Re: New D book available for pre-order: D Web Development
On Wednesday, 25 November 2015 at 04:35:47 UTC, Nick_B wrote: On Wednesday, 29 July 2015 at 21:17:59 UTC, John wrote: On Wednesday, 22 July 2015 at 15:29:20 UTC, Kai Nacke wrote: my book D Web Development, available now for pre-order: https://www.packtpub.com/web-development/d-web-development Will this book be available in hardcopy ? Do you have a planned date for publication ? Hi Nick! Yes, the book will be available in hardcopy. Proposed publication date is January 2016. Regards, Kai
Re: Graillon 1.0, VST effect fully made with D
On Sunday, 29 November 2015 at 16:15:32 UTC, Guillaume Piolat wrote: There is also a sample-wise FFT I've came across, which is expensive but avoids chunking. Hm, I don't know what that is :). Looking for similar grains is the idea behind the popular auto-correlation pitch detection methods. Require two periods else no autocorrelation peak though. The rumor says that the non-realtime Autotune works with that, along with many modern pitch detection methods. I thought they used Laroche and Dolson's FFT based one combined with a peak detector, but maybe that was the real time version. There are other full spectral resynthesis methods that throw away phase information and represent each spectral components as a bandpass filter of noise. That is rather expressive since you can do morphing with it. (Like you can do with images). But since you throw away phase information I guess some attacks suffer, so you have to special case the attacks as "residue" samples that are left in the time domain (the difference between what you can represent as spectral components and the left over bits). I don't know what "voicedness" is? You mean things like vibrato? vibrato is the pitch variation that occur when the larynx is well relaxed. Yes, so that will generate sidebands in the frequency spectrum, like FM synthesis, right? So in order to pick up fast vibrato I would assume you would also need to do analysis of the spectrum, or? voicedness is the difference between sss(unvoiced) and zz (voiced). A phonem is voiced when there is periodic glottal closure and openings. Ah! In the 90s I read a paper in Computer Music journal where they did song synthesis by emulating the vocal tract as a "physical" filter-model. I'm not sure if they used FoF for generating the sound. I think there was a vinyl flexi disc with it too. :-) I have it somewhere... You might find it interesting. When the sound isn't voiced, there is no period. There isn't a "pitch" there. So pitch detection tend to come with a confidence measure. So it is a problem for real time, but in non-real time you can work your way backwards and fill in the missing parts before doing resynthesis? I guess? The devil in that is that voicedness itself is half a lie, or let say a leaky abstraction, it breaks down for distorted vocals. Right. You have a lot of these problems in sound analysis. Like sound separation. The brain is so impressive. I still have problem understanding how we can hear 3D with two ears. Like distinguishing above and below. I understand the basics of it, but it is still impressive when you try to figure out _how_. I guess that's why IRCAM can sell licenses to superVP. :) Their paper on that topic are interesting, they group spectral peaks by formants and move them together. I've read the Laroche and Dowson paper in detail, and more or less know it by heart now, but maybe you are thinking about some other paper? Their paper was good on the science part, but they leave the artistic engineering part open to the reader... ;-) More insight on the artistic engineering part is most welcome!!
Re: Graillon 1.0, VST effect fully made with D
On Sunday, 29 November 2015 at 17:23:20 UTC, Ola Fosheim Grøstad wrote: Yes, so that will generate sidebands in the frequency spectrum, like FM synthesis, right? It won't because the vibrato frequency is too low, around 10hz. So in order to pick up fast vibrato I would assume you would also need to do analysis of the spectrum, or? Or just be fast to react, else this vibrato amplitude would be smoothed out. So it is a problem for real time, but in non-real time you can work your way backwards and fill in the missing parts before doing resynthesis? I guess? In non-realtime, everything is possible, you can have a bigger analysis window and much less problems. For example, some use dynamic programming for pitch detection. I've read the Laroche and Dowson paper in detail, and more or less know it by heart now, but maybe you are thinking about some other paper? Their paper was good on the science part, but they leave the artistic engineering part open to the reader... ;-) More insight on the artistic engineering part is most welcome!! Whatever the method, it's important to spend a lot of time in tuning.
