Re: [PD] PD] request assistance with crackles and pops in VFOs driven, by modulating accelerometer signals
PD version: Pd-0.42.5-extended-20100501 Mac OS X: 10.5.8, 4GM, 2.5GHz Intel Core 2 Duo Hi PD List, I'm replying to my own thread, started a couple of years ago, concerning crackles and pops in VFOs driven by modulating accelerometer signals (such as from a Wiimote). I've been creating some new 3D GEM visuals (and making videos from them), however the quality is compromised by pops, crackles, and glitches in the audio. One can hear the sound problems (and see the nice videos) at: Gallery: 3D Drancel RGB visuals and sound synthesis with a PureData/GEM Prototype of DranceWare http://www.webel.com.au/node/2592 Some videos that demonstrate the sound hiccups include: Video: The Drancel RGB virtual triaxial accelerometer: colour=sound synthesis principle in 3D (with 3 VFOs and simulated sinusoidal signals) http://www.webel.com.au/node/2617 Video: Drancel RGB accelerometer "light horns" sound=colour synthesis principle (with 3 Variable Frequency Oscillators): driven by Wiimote http://www.webel.com.au/node/2616 Video: 1 Drancer (acceleration avatar) with 5 Drancel RGB virtual triaxial accelerometers: colour=sound synthesis principle in 3D (PureData/GEM) 3 VFOs per Drancel and simulated sinusoidal signals http://www.webel.com.au/node/2618 Video: 2 Drancers (acceleration avatars) each with 5 Drancels: in PureData/GEM Prototype of DranceWare: rotating camera: driven by Wiimote http://www.webel.com.au/node/2614 I can conclude so far: - It happens whether or not I show the 3D GEM visuals (I can remove the [gemhead] and it makes no difference to the sound). - It happens even for the simplest of my systems with only 3VFOs (and does not seem to get proportionally worse with number of elements). - It happens whether or not I use smooth simulated (sinuisoidal) or real accelerometer signals driving VFOs (I can safely exclude the accelerometer sensor signal quality). - It also happens even when I do not monitor signals in widgets (I've come up with a nice little checkbox/spigot-based bypass system for number and slider widgets, because they can definitely eat a lot of CPU, and they can cause disturbances). - It happens even when I am not changing parameters in the graphical interface. It "just happens" sometimes. - It happens no matter what time-smoothing scale I use to smooth changes in the driving frequency of the VFOs. - I don't think it is a CPU problem, it happens even when the CPU usage is modest. And, by comparison, it definitely does not happen on an older Java/JSyn version of my system, with very similar parameters and synthesis, so I don't think the algorithm is to blame. I am clueless as to why I am still getting these pops and crackles in PureData+GEM on Mac OS X. I would be most grateful for suggestions of any other tests I might perform to isolate the problem. Q: Is there a standard patch I can use to test/benchmark performance of PureData on my maschine ? Yours Gesturally Accelerated, Dr Darren Kelly (Webel IT Australia) Darren Kelly wrote: Hi PD list, I have uploaded an example of the problem as about 20 rather unmusical seconds of me waving 1 Wiimote as accelerometer driving frequencies of 3 [osc~], almost nothing else running, and no visuals, sliders, atoms: http://www.webel.com.au/project/drancing/puredata/audio/drancing.VFO.3osc.crackles.mp3 It is panned quite left (when I use 2 Wiimotes I pan them leftish and rightish). Will keep breaking it down further to isolate the problem. The patches including visuals (now disconnected) can be viewed at: http://www.webel.com.au/project/drancing/puredata/index.jsp?page=DranceWarePureDataWii Darren Collin Oldham wrote: I think you are getting those crackles from the atoms (number boxes) that are trying to redraw every time they get a new number from the accelerometers. (which is probably pretty often!) That would explain why it only happens you are using the sensors, and why your