[Csnd] Manual example for lfo, question/error

[Csnd] Manual example for lfo, question/error

Date	2024-09-01 14:17
From	Oeyvind Brandtsegg
Subject	[Csnd] Manual example for lfo, question/error
	Hi, I stumbled upon this while marking student assignments. I wanted to double check the manual for the lfo opcode. So I also checked the example (example 500 Advanced example of the lfo opcode). The delay time for vdelay will be modulated in strange ways, as kAmpDELAY1 goes negative: kAmpDELAY1 lfo, 100, 1.35, 1 kAmpDELAY1 = kAmpDELAY1 + 50 ; DELAY SIGNAL adel1 vdelay asig1, kAmpDELAY1, 500 not sure what to do about it but thought I'd let someone know ;-) Øyvind Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2024-09-01 15:22
From	Victor Lazzarini <000010b17ddd988e-dmarc-request@LISTSERV.HEANET.IE>
Subject	Re: [Csnd] [EXTERNAL] [Csnd] Manual example for lfo, question/error
	The code in question is: buf[indx] = in[nn]; fv1 = indx - fdel * esr; /* Make sure inside the buffer / / * See comment above--same fix applied here. heh 981101 / while (UNLIKELY(fv1 < FL(0.0))) fv1 += (MYFLT)maxd; while (UNLIKELY(fv1 >= (MYFLT)maxd)) fv1 -= (MYFLT)maxd; and fdel is the delay time input. There is no check to make sure it's non-negative, so there’s a wraparound. Not the right thing in my book, but I didn’t write it. As usual, we can’t change it. I don’t think it is documented. Maybe one for the manual issues. ======================== Prof. Victor Lazzarini Maynooth University Ireland > On 1 Sep 2024, at 14:17, Oeyvind Brandtsegg wrote: > > Warning* > This email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe. > Hi, > > I stumbled upon this while marking student assignments. I wanted to double check the manual for the lfo opcode. So I also checked the example (example 500 Advanced example of the lfo opcode). > The delay time for vdelay will be modulated in strange ways, as kAmpDELAY1 goes negative: > > kAmpDELAY1 lfo, 100, 1.35, 1 kAmpDELAY1 = kAmpDELAY1 + 50 ; DELAY SIGNAL adel1 vdelay asig1, kAmpDELAY1, 500 > > not sure what to do about it but thought I'd let someone know ;-) > Øyvind > > Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2024-09-01 19:15
From	Oeyvind Brandtsegg
Subject	Re: [Csnd] [EXTERNAL] [Csnd] Manual example for lfo, question/error
	Thanks for the clarification re vdelay, but what I intended to say is that the advanced manual example for lfo should perhaps be changed, so it generates valid delay times(?) It says ; By Stefano Cucchi 2020 Maybe if Stefano is here, he would chime in. all best Øyvind søn. 1. sep. 2024 kl. 16:22 skrev Victor Lazzarini <000010b17ddd988e-dmarc-request@listserv.heanet.ie>: The code in question is: buf[indx] = in[nn]; fv1 = indx - fdel * esr; /* Make sure inside the buffer / / * See comment above--same fix applied here. heh 981101 / while (UNLIKELY(fv1 < FL(0.0))) fv1 += (MYFLT)maxd; while (UNLIKELY(fv1 >= (MYFLT)maxd)) fv1 -= (MYFLT)maxd; and fdel is the delay time input. There is no check to make sure it's non-negative, so there’s a wraparound. Not the right thing in my book, but I didn’t write it. As usual, we can’t change it. I don’t think it is documented. Maybe one for the manual issues. ======================== Prof. Victor Lazzarini Maynooth University Ireland > On 1 Sep 2024, at 14:17, Oeyvind Brandtsegg <obrandts@GMAIL.COM> wrote: > > Warning* > This email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe. > Hi, > > I stumbled upon this while marking student assignments. I wanted to double check the manual for the lfo opcode. So I also checked the example (example 500 Advanced example of the lfo opcode). > The delay time for vdelay will be modulated in strange ways, as kAmpDELAY1 goes negative: > > kAmpDELAY1 lfo, 100, 1.35, 1 kAmpDELAY1 = kAmpDELAY1 + 50 ; DELAY SIGNAL adel1 vdelay asig1, kAmpDELAY1, 500 > > not sure what to do about it but thought I'd let someone know ;-) > Øyvind > > Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2024-09-01 19:52
