(in addition to what victor explained:)

i'd say: NEVER use oscil and its decendents. they do certainly have 
their rights for historical reasons, but are by force imprecise. i'd 
recommend the use of poscil as a standard, and poscil3 in some cases. 
see the attached csd for the reason.

it's great you transform some of farnells examples to csound! can you 
share the results?

best -

	joachim



Am 28.02.2013 20:14, schrieb Anton Kholomiov:
> I'm trying to work through Designing Sound by Andy Farnell with Csound,
> but my implementation sounds not so good as Pd's ones (author of the
> book uses Pd).
> I suspect that Pd's filters are not the same as Csound's ones. Do you
> know what
> are the Csounds counterparts for Pd's filters (hip, lop, bp) and to my ears
> osc sounds much better than oscil1 with 16384 gen table. Is it possible
> to implement this unit with Csound?
>
> Anton

I'd say oscili and oscil3 are not too bad really.

Oscil is dire.

Victor
On 5 Mar 2013, at 16:14, joachim heintz wrote:

> (in addition to what victor explained:)
> 
> i'd say: NEVER use oscil and its decendents. they do certainly have their rights for historical reasons, but are by force imprecise. i'd recommend the use of poscil as a standard, and poscil3 in some cases. see the attached csd for the reason.
> 
> it's great you transform some of farnells examples to csound! can you share the results?
> 
> best -
> 
> 	joachim
> 
> 
> 
> Am 28.02.2013 20:14, schrieb Anton Kholomiov:
>> I'm trying to work through Designing Sound by Andy Farnell with Csound,
>> but my implementation sounds not so good as Pd's ones (author of the
>> book uses Pd).
>> I suspect that Pd's filters are not the same as Csound's ones. Do you
>> know what
>> are the Csounds counterparts for Pd's filters (hip, lop, bp) and to my ears
>> osc sounds much better than oscil1 with 16384 gen table. Is it possible
>> to implement this unit with Csound?
>> 
>> Anton
> 
> Send bugs reports to the Sourceforge bug tracker
>           https://sourceforge.net/tracker/?group_id=81968&atid=564599
> Discussions of bugs and features can be posted here
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
> 
> 

Dr Victor Lazzarini
Senior Lecturer
Dept. of Music
NUI Maynooth Ireland
tel.: +353 1 708 3545
Victor dot Lazzarini AT nuim dot ie

Oscil might be dire, but it's nice to have at least one
non-interpolating oscillator.

On 03/05/2013 11:14 AM, joachim heintz wrote:
>
>
> it's great you transform some of farnells examples to csound! can you 
> share the results?
>

Yes, please do ! Designing Sound is a great book, it would be wonderful 
to see its examples in Csound. That's quite a project.

Best,

dp

Jim Hearon did a good review of oscillators in the Csound Journal a while back:

http://www.csounds.com/journal/2006spring/oscillatorsTour.html



On Tue, Mar 5, 2013 at 4:14 PM, joachim heintz  wrote:
> (in addition to what victor explained:)
>
> i'd say: NEVER use oscil and its decendents. they do certainly have their
> rights for historical reasons, but are by force imprecise. i'd recommend the
> use of poscil as a standard, and poscil3 in some cases. see the attached csd
> for the reason.
>
> it's great you transform some of farnells examples to csound! can you share
> the results?
>
> best -
>
>         joachim
>
>
>
> Am 28.02.2013 20:14, schrieb Anton Kholomiov:
>
>> I'm trying to work through Designing Sound by Andy Farnell with Csound,
>> but my implementation sounds not so good as Pd's ones (author of the
>> book uses Pd).
>> I suspect that Pd's filters are not the same as Csound's ones. Do you
>> know what
>> are the Csounds counterparts for Pd's filters (hip, lop, bp) and to my
>> ears
>> osc sounds much better than oscil1 with 16384 gen table. Is it possible
>> to implement this unit with Csound?
>>
>> Anton
>
>
> Send bugs reports to the Sourceforge bug tracker
>            https://sourceforge.net/tracker/?group_id=81968&atid=564599
> Discussions of bugs and features can be posted here
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe
> csound"
>

thanks for the link, steven. i had a look, and i think there is 
definitely something wrong with the result of poscil in the article. 
either the code has changed since then, or jim happend to get something 
wrong here. the manual states: "poscil (precise oscillator) is the same 
as oscili, but allows etc". and indeed, it *does* interpolate very 
similar to oscili. i have tested it with this csd which does more or 
less the same as jim's code in his article:



0dbfs = 1
nchnls = 2
giSine ftgen 0, 0, 16, 10, 1
instr 1
aOutL oscil 1, 100, giSine
aOutR poscil 1, 100, giSine
outs aOutL, aOutR
endin


i 1 0 .01



the result shows clearly that poscil does in no way lead to similar 
results as oscil - see the attached screen shot. so i don't know how it 
comes to the picture which is shown in ftable 10 in the article. perhaps 
there was a bug in the code which has been fixed thanks to the article?

best -
	
	joachim


ps: with my "oscil and its descendents" i did not mean oscili and oscil3 
but only the non-interpolating ones like oscil1. except it makes sense 
to have no interpolation.


