[Csnd] Question about delay opcodes

[Csnd] Question about delay opcodes

Date	2012-08-21 03:26
From	Takahiko Tsuchiya
Subject	[Csnd] Question about delay opcodes
	Hello all, I have a question about the delayr / deltap / delayw opcodes. If I’m not misunderstanding too much, the delayr allocates a buffer to store some signal, the deltap delays and outputs the stored signal, and the delayw writes some signal into the buffer. Question is - what is the delayr actually “reading”? And from where? To me, the deltap seems to be the one reading from the delay buffer... Takahiko

Date	2012-08-21 03:34
From	Deepak
Subject	Re: [Csnd] Question about delay opcodes
	I had thought that delayr reads from the end of the buffer.... when we use delayr and delayw in conjunction, we define the buffer using delayr, for eg: aOut delayr 0.3; defines a 0.3 sec long buffer and then we can have : delayw aSig and if we have aOutFinal = aSig + aOut*feedback, the delay time would be 0.3.... with deltap we can tap at any point in the buffer..., there by having more control as to where you want to read it from... This is what I have understood..I remember reading the FLOSS manuals being helpful on this topic...had read it a while ago though... Thanks Deepak... On Mon, Aug 20, 2012 at 10:26 PM, Takahiko Tsuchiya <turbo@f.email.ne.jp> wrote: Hello all, I have a question about the delayr / deltap / delayw opcodes. If I’m not misunderstanding too much, the delayr allocates a buffer to store some signal, the deltap delays and outputs the stored signal, and the delayw writes some signal into the buffer. Question is - what is the delayr actually “reading”? And from where? To me, the deltap seems to be the one reading from the delay buffer... Takahiko -- www.myspace.com/dcompanymusic www.myspace.com/thewoodshedmusicians

Date	2012-08-21 03:45
From	Justin Smith
Subject	Re: [Csnd] Question about delay opcodes
	Yeah: once upon a time there was no such thing as deltap, so you just had delayr followed by delayw, and the delayr read silence first then eventually the output of the delayw. Deltap changes this by being able to have any additional delay between ksmps/sr seconds as the minimum and the position of the fixed delayr as the maximum. On Mon, Aug 20, 2012 at 7:34 PM, Deepak wrote: > I had thought that delayr reads from the end of the buffer.... > when we use delayr and delayw in conjunction, we define the buffer using > delayr, for eg: > aOut delayr 0.3; defines a 0.3 sec long buffer > and then we can have : > > delayw aSig > > and if we have > aOutFinal = aSig + aOut*feedback, the delay time would be 0.3.... > > with deltap we can tap at any point in the buffer..., there by having more > control as to where you want to read it from... > > This is what I have understood..I remember reading the FLOSS manuals being > helpful on this topic...had read it a while ago though... > > Thanks > Deepak... > > > > On Mon, Aug 20, 2012 at 10:26 PM, Takahiko Tsuchiya > wrote: >> >> Hello all, >> >> I have a question about the delayr / deltap / delayw opcodes. If I’m not >> misunderstanding too much, the delayr allocates a buffer to store some >> signal, the deltap delays and outputs the stored signal, and the delayw >> writes some signal into the buffer. Question is - what is the delayr >> actually “reading”? And from where? To me, the deltap seems to be the one >> reading from the delay buffer... >> >> Takahiko > > > > > -- > www.myspace.com/dcompanymusic > www.myspace.com/thewoodshedmusicians

Date	2012-08-21 04:09
From	Takahiko Tsuchiya
Subject	Re: [Csnd] Question about delay opcodes
	Thanks Deepak for the quick answer. I misunderstood like the delayr was solely for creating a temp buffer. Reading the floss manual page now! (http://en.flossmanuals.net/csound/d-delay-and-feedback/) Takahiko On Mon, Aug 20, 2012 at 10:34 PM, Deepak <musicmagic@gmail.com> wrote: I had thought that delayr reads from the end of the buffer.... when we use delayr and delayw in conjunction, we define the buffer using delayr, for eg: aOut delayr 0.3; defines a 0.3 sec long buffer and then we can have : delayw aSig and if we have aOutFinal = aSig + aOut*feedback, the delay time would be 0.3.... with deltap we can tap at any point in the buffer..., there by having more control as to where you want to read it from... This is what I have understood..I remember reading the FLOSS manuals being helpful on this topic...had read it a while ago though... Thanks Deepak... On Mon, Aug 20, 2012 at 10:26 PM, Takahiko Tsuchiya <turbo@f.email.ne.jp> wrote: Hello all, I have a question about the delayr / deltap / delayw opcodes. If I’m not misunderstanding too much, the delayr allocates a buffer to store some signal, the deltap delays and outputs the stored signal, and the delayw writes some signal into the buffer. Question is - what is the delayr actually “reading”? And from where? To me, the deltap seems to be the one reading from the delay buffer... Takahiko -- www.myspace.com/dcompanymusic www.myspace.com/thewoodshedmusicians

