my laptop during the day while I work. Most of the time it's fine but every once in a while it will stutter, pop what have you.

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The most recent Windows 10 builds are IMO badly broken (I'm running two of them), at least for me, especially in the user permissions area (can't install software, share folders on the local network, change some settings), and it's not fixed by a reset, or the bollixed permissions won't allow a reset.

 

You can do classic sharing permissions with Windows 10 home editions.

 

I just do everything from PowerShell and eschew the messed up UI MS has implemented.

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Really ? You would know all about that !

How long would it take me to DL this ? DTS MUSIC DEMO 3 BLU-RAY 22.6GB

Bear in mind too, that there are >13 in the series with similar sizes.

 

I'm surprised that you would download these over the Internet as compressed files given your oft-expressed belief about how this causes significant degradation in sound quality.

Sometimes it's like someone took a knife, baby
Edgy and dull and cut a six inch valley
Through the middle of my skull

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If typing an email makes audio stutter, your computer is badly misconfigured.

 

Do you have poor reading comprehension ?

I never said it did ! I simply said there could be a few small clicks as the email client checked for new mail (while listening to music with the email screen open) !!!

 

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

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I'm surprised that you would download these over the Internet as compressed files given your oft-expressed belief about how this causes significant degradation in sound quality.

 

Unlike arrogant know-it-alls like yourself, I am now able to REGENERATE the files to their original quality !

I have far better to do than argue with smart arses like yourself, so I will not be going further on this subject in THIS forum.

I am however prepared to answer PMs on the subject from those who have no axes to grind.

I did have a whole thread prepared on the subject .but given the never ending personal attacks and hostility from certain members, I have decided it isn't the time or place to post it, as yourself and several others would attempt to completely disrupt the thread.

 

BYE !

 

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

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