very sensible solutions didn't work. Just a hunch! I'd try hiding it all in a sub patch, and if that works, you could use something like [speedlim] (from cyclone?) to limit the refresh rate on the atoms. Collin http://homepage.mac.com/coldham/klang -- Webel IT, "The Elements of the Web" Specialists in Drupal CMS web engineering, UML, SysML, Java and XML, Darren Kelly, BSc, PhD phone: +61 (2) 9386 0090 mobile: 0405 029 008 post: PO Box 1816, Bondi Junction, NSW 1355, Australia http://www.webel.com.au ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] PD] request assistance with crackles and pops in VFOs driven, by modulating accelerometer signals
I haven't had a look at the patches, but did you separate audio and gem in any way? there are different strategies on how to do that, explained here: http://web.uni-weimar.de/medien/wiki/Audiovideo m. Am 03.07.2010 um 11:43 schrieb Darren Kelly: PD version: Pd-0.42.5-extended-20100501 Mac OS X: 10.5.8, 4GM, 2.5GHz Intel Core 2 Duo Hi PD List, I'm replying to my own thread, started a couple of years ago, concerning crackles and pops in VFOs driven by modulating accelerometer signals (such as from a Wiimote). I've been creating some new 3D GEM visuals (and making videos from them), however the quality is compromised by pops, crackles, and glitches in the audio. One can hear the sound problems (and see the nice videos) at: Gallery: 3D Drancel RGB visuals and sound synthesis with a PureData/GEM Prototype of DranceWare http://www.webel.com.au/node/2592 Some videos that demonstrate the sound hiccups include: Video: The Drancel RGB virtual triaxial accelerometer: colour=sound synthesis principle in 3D (with 3 VFOs and simulated sinusoidal signals) http://www.webel.com.au/node/2617 Video: Drancel RGB accelerometer light horns sound=colour synthesis principle (with 3 Variable Frequency Oscillators): driven by Wiimote http://www.webel.com.au/node/2616 Video: 1 Drancer (acceleration avatar) with 5 Drancel RGB virtual triaxial accelerometers: colour=sound synthesis principle in 3D (PureData/GEM) 3 VFOs per Drancel and simulated sinusoidal signals http://www.webel.com.au/node/2618 Video: 2 Drancers (acceleration avatars) each with 5 Drancels: in PureData/GEM Prototype of DranceWare: rotating camera: driven by Wiimote http://www.webel.com.au/node/2614 I can conclude so far: - It happens whether or not I show the 3D GEM visuals (I can remove the [gemhead] and it makes no difference to the sound). - It happens even for the simplest of my systems with only 3VFOs (and does not seem to get proportionally worse with number of elements). - It happens whether or not I use smooth simulated (sinuisoidal) or real accelerometer signals driving VFOs (I can safely exclude the accelerometer sensor signal quality). - It also happens even when I do not monitor signals in widgets (I've come up with a nice little checkbox/spigot-based bypass system for number and slider widgets, because they can definitely eat a lot of CPU, and they can cause disturbances). - It happens even when I am not changing parameters in the graphical interface. It just happens sometimes. - It happens no matter what time-smoothing scale I use to smooth changes in the driving frequency of the VFOs. - I don't think it is a CPU problem, it happens even when the CPU usage is modest. And, by comparison, it definitely does not happen on an older Java/JSyn version of my system, with very similar parameters and synthesis, so I don't think the algorithm is to blame. I am clueless as to why I am still getting these pops and crackles in PureData+GEM on Mac OS X. I would be most grateful for suggestions of any other tests I might perform to isolate the problem. Q: Is there a standard patch I can use to test/benchmark performance of PureData on my maschine ? Yours Gesturally Accelerated, Dr Darren Kelly (Webel IT Australia) Darren Kelly wrote: Hi PD list, I have uploaded an example of the problem as about 20 rather unmusical seconds of me waving 1 Wiimote