From	Victor Lazzarini <000010b17ddd988e-dmarc-request@LISTSERV.HEANET.IE>
Subject	Re: [Csnd] [EXTERNAL] [Csnd] Manual example for lfo, question/error
	That and perhaps saying for vdelay that delaytime is modulo max delay. Prof. Victor Lazzarini Maynooth University Ireland On 1 Sep 2024, at 19:15, Oeyvind Brandtsegg <obrandts@gmail.com> wrote: Thanks for the clarification re vdelay, but what I intended to say is that the advanced manual example for lfo should perhaps be changed, so it generates valid delay times(?) It says ; By Stefano Cucchi 2020 Maybe if Stefano is here, he would chime in. all best Øyvind søn. 1. sep. 2024 kl. 16:22 skrev Victor Lazzarini <000010b17ddd988e-dmarc-request@listserv.heanet.ie>: The code in question is: buf[indx] = in[nn]; fv1 = indx - fdel * esr; /* Make sure inside the buffer / / * See comment above--same fix applied here. heh 981101 / while (UNLIKELY(fv1 < FL(0.0))) fv1 += (MYFLT)maxd; while (UNLIKELY(fv1 >= (MYFLT)maxd)) fv1 -= (MYFLT)maxd; and fdel is the delay time input. There is no check to make sure it's non-negative, so there’s a wraparound. Not the right thing in my book, but I didn’t write it. As usual, we can’t change it. I don’t think it is documented. Maybe one for the manual issues. ======================== Prof. Victor Lazzarini Maynooth University Ireland > On 1 Sep 2024, at 14:17, Oeyvind Brandtsegg <obrandts@GMAIL.COM> wrote: > > Warning* > This email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe. > Hi, > > I stumbled upon this while marking student assignments. I wanted to double check the manual for the lfo opcode. So I also checked the example (example 500 Advanced example of the lfo opcode). > The delay time for vdelay will be modulated in strange ways, as kAmpDELAY1 goes negative: > > kAmpDELAY1 lfo, 100, 1.35, 1 kAmpDELAY1 = kAmpDELAY1 + 50 ; DELAY SIGNAL adel1 vdelay asig1, kAmpDELAY1, 500 > > not sure what to do about it but thought I'd let someone know ;-) > Øyvind > > Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2024-09-01 20:37
From	Partev Sarkissian <0000060b2ef1338e-dmarc-request@LISTSERV.HEANET.IE>
Subject	Re: [Csnd] [EXTERNAL] [Csnd] Manual example for lfo, question/error
	As I recall from books by Julius Smith, that there is a difference between fdelay and vdelay. -Partev On Sunday, September 1, 2024 at 07:53:07 PM GMT+1, Victor Lazzarini <000010b17ddd988e-dmarc-request@listserv.heanet.ie> wrote: That and perhaps saying for vdelay that delaytime is modulo max delay. Prof. Victor Lazzarini Maynooth University Ireland On 1 Sep 2024, at 19:15, Oeyvind Brandtsegg <obrandts@gmail.com> wrote: Thanks for the clarification re vdelay, but what I intended to say is that the advanced manual example for lfo should perhaps be changed, so it generates valid delay times(?) It says ; By Stefano Cucchi 2020 Maybe if Stefano is here, he would chime in. all best Øyvind søn. 1. sep. 2024 kl. 16:22 skrev Victor Lazzarini <000010b17ddd988e-dmarc-request@listserv.heanet.ie>: The code in question is: buf[indx] = in[nn]; fv1 = indx - fdel * esr; /* Make sure inside the buffer / / * See comment above--same fix applied here. heh 981101 / while (UNLIKELY(fv1 < FL(0.0))) fv1 += (MYFLT)maxd; while (UNLIKELY(fv1 >= (MYFLT)maxd)) fv1 -= (MYFLT)maxd; and fdel is the delay time input. There is no check to make sure it's non-negative, so there’s a wraparound. Not the right thing in my book, but I didn’t write it. As usual, we can’t change it. I don’t think it is documented. Maybe one for the manual issues. ======================== Prof. Victor Lazzarini Maynooth University Ireland > On 1 Sep 2024, at 14:17, Oeyvind Brandtsegg <obrandts@GMAIL.COM> wrote: > > Warning* > This email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe. > Hi, > > I stumbled upon this while marking student assignments. I wanted to double check the manual for the lfo opcode. So I also checked the example (example 500 Advanced example of the lfo opcode). > The delay time for vdelay will be modulated in strange ways, as kAmpDELAY1 goes negative: > > kAmpDELAY1 lfo, 100, 1.35, 1 kAmpDELAY1 = kAmpDELAY1 + 50 ; DELAY SIGNAL adel1 vdelay asig1, kAmpDELAY1, 500 > > not sure what to do about it but thought I'd let someone know ;-) > Øyvind > > Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2024-09-01 20:50