Am 06.03.2013 13:13, schrieb Steven Yi:
> Jim Hearon did a good review of oscillators in the Csound Journal a while back:
>
> http://www.csounds.com/journal/2006spring/oscillatorsTour.html
>
>
>
> On Tue, Mar 5, 2013 at 4:14 PM, joachim heintz  wrote:
>> (in addition to what victor explained:)
>>
>> i'd say: NEVER use oscil and its decendents. they do certainly have their
>> rights for historical reasons, but are by force imprecise. i'd recommend the
>> use of poscil as a standard, and poscil3 in some cases. see the attached csd
>> for the reason.
>>
>> it's great you transform some of farnells examples to csound! can you share
>> the results?
>>
>> best -
>>
>>          joachim
>>
>>
>>
>> Am 28.02.2013 20:14, schrieb Anton Kholomiov:
>>
>>> I'm trying to work through Designing Sound by Andy Farnell with Csound,
>>> but my implementation sounds not so good as Pd's ones (author of the
>>> book uses Pd).
>>> I suspect that Pd's filters are not the same as Csound's ones. Do you
>>> know what
>>> are the Csounds counterparts for Pd's filters (hip, lop, bp) and to my
>>> ears
>>> osc sounds much better than oscil1 with 16384 gen table. Is it possible
>>> to implement this unit with Csound?
>>>
>>> Anton
>>
>>
>> Send bugs reports to the Sourceforge bug tracker
>>             https://sourceforge.net/tracker/?group_id=81968&atid=564599
>> Discussions of bugs and features can be posted here
>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe
>> csound"
>>
>
>
> Send bugs reports to the Sourceforge bug tracker
>              https://sourceforge.net/tracker/?group_id=81968&atid=564599
> Discussions of bugs and features can be posted here
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
>
>

well, i have taken the same table size as jim did; and i think his 
choice is reasonable to see what is happening with interpolation.

and: yes, it is floating point interpolation what poscil does, but in 
jim's article was stated that poscil does not do any interpolation at all:
"Poscil - Does not provide interpolation and uses only the input 
tables's 16 point values."
(http://www.csounds.com/journal/2006spring/oscillatorsTour.html - summary)

that exactly was the point at which i said, something must be wrong with 
this result in the article.

	joachim


Am 12.03.2013 13:41, schrieb Justin Smith:
> I think that is just the difference between no interpolation (oscil) and
> floating point interpolation (poscil)
>
> Also, a 16 point wave table is almost comically small - and if the point
> was to show how extreme the difference between interpolation and non
> interpolation is, why not a 2 point table?
>
>
> On Mon, Mar 11, 2013 at 10:44 AM, joachim heintz  > wrote:
>
>     thanks for the link, steven. i had a look, and i think there is
>     definitely something wrong with the result of poscil in the article.
>     either the code has changed since then, or jim happend to get
>     something wrong here. the manual states: "poscil (precise
>     oscillator) is the same as oscili, but allows etc". and indeed, it
>     *does* interpolate very similar to oscili. i have tested it with
>     this csd which does more or less the same as jim's code in his article:
>
>     
>     
>     0dbfs = 1
>     nchnls = 2
>     giSine ftgen 0, 0, 16, 10, 1
>     instr 1
>     aOutL oscil 1, 100, giSine
>     aOutR poscil 1, 100, giSine
>     outs aOutL, aOutR
>     endin
>     
>     
>     i 1 0 .01
>     
>     
>
>     the result shows clearly that poscil does in no way lead to similar
>     results as oscil - see the attached screen shot. so i don't know how
>     it comes to the picture which is shown in ftable 10 in the article.
>     perhaps there was a bug in the code which has been fixed thanks to
>     the article?
>
>     best -
>
>              joachim
>
>
>     ps: with my "oscil and its descendents" i did not mean oscili and
>     oscil3 but only the non-interpolating ones like oscil1. except it
>     makes sense to have no interpolation.
>
>
>     Am 06.03.2013 13:13, schrieb Steven Yi:
>
>         Jim Hearon did a good review of oscillators in the Csound
>         Journal a while back:
>
>         http://www.csounds.com/__journal/2006spring/__oscillatorsTour.html
>         
>
>
>
>         On Tue, Mar 5, 2013 at 4:14 PM, joachim heintz
>         > wrote:
>
>             (in addition to what victor explained:)
>
>             i'd say: NEVER use oscil and its decendents. they do
>             certainly have their
>             rights for historical reasons, but are by force imprecise.
>             i'd recommend the
>             use of poscil as a standard, and poscil3 in some cases. see
>             the attached csd
>             for the reason.
>
>             it's great you transform some of farnells examples to
>             csound! can you share
>             the results?
>
>             best -
>
>                       joachim
>
>
>
>             Am 28.02.2013 20:14, schrieb Anton Kholomiov:
>
>                 I'm trying to work through Designing Sound by Andy
>                 Farnell with Csound,
>                 but my implementation sounds not so good as Pd's ones
>                 (author of the
>                 book uses Pd).
>                 I suspect that Pd's filters are not the same as Csound's
>                 ones. Do you
>                 know what
>                 are the Csounds counterparts for Pd's filters (hip, lop,
>                 bp) and to my
>                 ears
>                 osc sounds much better than oscil1 with 16384 gen table.
>                 Is it possible
>                 to implement this unit with Csound?
>
>                 Anton
>
>
>
>             Send bugs reports to the Sourceforge bug tracker
>             https://sourceforge.net/__tracker/?group_id=81968&atid=__564599
>             
>             Discussions of bugs and features can be posted here
>             To unsubscribe, send email sympa@lists.bath.ac.uk
>              with body "unsubscribe
>             csound"
>
>
>
>         Send bugs reports to the Sourceforge bug tracker
>         https://sourceforge.net/__tracker/?group_id=81968&atid=__564599
>         
>         Discussions of bugs and features can be posted here
>         To unsubscribe, send email sympa@lists.bath.ac.uk
>          with body "unsubscribe csound"
>
>
>
>
>     Send bugs reports to the Sourceforge bug tracker
>     https://sourceforge.net/__tracker/?group_id=81968&atid=__564599
>     
>     Discussions of bugs and features can be posted here
>     To unsubscribe, send email sympa@lists.bath.ac.uk
>      with body "unsubscribe csound"
>
>