Re: New D book available for pre-order: D Web Development
That's a great offer but unfortunately a bit late. I am currently reworking the last chapter. Publication date is near... Regards, Kai On Wednesday, 25 November 2015 at 06:58:00 UTC, Rory McGuire wrote: Any chance I could be added to the reviewers for this book? English is my primary language and I use vibe.d about 25 work hours a week. On Wed, Jul 22, 2015 at 5:29 PM, Kai Nacke via Digitalmars-d-announce < digitalmars-d-announce@puremagic.com> wrote: Hi all! Did you notice that development of LDC has been a bit slowly in the past? The reason is my book D Web Development, available now for pre-order: https://www.packtpub.com/web-development/d-web-development The story behind the book: Some time after the review of the "D Cookbook" I was asked by Packt Publishing if I would be interested in writing a book about web development with D. By that time I used vibe.d only as a test case for LDC :-) But then I took a closer look at the features of vibe.d and got enthusiastic about it. I agreed to write the book. Hopefully the book shows much fun it is to use D for web applications. For me writing a book is an incredible experience. It's challenging because I am not a native English speaker. But I am having lot of fun in exploring all the details, creating examples and writing about it. I learned a lot in this process, including some more D programming. :-) A big thank to all (known and unknown) reviewers, to Andrei for contributing the foreword and all others who helped in one way or the other. Having finished about 60% of the chapters, the other 40% and the rework due to comments still absorb most of my time. Please be patient if fixing LDC bugs takes some more time as usual. Regards, Kai
Re: Graillon 1.0, VST effect fully made with D
On Sunday, 29 November 2015 at 17:36:47 UTC, Guillaume Piolat wrote: On Sunday, 29 November 2015 at 17:23:20 UTC, Ola Fosheim Grøstad wrote: Yes, so that will generate sidebands in the frequency spectrum, like FM synthesis, right? It won't because the vibrato frequency is too low, around 10hz. Right, so it will only be a serious problem if one went beyond 2048 samples FFT, which isn't really necessary. This is an interesting swedish paper on vibrato btw: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.436.4888=rep1=pdf
Re: Graillon 1.0, VST effect fully made with D
On Sunday, 29 November 2015 at 13:21:53 UTC, Ola Fosheim Grøstad wrote: I remember the electro acoustic people here in Oslo (NoTAM) doing live pitchtracking 20 years ago, I believe they used an envelope follower of some sort. Just measuring the distance between the tops? That was to have the "electronic accompaniment" follow the lead of the vocalist I believe. The hard thing about live pitch-tracking is getting the minimal latency keeping reliability. It's not that simple. You also want "voicedness", which is more challenging than pitch. But it has different latency characteristics, overlapped FFT easily goes into the 20/30 ms. It depends on how low down in frequency you need to go, a female voice is at 160 hz and up, and a child is at 250hz and up. In that frequency range one could do better. And at the cost of complexity you could use two FFTs, one for the lower range and another for the higher range. Thought about it but a singer could usually cover a range of 3 octaves, even if very few song mandate it: https://www.youtube.com/watch?v=cveoHrMyUDs=41s. A man voice could go as low as say 40hz. Only if you would need only one period to guess the pitch (unlikely), that's already 25ms latency guaranteed, and that's before you introduce FFT overlap! (if you want eg. to track harmonics, get formants through linear prediction, etc). I've not tried the multiple FFT, I was worried pitch would lag oddly when changing FFT size. Perhaps it could work. Or maybe one can use wavelets, but I don't know much about wavelet transforms (they don't map to cosine, so imagine it will be much harder to do well). I have trouble to imagine the reconstruction so don't use them (well, I did once, but didn't _get_ it).