From	Partev Sarkissian <0000060b2ef1338e-dmarc-request@LISTSERV.HEANET.IE>
Subject	Re: [Csnd] [EXTERNAL] [Csnd] Manual example for lfo, question/error
	While looking this up in the manual, came across a spelling error while in the "f" opcodes. faustaudio — Instantiates and runs a compiled Faust program. faustdsp — Instantiates a Faust program. I don't think it's instantaneous, so I'm guessing "initiates". Could be confusing, did a double-take myself, thought I'd give a heads up on that. -Partev On Sunday, September 1, 2024 at 08:38:11 PM GMT+1, Partev Sarkissian <0000060b2ef1338e-dmarc-request@listserv.heanet.ie> wrote: As I recall from books by Julius Smith, that there is a difference between fdelay and vdelay. -Partev On Sunday, September 1, 2024 at 07:53:07 PM GMT+1, Victor Lazzarini <000010b17ddd988e-dmarc-request@listserv.heanet.ie> wrote: That and perhaps saying for vdelay that delaytime is modulo max delay. Prof. Victor Lazzarini Maynooth University Ireland On 1 Sep 2024, at 19:15, Oeyvind Brandtsegg <obrandts@gmail.com> wrote: Thanks for the clarification re vdelay, but what I intended to say is that the advanced manual example for lfo should perhaps be changed, so it generates valid delay times(?) It says ; By Stefano Cucchi 2020 Maybe if Stefano is here, he would chime in. all best Øyvind søn. 1. sep. 2024 kl. 16:22 skrev Victor Lazzarini <000010b17ddd988e-dmarc-request@listserv.heanet.ie>: The code in question is: buf[indx] = in[nn]; fv1 = indx - fdel * esr; /* Make sure inside the buffer / / * See comment above--same fix applied here. heh 981101 / while (UNLIKELY(fv1 < FL(0.0))) fv1 += (MYFLT)maxd; while (UNLIKELY(fv1 >= (MYFLT)maxd)) fv1 -= (MYFLT)maxd; and fdel is the delay time input. There is no check to make sure it's non-negative, so there’s a wraparound. Not the right thing in my book, but I didn’t write it. As usual, we can’t change it. I don’t think it is documented. Maybe one for the manual issues. ======================== Prof. Victor Lazzarini Maynooth University Ireland > On 1 Sep 2024, at 14:17, Oeyvind Brandtsegg <obrandts@GMAIL.COM> wrote: > > Warning* > This email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe. > Hi, > > I stumbled upon this while marking student assignments. I wanted to double check the manual for the lfo opcode. So I also checked the example (example 500 Advanced example of the lfo opcode). > The delay time for vdelay will be modulated in strange ways, as kAmpDELAY1 goes negative: > > kAmpDELAY1 lfo, 100, 1.35, 1 kAmpDELAY1 = kAmpDELAY1 + 50 ; DELAY SIGNAL adel1 vdelay asig1, kAmpDELAY1, 500 > > not sure what to do about it but thought I'd let someone know ;-) > Øyvind > > Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2024-09-01 20:52
From	vlz
Subject	Re: [Csnd] [EXTERNAL] [Csnd] Manual example for lfo, question/error
	No, it's instantiate alright. Puts an instance of the program in memory. Prof. Victor Lazzarini Maynooth University Ireland On 1 Sep 2024, at 20:50, Partev Sarkissian <0000060b2ef1338e-dmarc-request@listserv.heanet.ie> wrote: While looking this up in the manual, came across a spelling error while in the "f" opcodes. faustaudio — Instantiates and runs a compiled Faust program. faustdsp — Instantiates a Faust program. I don't think it's instantaneous, so I'm guessing "initiates". Could be confusing, did a double-take myself, thought I'd give a heads up on that. -Partev On Sunday, September 1, 2024 at 08:38:11 PM GMT+1, Partev Sarkissian <0000060b2ef1338e-dmarc-request@listserv.heanet.ie> wrote: As I recall from books by Julius Smith, that there is a difference between fdelay and vdelay. -Partev On Sunday, September 1, 2024 at 07:53:07 PM GMT+1, Victor Lazzarini <000010b17ddd988e-dmarc-request@listserv.heanet.ie> wrote: That and perhaps saying for vdelay that delaytime is modulo max delay. Prof. Victor Lazzarini Maynooth University Ireland On 1 Sep 2024, at 19:15, Oeyvind Brandtsegg <obrandts@gmail.com> wrote: Thanks for the clarification re vdelay, but what I intended to say is that the advanced manual example for lfo should perhaps be changed, so it generates valid delay times(?) It says ; By Stefano Cucchi 2020 Maybe if Stefano is here, he would chime in. all best Øyvind søn. 1. sep. 2024 kl. 16:22 skrev Victor Lazzarini <000010b17ddd988e-dmarc-request@listserv.heanet.ie>: The code in question is: buf[indx] = in[nn]; fv1 = indx - fdel * esr; /* Make sure inside the buffer / / * See comment above--same fix applied here. heh 981101 / while (UNLIKELY(fv1 < FL(0.0))) fv1 += (MYFLT)maxd; while (UNLIKELY(fv1 >= (MYFLT)maxd)) fv1 -= (MYFLT)maxd; and fdel is the delay time input. There is no check to make sure it's non-negative, so there’s a wraparound. Not the right thing in my book, but I didn’t write it. As usual, we can’t change it. I don’t think it is documented. Maybe one for the manual issues. ======================== Prof. Victor Lazzarini Maynooth University Ireland > On 1 Sep 2024, at 14:17, Oeyvind Brandtsegg <obrandts@GMAIL.COM> wrote: > > Warning* > This email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe. > Hi, > > I stumbled upon this while marking student assignments. I wanted to double check the manual for the lfo opcode. So I also checked the example (example 500 Advanced example of the lfo opcode). > The delay time for vdelay will be modulated in strange ways, as kAmpDELAY1 goes negative: > > kAmpDELAY1 lfo, 100, 1.35, 1 kAmpDELAY1 = kAmpDELAY1 + 50 ; DELAY SIGNAL adel1 vdelay asig1, kAmpDELAY1, 500 > > not sure what to do about it but thought I'd let someone know ;-) > Øyvind > > Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2024-09-01 21:00
From	Partev Sarkissian <0000060b2ef1338e-dmarc-request@LISTSERV.HEANET.IE>
Subject	Re: [Csnd] [EXTERNAL] [Csnd] Manual example for lfo, question/error
	Oh, interesting. Not familiar with that term. Okay then. Hmmm,... Thanks. Hmmm,... -Partev On Sunday, September 1, 2024 at 08:52:33 PM GMT+1, vlz <viclazzarini@gmail.com> wrote: No, it's instantiate alright. Puts an instance of the program in memory. Prof. Victor Lazzarini Maynooth University Ireland On 1 Sep 2024, at 20:50, Partev Sarkissian <0000060b2ef1338e-dmarc-request@listserv.heanet.ie> wrote: While looking this up in the manual, came across a spelling error while in the "f" opcodes. faustaudio — Instantiates and runs a compiled Faust program. faustdsp — Instantiates a Faust program. I don't think it's instantaneous, so I'm guessing "initiates". Could be confusing, did a double-take myself, thought I'd give a heads up on that. -Partev On Sunday, September 1, 2024 at 08:38:11 PM GMT+1, Partev Sarkissian <0000060b2ef1338e-dmarc-request@listserv.heanet.ie> wrote: As I recall from books by Julius Smith, that there is a difference between fdelay and vdelay. -Partev On Sunday, September 1, 2024 at 07:53:07 PM GMT+1, Victor Lazzarini <000010b17ddd988e-dmarc-request@listserv.heanet.ie> wrote: That and perhaps saying for vdelay that delaytime is modulo max delay. Prof. Victor Lazzarini Maynooth University Ireland On 1 Sep 2024, at 19:15, Oeyvind Brandtsegg <obrandts@gmail.com> wrote: Thanks for the clarification re vdelay, but what I intended to say is that the advanced manual example for lfo should perhaps be changed, so it generates valid delay times(?) It says ; By Stefano Cucchi 2020 Maybe if Stefano is here, he would chime in. all best Øyvind søn. 1. sep. 2024 kl. 16:22 skrev Victor Lazzarini <000010b17ddd988e-dmarc-request@listserv.heanet.ie>: The code in question is: buf[indx] = in[nn]; fv1 = indx - fdel * esr; /* Make sure inside the buffer / / * See comment above--same fix applied here. heh 981101 / while (UNLIKELY(fv1 < FL(0.0))) fv1 += (MYFLT)maxd; while (UNLIKELY(fv1 >= (MYFLT)maxd)) fv1 -= (MYFLT)maxd; and fdel is the delay time input. There is no check to make sure it's non-negative, so there’s a wraparound. Not the right thing in my book, but I didn’t write it. As usual, we can’t change it. I don’t think it is documented. Maybe one for the manual issues. ======================== Prof. Victor Lazzarini Maynooth University Ireland > On 1 Sep 2024, at 14:17, Oeyvind Brandtsegg <obrandts@GMAIL.COM> wrote: > > Warning* > This email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe. > Hi, > > I stumbled upon this while marking student assignments. I wanted to double check the manual for the lfo opcode. So I also checked the example (example 500 Advanced example of the lfo opcode). > The delay time for vdelay will be modulated in strange ways, as kAmpDELAY1 goes negative: > > kAmpDELAY1 lfo, 100, 1.35, 1 kAmpDELAY1 = kAmpDELAY1 + 50 ; DELAY SIGNAL adel1 vdelay asig1, kAmpDELAY1, 500 > > not sure what to do about it but thought I'd let someone know ;-) > Øyvind > > Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2024-09-01 21:10
From	Victor Lazzarini <000010b17ddd988e-dmarc-request@LISTSERV.HEANET.IE>
Subject	Re: [Csnd] [EXTERNAL] [Csnd] Manual example for lfo, question/error
	It's a very common term in object-oriented programming. Prof. Victor Lazzarini Maynooth University Ireland On 1 Sep 2024, at 21:00, Partev Sarkissian <0000060b2ef1338e-dmarc-request@listserv.heanet.ie> wrote: Oh, interesting. Not familiar with that term. Okay then. Hmmm,... Thanks. Hmmm,... -Partev On Sunday, September 1, 2024 at 08:52:33 PM GMT+1, vlz <viclazzarini@gmail.com> wrote: No, it's instantiate alright. Puts an instance of the program in memory. Prof. Victor Lazzarini Maynooth University Ireland On 1 Sep 2024, at 20:50, Partev Sarkissian <0000060b2ef1338e-dmarc-request@listserv.heanet.ie> wrote: While looking this up in the manual, came across a spelling error while in the "f" opcodes. faustaudio — Instantiates and runs a compiled Faust program. faustdsp — Instantiates a Faust program. I don't think it's instantaneous, so I'm guessing "initiates". Could be confusing, did a double-take myself, thought I'd give a heads up on that. -Partev On Sunday, September 1, 2024 at 08:38:11 PM GMT+1, Partev Sarkissian <0000060b2ef1338e-dmarc-request@listserv.heanet.ie> wrote: As I recall from books by Julius Smith, that there is a difference between fdelay and vdelay. -Partev On Sunday, September 1, 2024 at 07:53:07 PM GMT+1, Victor Lazzarini <000010b17ddd988e-dmarc-request@listserv.heanet.ie> wrote: That and perhaps saying for vdelay that delaytime is modulo max delay. Prof. Victor Lazzarini Maynooth University Ireland On 1 Sep 2024, at 19:15, Oeyvind Brandtsegg <obrandts@gmail.com> wrote: Thanks for the clarification re vdelay, but what I intended to say is that the advanced manual example for lfo should perhaps be changed, so it generates valid delay times(?) It says ; By Stefano Cucchi 2020 Maybe if Stefano is here, he would chime in. all best Øyvind søn. 1. sep. 2024 kl. 16:22 skrev Victor Lazzarini <000010b17ddd988e-dmarc-request@listserv.heanet.ie>: The code in question is: buf[indx] = in[nn]; fv1 = indx - fdel * esr; /* Make sure inside the buffer / / * See comment above--same fix applied here. heh 981101 / while (UNLIKELY(fv1 < FL(0.0))) fv1 += (MYFLT)maxd; while (UNLIKELY(fv1 >= (MYFLT)maxd)) fv1 -= (MYFLT)maxd; and fdel is the delay time input. There is no check to make sure it's non-negative, so there’s a wraparound. Not the right thing in my book, but I didn’t write it. As usual, we can’t change it. I don’t think it is documented. Maybe one for the manual issues. ======================== Prof. Victor Lazzarini Maynooth University Ireland > On 1 Sep 2024, at 14:17, Oeyvind Brandtsegg <obrandts@GMAIL.COM> wrote: > > Warning* > This email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe. > Hi, > > I stumbled upon this while marking student assignments. I wanted to double check the manual for the lfo opcode. So I also checked the example (example 500 Advanced example of the lfo opcode). > The delay time for vdelay will be modulated in strange ways, as kAmpDELAY1 goes negative: > > kAmpDELAY1 lfo, 100, 1.35, 1 kAmpDELAY1 = kAmpDELAY1 + 50 ; DELAY SIGNAL adel1 vdelay asig1, kAmpDELAY1, 500 > > not sure what to do about it but thought I'd let someone know ;-) > Øyvind > > Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here

