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Old 02-20-2016, 12:11 PM   #16
DavidMcCann
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On the page I linked to it says
Quote:
Kernel (lowlatency) is now of version 3.5
A MIDI router and MIDI tools menu have been added.
You can't get much clearer than that! Those points are also clarified here
http://ubuntustudio.org/tour/audio/
 
Old 02-20-2016, 12:15 PM   #17
jamison20000e
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From Debian.
 
Old 02-20-2016, 12:16 PM   #18
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Quote:
Originally Posted by DavidMcCann View Post
On the page I linked to it says

You can't get much clearer than that! Those points are also clarified here
http://ubuntustudio.org/tour/audio/
And that clearly states that low-latency is better than realtime does it? Sorry, I must be rally stupid because I can't understand that.
It would help if somebody bothered to define what they meant by "low-latency" and "realtime" because from the names the former seems to be about speed and the latter providing a "real" time source and doing things "on the clock".
The fact that many are likely using the standard kernel for music with no issues also muddies the waters somewhat.
So, please, provide some facts?
 
Old 02-20-2016, 12:32 PM   #19
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Quote:
Originally Posted by 273 View Post
And that clearly states that low-latency is better than realtime does it? Sorry, I must be rally stupid because I can't understand that. The fact that many are likely using the standard kernel for music with no issues also muddies the waters somewhat. So, please, provide some facts?
When I tested Ubuntu Studio and AV Linux, I noted that they both use a low-latency kernel. Presumably the people who produce them think that necessary: if they'd preferred a real-time kernel, they'd have used one. I also assume that people making specialist distros know how to do it. I don't -- do you?

At the time I checked about this kernel and read that this was recommended for music production, although it was not so important for fast, modern computers. Since the OP says he's using "legacy hardware", the fact (?) that "many are using the standard kernel" may not be relevant to his situation.

I've done my best to help the OP on the basis of my knowledge and experience (I have actually installed and run both distros) however slight. If you want to continue to indulge your ego, include me out.
 
Old 02-20-2016, 12:42 PM   #20
jamison20000e
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Just another fork in the road*
 
Old 02-20-2016, 12:44 PM   #21
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Quote:
Originally Posted by DavidMcCann View Post
When I tested Ubuntu Studio and AV Linux, I noted that they both use a low-latency kernel. Presumably the people who produce them think that necessary: if they'd preferred a real-time kernel, they'd have used one. I also assume that people making specialist distros know how to do it. I don't -- do you?

At the time I checked about this kernel and read that this was recommended for music production, although it was not so important for fast, modern computers. Since the OP says he's using "legacy hardware", the fact (?) that "many are using the standard kernel" may not be relevant to his situation.

I've done my best to help the OP on the basis of my knowledge and experience (I have actually installed and run both distros) however slight. If you want to continue to indulge your ego, include me out.
This is nothing about "my ego" this is about actual facts and evidence.
The descriptions of these kernel versions make no sense at all and it's clear that nobody seems to understand what they do and why what they do matters.

Please, please, please provide some data of some sort, some tests by one person even, regarding this! That is a genuinely honest plea -- I've asked a friend who used to read a lot of Linux audio user posts and he never found anything to explain this either.

It seems that there's somebody out there who thinks they've done something to the kernel to "make it better" in some way but they can't be bothered to explain it.

DavidMcCann: My sincerest apologies -- my ranting is not directed at you but at whomever is responsible for the "low-latency" and "realtime" kernels and their absolute lack of any explanation.
 
Old 02-20-2016, 03:57 PM   #22
ondoho
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i always thought (emphasis! not googled! please correct me if i'm wrong!) that the "realtime" audio production concept is a theory that can be only approximated (more and more), but never actually reached.
the basic idea is that you hear a recording, and want to record something on top of that and that there is NO latency, NO delay, between you hearing it, and the computer recording your additions.
something taken for granted with analog production, but the single biggest hurdle for digital audio production.

the thing here is, if you don't use your computer studio os for live studio recording, you probably don't even need this.
in other words, a computer that produces a track all with its own devices can have as much latency as it wants, it will still produce a valid music track.

i hope i made myself clear.

please correct me if i'm wrong; these are things i thought up while trying to switch from analog to digital a while back.
 
Old 02-20-2016, 04:03 PM   #23
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Quote:
Originally Posted by ondoho View Post
i always thought (emphasis! not googled! please correct me if i'm wrong!) that the "realtime" audio production concept is a theory that can be only approximated (more and more), but never actually reached.
the basic idea is that you hear a recording, and want to record something on top of that and that there is NO latency, NO delay, between you hearing it, and the computer recording your additions.
something taken for granted with analog production, but the single biggest hurdle for digital audio production.

the thing here is, if you don't use your computer studio os for live studio recording, you probably don't even need this.
in other words, a computer that produces a track all with its own devices can have as much latency as it wants, it will still produce a valid music track.

i hope i made myself clear.

please correct me if i'm wrong; these are things i thought up while trying to switch from analog to digital a while back.
I thought that the realtime ought to be a real time, quantised, version with definite time so that things like MIDI were on time. Sadly, nobody knows...
 
Old 02-21-2016, 01:25 AM   #24
ondoho
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i had a look into linuxaudio's wiki;
i got the impression that the terms low-latency and real-time are...
  • intertwined
  • low-latency is not a kernel option, but the resulting quality
  • the term low-latency is not in common use anymore since kernel versions above 2.6.39
  • "real-time" is a kernel config setting that seems to try to adjust latency so that it is fixed(*) (actual realtime audio processing can and will always be impossible).

http://wiki.linuxaudio.org/wiki/syst...ncy#the_kernel
http://wiki.linuxaudio.org/wiki/lowl...s[]=kernel
http://wiki.linuxaudio.org/wiki/real...s[]=kernel

(*) iiuc, that is what 273 pointed out in their previous post
 
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Old 02-21-2016, 08:19 AM   #25
273
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Quote:
Originally Posted by ondoho View Post
i had a look into linuxaudio's wiki;
i got the impression that the terms low-latency and real-time are...
  • intertwined
  • low-latency is not a kernel option, but the resulting quality
  • the term low-latency is not in common use anymore since kernel versions above 2.6.39
  • "real-time" is a kernel config setting that seems to try to adjust latency so that it is fixed(*) (actual realtime audio processing can and will always be impossible).

http://wiki.linuxaudio.org/wiki/syst...ncy#the_kernel
http://wiki.linuxaudio.org/wiki/lowl...s[]=kernel
http://wiki.linuxaudio.org/wiki/real...s[]=kernel

(*) iiuc, that is what 273 pointed out in their previous post
Many thanks for doing the research, I hadn't realised that the two were intertwined -- it seems that, perhaps, low-latency is a slight misnomer and it's more to do with interrupt priorities and the like.
 
  


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