as accelerometer driving frequencies of 3 [osc~], almost nothing else running, and no visuals, sliders, atoms: http://www.webel.com.au/project/drancing/puredata/audio/drancing.VFO.3osc.crackles.mp3 It is panned quite left (when I use 2 Wiimotes I pan them leftish and rightish). Will keep breaking it down further to isolate the problem. The patches including visuals (now disconnected) can be viewed at: http://www.webel.com.au/project/drancing/puredata/index.jsp?page=DranceWarePureDataWii Darren Collin Oldham wrote: I think you are getting those crackles from the atoms (number boxes) that are trying to redraw every time they get a new number from the accelerometers. (which is probably pretty often!) That would explain why it only happens you are using the sensors, and why your very sensible solutions didn't work. Just a hunch! I'd try hiding it all in a sub patch, and if that works, you could use something like [speedlim] (from cyclone?) to limit the refresh rate on the atoms. Collin http://homepage.mac.com/coldham/klang -- Webel IT, The Elements of the Web Specialists in Drupal CMS web engineering, UML, SysML, Java and XML, Darren Kelly, BSc, PhD phone: +61 (2) 9386 0090 mobile: 0405 029 008 post: PO Box 1816, Bondi Junction, NSW 1355, Australia http://www.webel.com.au ___ Pd-list@iem.at mailing list UNSUBSCRIBE and
Re: [PD] PD] request assistance with crackles and pops in VFOs driven, by modulating accelerometer signals
On Sat, 3 Jul 2010, Darren Kelly wrote: I'm replying to my own thread, started a couple of years ago, concerning crackles and pops in VFOs driven by modulating accelerometer signals (such as from a Wiimote). Does the amount of problem change according to the amount of audio delay as chosen in the soundcard configuration dialogue ? _ _ __ ___ _ _ _ ... | Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] request assistance with crackles and pops in VFOs driven by modulating accelerometer signals
Thanks Marius, Volume/amplitude in the case at hand is set globally and fixed across all 6 [osc~], so not a suspect. Am stripping back my system to remove all GUI and all downstream processing to isolate the cause BTW I also have a 3D amplitude modulation mode, and I do use line smoothing with effect there. You've also preempted some future questions about phase modulation, Darren marius schebella wrote: Frank Barknecht wrote: Hallo, hard off hat gesagt: // hard off wrote: i think it is pretty safe to say that the speed of the oscillator isn't what is is causing these clicks. Jumps (discontinuities) in a signal are the most nasty cause for clicks, while corners are generally harmless, if they aren't too sharp. Changing the frequency of an oscillator never generates a jump, so it's pretty safe. but, if you start to control the *volume* directly from a sensor you can get into trouble if your signal drops to 0 for some milliseconds. also, if your volume becomes very high, you can get distortion and crackles. if you do phase modulation you can also get crackles, if you have high jumps in your control signal. I think it is good practice to use line~ for such things. marius. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- Darren Kelly, BSc, PhD phone: +61 (2) 9386 0090 post: PO Box 1816, Bondi Junction, NSW 1355, Australia http://www.webel.com.au ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] request assistance with crackles and pops in VFOs, driven by modulating accelerometer signals
Hi,
Yes, I am careful that the total signal pre dac is within range and even
monitor clipping.
I also have a global scaling parameter for the gain across all 6 VFO
[osc~] oscllators.
Darren
Andy Farnell wrote:
On Thu, 24 Jul 2008 22:41:34 +1000
Darren Kelly [EMAIL PROTECTED] wrote:
There isn't just 1 [osc~] object in the whole system, there are (at
least) 6, 3 for each of 2 triaxial accelerometers.
Did you remember to rescale the output {*~ 0.166] ?
It might just be clipping at the DAC when all the oscillators
are in phase.
