On 08/01/2012 01:52 PM, Louigi Verona wrote:
Is JACKSession really dead?
And fellas, to a non-coder, can you explain why isn't session handling
done through JACK, which seems like a logical thing to do?
I'm not a coder.
Advantages are imo:
1) you can leave JACK apps outside a session on
Hello again,
Seems like only five minutes ago we last sp0ke!?
Have to say I am sorry for the pretty majorly catastrophic show
stopping bug in Petri-Foo's Non Session Manager support.
You know the one, the one which made it not work when you first tried
it out and thought huh well that's a bit
Hi all,
I've working on a LV2 instrument plugin, and it consumes about 1-2% CPU on
idle. When I leave it for about 20 seconds, the CPU usage jumps to 38 / 40
% of a core, and JACK xruns. The code contains IIR's for a reverb effect,
so I'm going to blame this CPU burning on denormal values.
I'm
On 08/02/2012 02:06 PM, Harry van Haaren wrote:
Hi all,
I've working on a LV2 instrument plugin, and it consumes about 1-2% CPU on
idle. When I leave it for about 20 seconds, the CPU usage jumps to 38 / 40
% of a core, and JACK xruns. The code contains IIR's for a reverb effect,
so I'm
More info is at http://carlh.net/plugins/denormals.php
Interesting numbers ... I just don't understand the 32-bit pentium 3 numbers.
Where is the reference from which the factors displayed in this table for this
CPU are derived ?
J.
Hi,
that's my solution regardless of CPU type:
//
// DENORMALS ARE EVIL
//
// 32 bit float
// SMMM
// E = 0, M != 0 - denormal
// processing denormals uses lot of cpu.
// problem: an IIR feeds back 0.7*y.
// a value 0 will decay until the smallest float is reached:
On Thu, Aug 2, 2012 at 5:43 AM, rosea.grammostola
rosea.grammost...@gmail.com wrote:
3) it works also with other audio servers like KLANG :)
i imagine that this is supposed to be facetious, but if you had understood
anything about KLANG it should have been that it is NOT intended to be, or
On 08/02/2012 03:17 PM, Paul Davis wrote:
On Thu, Aug 2, 2012 at 5:43 AM, rosea.grammostola
rosea.grammost...@gmail.com mailto:rosea.grammost...@gmail.com wrote:
3) it works also with other audio servers like KLANG :)
i imagine that this is supposed to be facetious, but if you had
On Thu, 2012-08-02 at 13:06 +0100, Harry van Haaren wrote:
Hi all,
I've working on a LV2 instrument plugin, and it consumes about 1-2%
CPU on idle. When I leave it for about 20 seconds, the CPU usage jumps
to 38 / 40 % of a core, and JACK xruns. The code contains IIR's for a
reverb
Hi Martin,
Can I pick your brain on how this works?
My biggest question is why to use the typedef__u32__attribute__ line
inside an inline function. Don't you only have to do this once? If
so, wouldn't you place that line outside the function?
On Thu, Aug 2, 2012 at 7:39 AM, Martin
On Thu, Aug 2, 2012 at 10:13 AM, Charles Henry czhe...@gmail.com wrote:
On Thu, Aug 2, 2012 at 7:39 AM, Martin Homuth-Rosemann
linuxau...@cryptomys.de wrote:
{
// define an aliasing type to perform a reinterpret cast
typedef __u32 __attribute__ (( __may_alias__ )) u32bit;
if ( *(
On Thu, Aug 2, 2012 at 10:46 AM, David Robillard d...@drobilla.net wrote:
Is there a reason Jack can't do this for everything? I am not really
keen on putting a bunch of mysterious assembler crap in a host meant to
be a relatively clean example, and it's even worse to make plugins have
to
On Thu, 2012-08-02 at 10:59 +1200, Jeff McClintock wrote:
I have adapted the GMPI requirements final draft document to a
comparison with the current state of LV2: http://lv2plug.in/gmpi.html
For historical interest. I did complete the GMPI prototype.
Now running on Windows (GUI + DSP
On Thu, Aug 2, 2012 at 12:02 PM, David Robillard d...@drobilla.net wrote:
On Thu, 2012-08-02 at 11:28 -0400, Paul Davis wrote:
On Thu, Aug 2, 2012 at 10:46 AM, David Robillard d...@drobilla.net
wrote:
Is there a reason Jack can't do this for everything? I am not
On Thu, Aug 2, 2012 at 9:40 AM, Paul Davis p...@linuxaudiosystems.comwrote:
On Thu, Aug 2, 2012 at 12:02 PM, David Robillard d...@drobilla.net wrote:
On Thu, 2012-08-02 at 11:28 -0400, Paul Davis wrote:
On Thu, Aug 2, 2012 at 10:46 AM, David Robillard d...@drobilla.net
wrote:
Am 02.08.2012 17:13, schrieb Charles Henry:
Hi Martin,
Can I pick your brain on how this works?
My biggest question is why to use the typedef__u32__attribute__ line
inside an inline function. Don't you only have to do this once? If
so, wouldn't you place that line outside the function?
On Thu, 2012-08-02 at 20:31 +0200, Martin Homuth-Rosemann wrote:
[...]
// denormals are zero
static inline float daz( float f )
{
// define an aliasing type to perform a reinterpret cast
typedef __u32 __attribute__ (( __may_alias__ )) u32bit;
if ( *( (u32bit*)f ) 0x7F00 ) // E
[David Robillard]
On Thu, 2012-08-02 at 20:31 +0200, Martin Homuth-Rosemann wrote:
[...]
// denormals are zero
static inline float daz( float f )
{
// define an aliasing type to perform a reinterpret cast
typedef __u32 __attribute__ (( __may_alias__ )) u32bit;
if ( *( (u32bit*)f )
Thanks all for the replies, I've certainly learnt a lot.
On Thu, Aug 2, 2012 at 9:11 PM, Tim Goetze t...@quitte.de wrote:
I think it's almost always a better idea to add an inaudible DC offset
or a square wave at the block interval or at Nyquist
How small is inaudible? Or better yet, how
On Thu, Aug 02, 2012 at 09:56:51PM +0100, Harry van Haaren wrote:
How small is inaudible? Or better yet, how small is way beyond inaudible,
but enough to eliminate any denormals?
The other problem is locating exactly where the problem exists: I'm using
Faust http://faust.grame.fr/ to
[Harry van Haaren]
Thanks all for the replies, I've certainly learnt a lot.
On Thu, Aug 2, 2012 at 9:11 PM, Tim Goetze t...@quitte.de wrote:
I think it's almost always a better idea to add an inaudible DC offset
or a square wave at the block interval or at Nyquist
How small is inaudible? Or
For historical interest. I did complete the GMPI prototype.
I don't suppose the code for those modular synthesis plugins is
available? :)
I release as many as possible open source. Unfortunately before I used
plugins I coded everything as part of my application, so a most of the good
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