Re: [LAU] [ANN] Bristol 0.60.0 Command Line Interface

Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
To: <julien@...>, <countfuzzball@...>
Cc: <linux-audio-user@...>
Date: Wednesday, April 21, 2010 - 12:49 pm

--_7a4ba1d5-1ba4-4222-9f9a-69331fb9b1d1_
Content-Type: text/plain; charset="Windows-1252"
Content-Transfer-Encoding: quoted-printable

To get this now you need to select Unison=2C and start bristol with the par=
ameters
below. In the current release the code does a default invocation of the emu=
lator
parameters which limit the voices to something like the original=2C eg=2C t=
he mini gets
a single voice (that rolls all the time irrespective of what notes you give=
it) and
the Prophet-5 gets=2C er=2C five. It should introduce a little 'detune' to =
make the sound
move a bit more but. It is pretty arbitrary detune=2C it doesn't change wit=
h time=2C only
with key events and I was considering making it a bit more like temperature=
drift
over time which at the moment it isn't.

startBristol -prophet -voices 32

When you select the emulator I configure some defaults that get reported in=
the
output. The assigned voices should all get a different amount of detune as =
that is
how it is coded.

Andrew reported that this 32 voice unison=2C dual oscillator synth=2C curre=
ntly uses=20
about 65% CPU on a 2.X GHz processor=2C or about 2% per voice although you=
=20
will need a late 0.50 or 0.60 to do that. Previous releases (0.40) required=
a bit
more CPU=2C about 10% per voice=2C which means this same attempt would make=
=20
Jack very=2C very unhappy - a realtime thread asking for 320% CPU. This was=
one
of the main reasons bristol was not really considered to be RT safe (there =
were
other reasons too but they should also have been removed in the later relea=
ses).

The CPU footprint can be reduced further by selecting -lwf=2C or light weig=
ht
filters=2C they should cut a half off again for a small change in quality. =
If you=20
want to use more CPU you can too=2C documented in the ChangeLog.

Regards=2C Nick.

"we have to make sure the old choice [Windows] doesn't disappear=94.
Jim Wong=2C president of IT products=2C Acer

> Date: Wed=2C 21 Apr 2010 11:49:56 +0200

:-)=20
=20
_________________________________________________________________
Hotmail: Powerful Free email with security by Microsoft.
https://signup.live.com/signup.aspx?id=3D60969=

--_7a4ba1d5-1ba4-4222-9f9a-69331fb9b1d1_
Content-Type: text/html; charset="Windows-1252"
Content-Transfer-Encoding: quoted-printable

To get this now you need to select Unison=2C and start bristol with the par=
ametersbelow. In the current release the code does a default invocation=
of the emulatorparameters which limit the voices to something like the=
original=2C eg=2C the mini getsa single voice (that rolls all the time=
irrespective of what notes you give it) andthe Prophet-5 gets=2C er=2C=
five. It should introduce a little 'detune' to make the soundmove a bi=
t more but. It is pretty arbitrary detune=2C it doesn't change with time=2C=
onlywith key events and I was considering making it a bit more like te=
mperature driftover time which at the moment it isn't.startBris=
tol -prophet -voices 32When you select the emulator I configure som=
e defaults that get reported in theoutput. The assigned voices should a=
ll get a different amount of detune as that ishow it is coded.A=
ndrew reported that this 32 voice unison=2C dual oscillator synth=2C curren=
tly uses about 65% CPU on a 2.X GHz processor=2C or about 2% per voice =
although you will need a late 0.50 or 0.60 to do that. Previous release=
s (0.40) required a bitmore CPU=2C about 10% per voice=2C which means t=
his same attempt would make Jack very=2C very unhappy - a realtime thre=
ad asking for 320% CPU. This was oneof the main reasons bristol was not=
really considered to be RT safe (there wereother reasons too but they =
should also have been removed in the later releases).The CPU footpr=
int can be reduced further by selecting -lwf=2C or light weightfilters=
=2C they should cut a half off again for a small change in quality. If you =
want to use more CPU you can too=2C documented in the ChangeLog.Regards=2C Nick."we have to make sure the old choice [Windows] doe=
sn't disappear=94.Jim Wong=2C president of IT products=2C Acer<=
br>&gt=3B Date: Wed=2C 21 Apr 2010 11:49:56 +0200&gt=3B From: j=
ulien@c-lab.de&gt=3B To: countfuzzball@gmail.com&gt=3B CC: linux-au=
dio-user@lists.linuxaudio.org&gt=3B Subject: Re: [LAU] [ANN] Bristol 0.=
60.0 Command Line Interface&gt=3B &gt=3B Hi Andrew!&gt=3B Th=
at'd be cool! I'm curious to hear them. 64 oscillator unison indeed. :-) &gt=3B Wow!&gt=3B Kindest regards&gt=3B Julien=
&gt=3B &gt=3B --------&gt=3B Music was my first love and it will be=
my last (John Miles)&gt=3B &gt=3B =3D=3D=3D=3D=3D=3D=3D=3D FIND MY=
WEB-PROJECT AT: =3D=3D=3D=3D=3D=3D=3D=3D&gt=3B http://ltsb.sourceforge=
.net&gt=3B the Linux TextBased Studio guide&gt=3B =3D=3D=3D=3D=3D=
=3D=3D AND MY PERSONAL PAGES AT: =3D=3D=3D=3D=3D=3D=3D&gt=3B http://www=
.juliencoder.de&gt=3B _______________________________________________&gt=3B Linux-audio-user mailing list&gt=3B Linux-audio-user@lists.lin=
uxaudio.org&gt=3B http://lists.linuxaudio.org/listinfo/linux-audio-user=
Hotmail: Powerful Free email with security by M=
icrosoft. Get it now.
=

--_7a4ba1d5-1ba4-4222-9f9a-69331fb9b1d1_--

Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]

Messages in current thread:
[LAU] [ANN] Bristol 0.60.0 Command Line Interface, Nick Copeland, (Mon Apr 19, 10:55 am)
Re: [LAU] [ANN] Bristol 0.60.0 Command Line Interface, Julien Claassen, (Wed Apr 21, 9:50 am)
Re: [LAU] [ANN] Bristol 0.60.0 Command Line Interface, Nick Copeland, (Wed Apr 21, 12:49 pm)
Re: [LAU] [ANN] Bristol 0.60.0 Command Line Interface, Julien Claassen, (Wed Apr 21, 7:32 pm)
Re: [LAU] [ANN] Bristol 0.60.0 Command Line Interface, Gwenhwyfaer, (Mon Apr 19, 11:28 am)
Re: [LAU] [ANN] Bristol 0.60.0 Command Line Interface, Julien Claassen, (Mon Apr 19, 11:33 am)
Re: [LAU] [ANN] Bristol 0.60.0 Command Line Interface, rosea.grammostola, (Mon Apr 19, 11:21 am)