--
Darren Kelly, BSc, PhD
phone: +61 (2) 9386 0090
post: PO Box 1816, Bondi Junction, NSW 1355, Australia
http://www.webel.com.au
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Re: [PD] PD] request assistance with crackles and pops in VFOs driven, by modulating accelerometer signals
I think you are getting those crackles from the atoms (number boxes) that are trying to redraw every time they get a new number from the accelerometers. (which is probably pretty often!) That would explain why it only happens you are using the sensors, and why your very sensible solutions didn't work. Just a hunch! I'd try hiding it all in a sub patch, and if that works, you could use something like [speedlim] (from cyclone?) to limit the refresh rate on the atoms. Collin http://homepage.mac.com/coldham/klang ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] request assistance with crackles and pops in VFOs driven by modulating accelerometer signals
On Thu, 24 Jul 2008 13:22:47 +0900 hard off [EMAIL PROTECTED] wrote: by the way, is it even possible to get clicks when rapidly changing osc~ speeds? i didn't think it was, and i have never experienced that. Think of the modulating signal as a triangle wave altering the frequency of [osc~]. As the change becomes fast and large, when the slope is big, then it's become FM giving us a bunch of sidebands. If a large change happens briefly a spike of new harmonics will be heard as a click. What might be in Darrens data stream? 100, 101.2, 99.98, 101.7, 102.21, 0, 102.96, 103.2 A spurious zero like that would cause a problem. So, it's a good idea to look at the data closely to see what's going on. -- Use the source -- Use the source ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] request assistance with crackles and pops in VFOs, driven by modulating accelerometer signals
On Thu, 24 Jul 2008 22:41:34 +1000
Darren Kelly [EMAIL PROTECTED] wrote:
There isn't just 1 [osc~] object in the whole system, there are (at
least) 6, 3 for each of 2 triaxial accelerometers.
Did you remember to rescale the output {*~ 0.166] ?
It might just be clipping at the DAC when all the oscillators
are in phase.
--
Use the source
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Re: [PD] request assistance with crackles and pops in VFOs, driven by modulating accelerometer signals
On Thu, 24 Jul 2008 22:41:34 +1000 Darren Kelly [EMAIL PROTECTED] wrote: There isn't just 1 [osc~] object in the whole system, there are (at least) 6, 3 for each of 2 triaxial accelerometers. Did you remember to rescale the output [*~ 0.166] ? It might just be clipping at the DAC when all the oscillators are in phase. -- Use the source ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] request assistance with crackles and pops in VFOs driven by modulating accelerometer signals
Andy Farnell wrote: On Thu, 24 Jul 2008 13:22:47 +0900 hard off [EMAIL PROTECTED] wrote: by the way, is it even possible to get clicks when rapidly changing osc~ speeds? i didn't think it was, and i have never experienced that. Think of the modulating signal as a triangle wave altering the frequency of [osc~]. As the change becomes fast and large, when the slope is big, then it's become FM giving us a bunch of sidebands. If a large change happens briefly a spike of new harmonics will be heard as a click. What might be in Darrens data stream? 100, 101.2, 99.98, 101.7, 102.21, 0, 102.96, 103.2 A spurious zero like that would cause a problem. So, it's a good idea to look at the data closely to see what's going on. I think it should be fairly easy to sort out sensor data of the stream that are most likely erroneous (like big jumps). isn't there already an object like [trust] or [believe]? marius. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] request assistance with crackles and pops in VFOs driven by modulating accelerometer signals
a jump down to 0 wouldn't cause any problems though, the oscillator's waveform would just flatline for a moment. and in the tests i just did, only very significant jumps, like from 100hz to 2hz caused major clickiness. i think it is pretty safe to say that the speed of the oscillator isn't what is is causing these clicks. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] request assistance with crackles and pops in VFOs, driven by modulating accelerometer signals