Re: Graillon 1.0, VST effect fully made with D
On Sunday, 29 November 2015 at 06:18:13 UTC, Jonny wrote: While, this doesn't prove you don't have a clue about jitter, my guess is, you don't. Yes, jitter is bad and worse than latency, but OS-X AudioUnits run at a high priority thread where you cannot do system calls, malloc or run a GC. So the GC statements are misleading. It is unfortunately common in these forums to overstate what D features are good for. It's just the usual fanboism superiority complex, it is an annoying aspect of the D culture, I agree. Just don't let it get to you, it is present in just about every thread. :-)
Re: Beta D 2.069.2-b1
On 2015-11-28 18:16, Martin Nowak wrote: First beta for the 2.069.2 point release. http://dlang.org/download.html#dmd_beta http://dlang.org/changelog/2.069.2.html Seems to build all my projects :) -- /Jacob Carlborg
Re: Graillon 1.0, VST effect fully made with D
On Sunday, 29 November 2015 at 09:12:42 UTC, deadalnix wrote: I see that if that RT music thing doesn't pan out for you, you can always become a psychiatrist. You are a man a many talents, congrats. Maybe you and Guillaume Piolat should try to tone down your french rhetorics? I don't think Ponce's product benefits from this (or from announcing that he is using a GC.).
Re: Graillon 1.0, VST effect fully made with D
On Sunday, 29 November 2015 at 06:18:13 UTC, Jonny wrote: um, come on, you sit here and preach that I don't know what I'm talking about yet you can't even be right on the first sentence? jitter is the standard deviation of the timings. Do you know what standard deviation is? It is the square root of the sum of the squares... Jitter is any deviation in, or displacement of, the signal pulses in a high-frequency digital signal. The deviation can be in terms of amplitude, phase timing or the width of the signal pulse. The units of jitter measurement are picoseconds peak-to-peak (ps p-p), rms, and percent of the unit interval (UI). See google.
Re: Graillon 1.0, VST effect fully made with D
On Sunday, 29 November 2015 at 05:59:19 UTC, Jonny wrote: I feel sorry for you. You are filled with hatred. I'm sorry if your life sucks, but no reason to blame me, put the blame squarely where it goes... on yourself. If you actually did any RT music for a living, it would be a big issue, instead, you cowardly make your pathetic remarks behind a keyboard and have no clue about the real issues involved. I hope you get things figured out before you die, else you've wasted your life ;/ I see that if that RT music thing doesn't pan out for you, you can always become a psychiatrist. You are a man a many talents, congrats.
Re: Graillon 1.0, VST effect fully made with D
On Sunday, 29 November 2015 at 09:12:18 UTC, Any wrote: On Sunday, 29 November 2015 at 06:18:13 UTC, Jonny wrote: um, come on, you sit here and preach that I don't know what I'm talking about yet you can't even be right on the first sentence? jitter is the standard deviation of the timings. Do you know what standard deviation is? It is the square root of the sum of the squares... Jitter is any deviation in, or displacement of, the signal pulses in a high-frequency digital signal. The deviation can be in terms of amplitude, phase timing or the width of the signal pulse. The units of jitter measurement are picoseconds peak-to-peak (ps p-p), rms, and percent of the unit interval (UI). See google. We're talking about whether a plugin / audio code / runtime environment can deliver audio to a soundcard in a reliable manner so that you don't get audio drop outs. We're not talking about the jitter of a digital clock source that's used to control the actual sampling stream. It's similar but at the level of the audio buffer timeslice, not the unit delta of the sample stream. The jitter of an audio clock source is for electronic engineers not audio plugin developers. In general terms of delivering audio to a soundcard jitter would be the variation in the time take to deliver each buffers worth of audio data to the soundcard. If the sound card has 5ms latency, then you need to make sure your audio processing never takes more than that. The point is that it is better to have an algorithm that always takes 3ms, than one that usually takes 2ms but occasionally takes 6ms. Because those times when it takes 6ms it cant feed the soundcard in time for the next audio buffer to be delivered. In more precise terms jitter is the variation in the time a given algorithm takes to process. I mean if the code is identical and doesn't change from one buffer to the next, the variation in time take to produce a each buffers worth of data. It's important to remember that a typical DAW user may have 10, 20, or 100+ plugins loaded, and it may be hitting 80 or 90 percent CPU usage in places. With constantly changing loads on the plugins. IE. If you are at 90% cpu usage with 5ms timeslice you can only tollerate 0.5ms jitter before the shit hits the fan. So the important question is not "does it work", it's "does it work under heavy load".