Date	2012-08-21 04:10
From	"Dr. Richard Boulanger"
Subject	Re: [Csnd] Question about delay opcodes
	also - remember to read the Pinkston chapter in The Csound Book. -dB ___________________________________ Dr. Richard Boulanger, Ph.D. Professor of Electronic Production and Design Professional Writing and Music Technology Division Berklee College of Music 1140 Boylston Street Boston, MA 02215-3693 617-747-2485 (office) 774-488-9166 (cell) rboulanger@berklee.edu http://csounds.com/boulanger ____________________________________ http://boulangerlabs.com http://csoundforlive.com http://csounds.com ____________________________________ http://csounds.com/mathews ____________________________________ On Aug 20, 2012, at 11:09 PM, Takahiko Tsuchiya <turbo@f.email.ne.jp> wrote: Thanks Deepak for the quick answer. I misunderstood like the delayr was solely for creating a temp buffer. Reading the floss manual page now! (http://en.flossmanuals.net/csound/d-delay-and-feedback/) Takahiko On Mon, Aug 20, 2012 at 10:34 PM, Deepak <musicmagic@gmail.com> wrote: I had thought that delayr reads from the end of the buffer.... when we use delayr and delayw in conjunction, we define the buffer using delayr, for eg: aOut delayr 0.3; defines a 0.3 sec long buffer and then we can have : delayw aSig and if we have aOutFinal = aSig + aOut*feedback, the delay time would be 0.3.... with deltap we can tap at any point in the buffer..., there by having more control as to where you want to read it from... This is what I have understood..I remember reading the FLOSS manuals being helpful on this topic...had read it a while ago though... Thanks Deepak... On Mon, Aug 20, 2012 at 10:26 PM, Takahiko Tsuchiya <turbo@f.email.ne.jp> wrote: Hello all, I have a question about the delayr / deltap / delayw opcodes. If I’m not misunderstanding too much, the delayr allocates a buffer to store some signal, the deltap delays and outputs the stored signal, and the delayw writes some signal into the buffer. Question is - what is the delayr actually “reading”? And from where? To me, the deltap seems to be the one reading from the delay buffer... Takahiko -- www.myspace.com/dcompanymusic www.myspace.com/thewoodshedmusicians

Date	2012-08-21 04:45
From	Takahiko Tsuchiya
Subject	Re: [Csnd] Question about delay opcodes
	Thanks Justin, it's getting clearer. Dr. B, I read the chapter roughly before asking this question, but I will go back to it. Thanks. Takahiko On Mon, Aug 20, 2012 at 11:10 PM, Dr. Richard Boulanger <rboulanger@berklee.edu> wrote: also - remember to read the Pinkston chapter in The Csound Book. -dB ___________________________________ Dr. Richard Boulanger, Ph.D. Professor of Electronic Production and Design Professional Writing and Music Technology Division Berklee College of Music 1140 Boylston Street Boston, MA 02215-3693 617-747-2485 (office) 774-488-9166 (cell) rboulanger@berklee.edu http://csounds.com/boulanger ____________________________________ http://boulangerlabs.com http://csoundforlive.com http://csounds.com ____________________________________ http://csounds.com/mathews ____________________________________ On Aug 20, 2012, at 11:09 PM, Takahiko Tsuchiya <turbo@f.email.ne.jp> wrote: Thanks Deepak for the quick answer. I misunderstood like the delayr was solely for creating a temp buffer. Reading the floss manual page now! (http://en.flossmanuals.net/csound/d-delay-and-feedback/) Takahiko On Mon, Aug 20, 2012 at 10:34 PM, Deepak <musicmagic@gmail.com> wrote: I had thought that delayr reads from the end of the buffer.... when we use delayr and delayw in conjunction, we define the buffer using delayr, for eg: aOut delayr 0.3; defines a 0.3 sec long buffer and then we can have : delayw aSig and if we have aOutFinal = aSig + aOut*feedback, the delay time would be 0.3.... with deltap we can tap at any point in the buffer..., there by having more control as to where you want to read it from... This is what I have understood..I remember reading the FLOSS manuals being helpful on this topic...had read it a while ago though... Thanks Deepak... On Mon, Aug 20, 2012 at 10:26 PM, Takahiko Tsuchiya <turbo@f.email.ne.jp> wrote: Hello all, I have a question about the delayr / deltap / delayw opcodes. If I’m not misunderstanding too much, the delayr allocates a buffer to store some signal, the deltap delays and outputs the stored signal, and the delayw writes some signal into the buffer. Question is - what is the delayr actually “reading”? And from where? To me, the deltap seems to be the one reading from the delay buffer... Takahiko -- www.myspace.com/dcompanymusic www.myspace.com/thewoodshedmusicians