hard off wrote: if you attach a [dac~] directly to the osc~ object, do you still get crackles? There isn't just 1 [osc~] object in the whole system, there are (at least) 6, 3 for each of 2 triaxial accelerometers. If I try an [osc~] into a [dac~] independently there is no problem (driven by hand). I'll try again just driving the frequency of 1 [osc~] with 1 dimension of 1 accelerometer (happens to be a Wiimote via OSC). if not, then i guess your problem might lie further down the line. looking at your PAN module, the panning amount is sent as a float into [*~ ] objects without [line~] smoothing. that would be the likeliest culprit i reckon. A good idea to improve that anyway, and I did, however there is no obvious audio improvement. hard off also wrote: by the way, is it even possible to get clicks when rapidly changing osc~ speeds? i didn't think it was, and i have never experienced that. Precisely why I am bamboozled, it may well have another cause in my wider synthesis system. (I have used a quite similar accelerometer audio synthesis system for years in JSyn without this trouble). Thanks for taking the trouble to consider my situation and challenge my assumptions, appreciated, I'll keep looking/listening, and try breaking things back down to a very simple test suite first, Darren -- Darren Kelly, BSc, PhD phone: +61 (2) 9386 0090 post: PO Box 1816, Bondi Junction, NSW 1355, Australia http://www.webel.com.au ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] request assistance with crackles and pops in VFOs driven by modulating accelerometer signals
Hallo, hard off hat gesagt: // hard off wrote: i think it is pretty safe to say that the speed of the oscillator isn't what is is causing these clicks. Jumps (discontinuities) in a signal are the most nasty cause for clicks, while corners are generally harmless, if they aren't too sharp. Changing the frequency of an oscillator never generates a jump, so it's pretty safe. Ciao -- Frank Barknecht _ __footils.org__ ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] PD] request assistance with crackles and pops in VFOs driven, by modulating accelerometer signals
Hi PD list, I have uploaded an example of the problem as about 20 rather unmusical seconds of me waving 1 Wiimote as accelerometer driving frequencies of 3 [osc~], almost nothing else running, and no visuals, sliders, atoms: http://www.webel.com.au/project/drancing/puredata/audio/drancing.VFO.3osc.crackles.mp3 It is panned quite left (when I use 2 Wiimotes I pan them leftish and rightish). Will keep breaking it down further to isolate the problem. The patches including visuals (now disconnected) can be viewed at: http://www.webel.com.au/project/drancing/puredata/index.jsp?page=DranceWarePureDataWii Darren Collin Oldham wrote: I think you are getting those crackles from the atoms (number boxes) that are trying to redraw every time they get a new number from the accelerometers. (which is probably pretty often!) That would explain why it only happens you are using the sensors, and why your very sensible solutions didn't work. Just a hunch! I'd try hiding it all in a sub patch, and if that works, you could use something like [speedlim] (from cyclone?) to limit the refresh rate on the atoms. Collin http://homepage.mac.com/coldham/klang -- Darren Kelly, BSc, PhD phone: +61 (2) 9386 0090 post: PO Box 1816, Bondi Junction, NSW 1355, Australia http://www.webel.com.au ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] request assistance with crackles and pops in VFOs driven by modulating accelerometer signals
Frank Barknecht wrote: Hallo, hard off hat gesagt: // hard off wrote: i think it is pretty safe to say that the speed of the oscillator isn't what is is causing these clicks. Jumps (discontinuities) in a signal are the most nasty cause for clicks, while corners are generally harmless, if they aren't too sharp. Changing the frequency of an oscillator never generates a jump, so it's pretty safe. but, if you start to control the *volume* directly from a sensor you can get into trouble if your signal drops to 0 for some milliseconds. also, if your volume becomes very high, you can get distortion and crackles. if you do phase modulation you can also get crackles, if you have high jumps in your control signal. I think it is good practice to use line~ for such things. marius. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] request assistance with crackles and pops in VFOs driven by modulating accelerometer signals