Re: Graillon 1.0, VST effect fully made with D
On Sunday, 29 November 2015 at 11:58:20 UTC, Guillaume Piolat wrote: I've never said the GC is compatible with real-time, it isn't. I said, we can avoid it in a small part of an application and be real-time. So D can do real-time (audio). Yes, but why say it if you don't use it after init? It's not new that D, like C++, can work like a more powerful version of C. Although I had to create a lot of fuzz to even get to this point where we now have at least the @nogc tag. A couple of years ago neither Walter or Andrei showed any sign of understanding that being GC reliant was an issue for a system level programming language. That attitude is pretty common for languages that ship with a GC, and is the reason for why people don't want audio software using it (or is boasting it).
Re: Graillon 1.0, VST effect fully made with D
On Sunday, 29 November 2015 at 12:28:49 UTC, Ola Fosheim Grøstad wrote: The sound samples sound quite a bit like the classic vocal sound of Infected Mushroom to my ears, which is cool. Infected Mushroom released another plugin recently: http://www.musicradar.com/news/tech/infected-mushroom-present-the-i-wish-granular-note-freezing-plugin-631043 I assume you are using a peak detector to get the consonants through and granular synthesis to do the frequency shifting in the time domain? It's a pitch-tracking poly-Bode-shifter. The pitch tracking part is secret(tm). The frequency shifting is regular, doesn't need Overlap Add like pitch-shifting. Maybe something like this for transients, or perhaps something less involved? http://recherche.ircam.fr/anasyn/roebel/paper/icmc2003.pdf The phase vocoders of IRCAM are very impressive at work, they have. I remember a demo where they changed male to female with algorithms tuned for a voice. But it has different latency characteristics, overlapped FFT easily goes into the 20/30 ms.
Re: Graillon 1.0, VST effect fully made with D
On Sunday, 29 November 2015 at 12:40:43 UTC, Ola Fosheim Grøstad wrote: On Sunday, 29 November 2015 at 11:58:20 UTC, Guillaume Piolat wrote: I've never said the GC is compatible with real-time, it isn't. I said, we can avoid it in a small part of an application and be real-time. So D can do real-time (audio). Yes, but why say it if you don't use it after init? Well, this fit some style of applications like video encoders too. With games I did have more problems with GC, unless pooling. Problems that C++ wouldn't have with malloc. It's not new that D, like C++, can work like a more powerful version of C. Although I had to create a lot of fuzz to even get to this point where we now have at least the @nogc tag. A couple of years ago neither Walter or Andrei showed any sign of understanding that being GC reliant was an issue for a system level programming language. That attitude is pretty common for languages that ship with a GC, and is the reason for why people don't want audio software using it (or is boasting it). There is a perception problem, and it's reason enough not to talk about this GC thing anymore. Because tt hasn't been a problem, was easily avoided, and now is just negative PR for nothing.
Re: Graillon 1.0, VST effect fully made with D
On Sunday, 29 November 2015 at 12:40:30 UTC, Guillaume Piolat wrote: On Sunday, 29 November 2015 at 12:28:49 UTC, Ola Fosheim Grøstad wrote: The sound samples sound quite a bit like the classic vocal sound of Infected Mushroom to my ears, which is cool. Infected Mushroom released another plugin recently: http://www.musicradar.com/news/tech/infected-mushroom-present-the-i-wish-granular-note-freezing-plugin-631043 Hmm, yes, that looks like a simple loop algorithm. One can do interesting things with simple effects, like zero-crossing slicing. Btw, I recently found out that an ex-colleague of me has created a song with them called "Nerds on Mushrooms", IIRC he is quite fond of the vintage game music soundscape. I assume you are using a peak detector to get the consonants through and granular synthesis to do the frequency shifting in the time domain? It's a pitch-tracking poly-Bode-shifter. The pitch tracking part is secret(tm). I remember the electro acoustic people here in Oslo (NoTAM) doing live pitchtracking 20 years ago, I believe they used an envelope follower of some sort. Just measuring the distance between the tops? That was to have the "electronic accompaniment" follow the lead of the vocalist I believe. Maybe something like this for transients, or perhaps something less involved? http://recherche.ircam.fr/anasyn/roebel/paper/icmc2003.pdf The phase vocoders of IRCAM are very impressive at work, they have. IRCAM has done a lot of interesting things. In the 90s they had the IRCAM workstation which was a NeXT cube with lots of DSP card so that you could run Max real time. But it has different latency characteristics, overlapped FFT easily goes into the 20/30 ms. It depends on how low down in frequency you need to go, a female voice is at 160 hz and up, and a child is at 250hz and up. In that frequency range one could do better. And at the cost of complexity you could use two FFTs, one for the lower range and another for the higher range. Or maybe one can use wavelets, but I don't know much about wavelet transforms (they don't map to cosine, so imagine it will be much harder to do well).