Date	2024-09-01 21:16
From	Partev Sarkissian <0000060b2ef1338e-dmarc-request@LISTSERV.HEANET.IE>
Subject	Re: [Csnd] [EXTERNAL] [Csnd] Manual example for lfo, question/error
	Aahh,... should've known. Don't do much of that. That explains it. Thanks. -Partev On Sunday, September 1, 2024 at 09:10:50 PM GMT+1, Victor Lazzarini <000010b17ddd988e-dmarc-request@listserv.heanet.ie> wrote: It's a very common term in object-oriented programming. Prof. Victor Lazzarini Maynooth University Ireland On 1 Sep 2024, at 21:00, Partev Sarkissian <0000060b2ef1338e-dmarc-request@listserv.heanet.ie> wrote: Oh, interesting. Not familiar with that term. Okay then. Hmmm,... Thanks. Hmmm,... -Partev On Sunday, September 1, 2024 at 08:52:33 PM GMT+1, vlz <viclazzarini@gmail.com> wrote: No, it's instantiate alright. Puts an instance of the program in memory. Prof. Victor Lazzarini Maynooth University Ireland On 1 Sep 2024, at 20:50, Partev Sarkissian <0000060b2ef1338e-dmarc-request@listserv.heanet.ie> wrote: While looking this up in the manual, came across a spelling error while in the "f" opcodes. faustaudio — Instantiates and runs a compiled Faust program. faustdsp — Instantiates a Faust program. I don't think it's instantaneous, so I'm guessing "initiates". Could be confusing, did a double-take myself, thought I'd give a heads up on that. -Partev On Sunday, September 1, 2024 at 08:38:11 PM GMT+1, Partev Sarkissian <0000060b2ef1338e-dmarc-request@listserv.heanet.ie> wrote: As I recall from books by Julius Smith, that there is a difference between fdelay and vdelay. -Partev On Sunday, September 1, 2024 at 07:53:07 PM GMT+1, Victor Lazzarini <000010b17ddd988e-dmarc-request@listserv.heanet.ie> wrote: That and perhaps saying for vdelay that delaytime is modulo max delay. Prof. Victor Lazzarini Maynooth University Ireland On 1 Sep 2024, at 19:15, Oeyvind Brandtsegg <obrandts@gmail.com> wrote: Thanks for the clarification re vdelay, but what I intended to say is that the advanced manual example for lfo should perhaps be changed, so it generates valid delay times(?) It says ; By Stefano Cucchi 2020 Maybe if Stefano is here, he would chime in. all best Øyvind søn. 1. sep. 2024 kl. 16:22 skrev Victor Lazzarini <000010b17ddd988e-dmarc-request@listserv.heanet.ie>: The code in question is: buf[indx] = in[nn]; fv1 = indx - fdel * esr; /* Make sure inside the buffer / / * See comment above--same fix applied here. heh 981101 / while (UNLIKELY(fv1 < FL(0.0))) fv1 += (MYFLT)maxd; while (UNLIKELY(fv1 >= (MYFLT)maxd)) fv1 -= (MYFLT)maxd; and fdel is the delay time input. There is no check to make sure it's non-negative, so there’s a wraparound. Not the right thing in my book, but I didn’t write it. As usual, we can’t change it. I don’t think it is documented. Maybe one for the manual issues. ======================== Prof. Victor Lazzarini Maynooth University Ireland > On 1 Sep 2024, at 14:17, Oeyvind Brandtsegg <obrandts@GMAIL.COM> wrote: > > Warning* > This email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe. > Hi, > > I stumbled upon this while marking student assignments. I wanted to double check the manual for the lfo opcode. So I also checked the example (example 500 Advanced example of the lfo opcode). > The delay time for vdelay will be modulated in strange ways, as kAmpDELAY1 goes negative: > > kAmpDELAY1 lfo, 100, 1.35, 1 kAmpDELAY1 = kAmpDELAY1 + 50 ; DELAY SIGNAL adel1 vdelay asig1, kAmpDELAY1, 500 > > not sure what to do about it but thought I'd let someone know ;-) > Øyvind > > Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here