Hi PD, I am getting crackles when driving the frequency of an osc~ with an accelerometer signal (in fact I'm driving 3 x 2 = 6 oscillators with Wiimotes as wireless 2 triaxial accelerometers) , which one can hear in the following mp4 movie (at the end when I am waving the sensors faster): http://www.webel.com.au/project/drancing/wii/movie/iSight.320x240/Drancing_PD_Wii_iSight.VFO.1.320x240.mp4 The Pure Data patch for one channel can be seen here: http://www.webel.com.au/project/drancing/puredata/VFO.pd.png And the whole system's patches can be seen here: http://www.webel.com.au/project/drancing/puredata/index.jsp?page=DranceWarePureDataWii Each conditioned accelerometer channel can drive a Variable Frequency Oscillator (VFO) (osc~) with the option of locking onto discrete MIDI note frequencies, as well as a frequency scaling, a frequency offset, and an output gain. I have tried inserting a sig~ before the osc~, it made no audible difference. I have tried including a line and line~ to smooth the signal before varying the frequency, it made no audible difference. I now have a limiter~ in COMPRESS mode at the output, did not help (it certainly helped with many other things, just not with my VFO problem). The amplitude definitely remains constant during this. When I open up the osc~ examples and pump the frequency very quickly with just a mouse over the feeding number as simulated driver I don't get any problems at all. Note however that I am driving 6 oscillators (and a lot more stuff) when running my full system, however I'm not topping out my CPU, so I don't think that's the problem either. Am bamboozled, since I don't recall having this trouble using the same naive strategy with an equivalent JSyn audio synthesis system. Very glad for any suggestions and help, Darren -- Darren Kelly, BSc, PhD phone: +61 (2) 9386 0090 post: PO Box 1816, Bondi Junction, NSW 1355, Australia http://www.webel.com.au ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] request assistance with crackles and pops in VFOs driven by modulating accelerometer signals
The combination of problems and tests does seem strange. In a case like this a good debug approach may be to log everything from the controller to a file and look through it for strange jumps. A [lop~ 10] following the [sig~] might help smooth the data better than a [line~] On Thu, 24 Jul 2008 00:17:32 +1000 Darren Kelly [EMAIL PROTECTED] wrote: Hi PD, I am getting crackles when driving the frequency of an osc~ with an accelerometer signal (in fact I'm driving 3 x 2 = 6 oscillators with Wiimotes as wireless 2 triaxial accelerometers) , which one can hear in the following mp4 movie (at the end when I am waving the sensors faster): http://www.webel.com.au/project/drancing/wii/movie/iSight.320x240/Drancing_PD_Wii_iSight.VFO.1.320x240.mp4 The Pure Data patch for one channel can be seen here: http://www.webel.com.au/project/drancing/puredata/VFO.pd.png And the whole system's patches can be seen here: http://www.webel.com.au/project/drancing/puredata/index.jsp?page=DranceWarePureDataWii Each conditioned accelerometer channel can drive a Variable Frequency Oscillator (VFO) (osc~) with the option of locking onto discrete MIDI note frequencies, as well as a frequency scaling, a frequency offset, and an output gain. I have tried inserting a sig~ before the osc~, it made no audible difference. I have tried including a line and line~ to smooth the signal before varying the frequency, it made no audible difference. I now have a limiter~ in COMPRESS mode at the output, did not help (it certainly helped with many other things, just not with my VFO problem). The amplitude definitely remains constant during this. When I open up the osc~ examples and pump the frequency very quickly with just a mouse over the feeding number as simulated driver I don't get any problems at all. Note however that I am driving 6 oscillators (and a lot more stuff) when running my full system, however I'm not topping out my CPU, so I don't think that's the problem either. Am bamboozled, since I don't recall having this trouble using the same naive strategy with an equivalent JSyn audio synthesis system. Very glad for any suggestions and help, Darren -- Darren Kelly, BSc, PhD phone: +61 (2) 9386 0090 post: PO Box 1816, Bondi Junction, NSW 1355, Australia http://www.webel.com.au ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list -- Use the source ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] request assistance with crackles and pops in VFOs driven by modulating accelerometer signals
by the way, is it even possible to get clicks when rapidly changing osc~ speeds? i didn't think it was, and i have never experienced that. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] request assistance with crackles and pops in VFOs driven by modulating accelerometer signals
if you attach a [dac~] directly to the osc~ object, do you still get crackles? if not, then i guess your problem might lie further down the line. looking at your PAN module, the panning amount is sent as a float into [*~ ] objects without [line~] smoothing. that would be the likeliest culprit i reckon. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
