On Jun 16, 2014, at 7:51 PM, robert bristow-johnson r...@audioimagination.com
wrote:
one thing that is hard to replicate is a sample rate that is infinity (which
is how i understand continuous-time signals to be). but i don't think you
should need to have such a high sample rate. one thing
Hi,
I've only the vaguest idea of this area but I do find it interesting. From
what you said, Nigel, aliasing is the main issue. Is it the case then that
amp modeling would be more or less a solved problem if you could sample at
arbitrarily high rates?
Cheers,
Aengus.
On Tue, Jun 17, 2014 at
I'm aquainted to DSP and analogue electronics and have played a lot of
guitar over the last 18 years.. I still think there is nothing like the
sound of a good old valve amp..
On Tue, Jun 17, 2014 at 10:13 AM, Thomaz Oliveira thomazcha...@gmail.com
wrote:
I have made some simulations of valve
I have made some simulations of valve amps.. I have writen some articles
and a PHD thesis on why these amps are so hard to model...
I'm sending you the link of one article on this topic:
if you have any questions about simulation of valve amps please contact me.
here is the link:
On 6/17/14 9:15 AM, Thomaz Oliveira wrote:
I'm aquainted to DSP and analogue electronics and have played a lot of
guitar over the last 18 years.. I still think there is nothing like the
sound of a good old valve amp..
as are the analog mini-moogs as such from the day. as are a bunch of
On 6/17/14 5:30 AM, Nigel Redmon wrote:
Well…yes, aliasing is the main issue that separates the digital world from
analog when it comes to amp modeling, but no, I don’t think it’s the main issue
in simulating a good amp :-)
There are a lot of details in simulating classic amps—the controls of
On 6/17/14 12:41 PM, ro...@khitchdee.com wrote:
You should be able to take one that sounds sweet, model its parameters based on
theory then scope it and measure stuff to calibrate.
exactly. and the way i would scope it would be dig out 8 or more
channels of Pro Tools (or whatever
If you had measurement mics with flat response and access to a local music
studio, you should be able to scope the box also.
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On 6/17/14 12:57 PM, Nigel Redmon wrote:
On Jun 17, 2014, at 9:09 AM, robert bristow-johnsonr...@audioimagination.com
wrote:
On 6/17/14 5:30 AM, Nigel Redmon wrote:
...
Anyway, just keep in mind that the particular classic amps don’t sound better
simply because they are analog. They
On 6/17/14 1:38 PM, ro...@khitchdee.com wrote:
If you had measurement mics with flat response and access to a local music
studio, you should be able to scope the box also
sure, but with all those goofy non-linear and non-memoryless functions
going on inside the box, it's really a bitch to
If you modelled the system for all cases, that would make your task much more
complicated. It would be much simpler to model sweet spots. Perhaps fix the
guitar that sends in inputs. Narrow the range of the amps and the EQs. Even
tune to playing styles of guitarists. All these steps help
Looks interesting. I wonder how symbolic regression is substantially
different from genetic programming.
And speaking of modeling by way of function approximation, I've often
wondered why I have such a difficult time finding anything on the topic of
oversampling in the context of neural networks
On 2014-06-17, robert bristow-johnson wrote:
And the cabinets are a huge part of the sound.
*that*, and the loudspeakers themselves, is the hardest part, no?
it's all three: 1. salient (so you can't ignore it), 2. non-linear,
and 3. non-memoryless.
From what (very little!) I know of
This is getting…nesty...
On Jun 17, 2014, at 10:42 AM, robert bristow-johnson
r...@audioimagination.com wrote:
On 6/17/14 12:57 PM, Nigel Redmon wrote:
On Jun 17, 2014, at 9:09 AM, robert
bristow-johnsonr...@audioimagination.com wrote:
On 6/17/14 5:30 AM, Nigel Redmon wrote:
...
On 6/17/14 3:30 PM, Nigel Redmon wrote:
This is getting…nesty...
yah 'vell, vot 'r ya gonna do? :-)
On Jun 17, 2014, at 10:42 AM, robert bristow-johnsonr...@audioimagination.com
wrote:
On 6/17/14 12:57 PM, Nigel Redmon wrote:
On Jun 17, 2014, at 9:09 AM, robert
(Thinking outside the nest…)
(...maybe that means opening up the LPF as the gain knob setting is reduced)
Yes
And good discussion elsewhere in there, thanks Robert.
On Jun 17, 2014, at 4:07 PM, robert bristow-johnson r...@audioimagination.com
wrote:
On 6/17/14 3:30 PM, Nigel Redmon wrote:
On 6/17/14 8:24 PM, Nigel Redmon wrote:
(Thinking outside the nest…)
(...maybe that means opening up the LPF as the gain knob setting is reduced)
Yes
And good discussion elsewhere in there, thanks Robert.
yer welcome, i guess.
you may be thinking outside the nest; i'm just thinking out
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