Re: [LAD] panning thoughts

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From: <fons@...>
To: Ralf Mardorf <ralf.mardorf@...>
Cc: Arnold Krille <arnold@...>, <linux-audio-dev@...>, Qtractor Devel <qtractor-devel@...>
Date: Sunday, November 14, 2010 - 11:37 am

On Sun, Nov 14, 2010 at 06:14:48AM +0100, Ralf Mardorf wrote:

> Using sin/cos still is very time-consuming?

Define 'very time consuming'.

> I do understand The Wiki on German better, but the Wiki on English,

This is not about small angles. More exactly: 'Tabulation is the proper
solution for RT applications when only low resolution of the angle is
required'.

You won't get a single simple answer to a question that has
no such answer. It all depends on:

* The platform. DSP chips don't usually have fast sin() and
cos() functions while on a modern PC these can be quite
fast.

* The application: which will define what is required in
terms of

- absolute accuracy
- relative accuracy
- resolution
- other numerical criteria

* How the calculation is used:

- for each sample
- for each N-th sample
- for each N-th sample but only when the input changes

and

- on one or a few channels, or
- maybe on hundreds of them.

Ciao,

--
FA

There are three of them, and Alleline.

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Messages in current thread:
[LAD] panning thoughts, Eric Kampman, (Fri Nov 12, 4:22 am)
Re: [LAD] panning thoughts, Jens M Andreasen, (Fri Nov 12, 9:41 am)
Re: [LAD] panning thoughts, , (Fri Nov 12, 7:00 pm)
Re: [LAD] panning thoughts, Ralf Mardorf, (Sat Nov 13, 3:22 am)
Re: [LAD] panning thoughts, , (Sat Nov 13, 10:43 am)
Re: [LAD] panning thoughts, Eric Kampman, (Fri Nov 12, 3:14 pm)
Re: [LAD] panning thoughts, gene heskett, (Fri Nov 12, 4:47 pm)
Re: [LAD] panning thoughts, Arnold Krille, (Fri Nov 12, 10:46 pm)
Re: [LAD] panning thoughts, Folderol, (Sat Nov 13, 9:07 am)
Re: [LAD] panning thoughts, Paul Davis, (Sat Nov 13, 1:09 pm)
Re: [LAD] panning thoughts, Folderol, (Sat Nov 13, 2:57 pm)
Re: [LAD] panning thoughts, , (Sat Nov 13, 3:26 pm)
Re: [LAD] panning thoughts, Ralf Mardorf, (Sat Nov 13, 5:51 pm)
Re: [LAD] panning thoughts, Arnold Krille, (Sat Nov 13, 6:30 pm)
Re: [LAD] panning thoughts, Ralf Mardorf, (Sun Nov 14, 5:15 am)
Re: [LAD] panning thoughts, Arnold Krille, (Sun Nov 14, 3:04 pm)
Re: [LAD] panning thoughts, Folderol, (Sun Nov 14, 3:39 pm)
Re: [LAD] panning thoughts, Jens M Andreasen, (Sun Nov 14, 6:17 pm)
Re: [LAD] panning thoughts, , (Sun Nov 14, 11:37 am)
Re: [LAD] panning thoughts, Rui Nuno Capela, (Sun Nov 14, 11:17 am)
Re: [LAD] panning thoughts, Ralf Mardorf, (Sun Nov 14, 1:00 pm)
Re: [LAD] panning thoughts, Paul Davis, (Sun Nov 14, 11:27 am)
Re: [LAD] panning thoughts, Rui Nuno Capela, (Sun Nov 14, 4:02 pm)
Re: [LAD] panning thoughts, , (Sat Nov 13, 10:54 am)
Re: [LAD] panning thoughts, Ralf Mardorf, (Sat Nov 13, 1:18 pm)
Re: [LAD] panning thoughts, Philipp Überbacher, (Sat Nov 13, 5:07 pm)
Re: [LAD] panning thoughts, , (Sat Nov 13, 8:18 pm)
Re: [LAD] panning thoughts, James Morris, (Sat Nov 13, 8:25 pm)
Re: [LAD] panning thoughts, Philipp Überbacher, (Sat Nov 13, 10:44 pm)
Re: [LAD] panning thoughts, , (Sun Nov 14, 12:01 am)
Re: [LAD] panning thoughts, Remon Sijrier, (Mon Nov 22, 1:15 pm)
Re: [LAD] panning thoughts, , (Mon Nov 22, 2:36 pm)
Re: [LAD] panning thoughts, Remon Sijrier, (Mon Nov 22, 7:06 pm)
Re: [LAD] panning thoughts, Fons Adriaensen, (Mon Nov 22, 9:00 pm)
Re: [LAD] panning thoughts, David Olofson, (Sat Nov 13, 5:24 pm)
Re: [LAD] panning thoughts, Philipp Überbacher, (Sat Nov 13, 5:53 pm)
Re: [LAD] panning thoughts, , (Sat Nov 13, 3:04 pm)
Re: [LAD] panning thoughts, Ralf Mardorf, (Sat Nov 13, 5:30 pm)
Re: [LAD] panning thoughts, , (Fri Nov 12, 9:18 am)
Re: [LAD] panning thoughts, Eric Kampman, (Fri Nov 12, 3:11 pm)
Re: [LAD] panning thoughts, Ralf Mardorf, (Fri Nov 12, 5:40 am)
Re: [LAD] panning thoughts, Eric Kampman, (Fri Nov 12, 3:08 pm)
Re: [LAD] panning thoughts, Rui Nuno Capela, (Fri Nov 12, 3:44 pm)
Re: [LAD] panning thoughts, Ralf Mardorf, (Fri Nov 12, 4:20 pm)
Re: [LAD] panning thoughts, Ralf Mardorf, (Fri Nov 12, 3:32 pm)