Re: Graillon 1.0, VST effect fully made with D
On Sunday, 29 November 2015 at 09:55:43 UTC, Ola Fosheim Grøstad wrote: On Sunday, 29 November 2015 at 09:12:42 UTC, deadalnix wrote: I see that if that RT music thing doesn't pan out for you, you can always become a psychiatrist. You are a man a many talents, congrats. Maybe you and Guillaume Piolat should try to tone down your french rhetorics? I don't think Ponce's product benefits from this (or from announcing that he is using a GC.). I must admit the inflammatory tone got me. Sorry to everyone reading this thread.
Re: Is there anyone willing to do the videos 18sex website?
On Sunday, 29 November 2015 at 02:19:30 UTC, mcss wrote: I want to find a partner to do the world's largest 18sex video site. Lol, such an ambitious project! Dlang definetely needs a success story of that kind :) Please keep us posted!
Re: Graillon 1.0, VST effect fully made with D
On Sunday, 29 November 2015 at 06:18:13 UTC, Jonny wrote: um, come on, you sit here and preach that I don't know what I'm talking about yet you can't even be right on the first sentence? jitter is the standard deviation of the timings. Do you know what standard deviation is? It is the square root of the sum of the squares... There is different "jitters": https://en.wikipedia.org/wiki/Jitter see at Sampling Jitter Audio plugins create latency if they are slow but not sampling jitter, which is a property of the sound card. What you mean is that when a plugin is slow it create a jitter sound when the get back? Also, if you simply removed the GC from D so it doesn't get called, then whats the point? Anyone can do that(more or less). If you used manual memory management, then whats the point? C++ already does that and does RT audio already. We know D can be made to do this already. No, I've seen people claim exactly the reverse, that D can't do RT audio. You even do so below. If you pause the GC so it doesn't get called a lot, then whats the point? If you run your software for 3 hours, if it going to survive or glitch? GC isn't paused, it doesn't trigger because there is no periodic allocations. Do you know what "design for the worse case scenario" means? While RT audio isn't life and death, it's treated that why by the professional community. It's important to me, else I wouldn't have ensure the GC never collects. Please stop the appeals to authority already. Unless you state who you are perhaps? Jonny the drummer. Just because it's acceptable to you to define RT audio in some way that justifies it for you does not mean it's RT audio. I'm not saying your software isn't RT, but if you use the GC in any way what so ever, you don't have RT audio... This doesn't make sense. If it doesn't glitch, doesn't introduce latency or jitter, then it's RT audio. You can try the plugin at home to verify that. regardless if it behaves like RT 99.99% percent. (there is something about guaranteed *maximum* latency that you have to deal with) Familiar with the IPlug framework? It takes locks in the audio callback. A lock isn't guaranteed to have a maximum latency, but it's very fast. That doesn't prevent successful software like KlangHelm's MJUC to work. https://github.com/olilarkin/wdl-ol/blob/cb51edc105c6cc927530a6ac0459dcee0097a23c/WDL/IPlug/IPlugVST3.cpp#L341 But wait! JUCE is also doing that. https://github.com/julianstorer/JUCE/blob/master/modules/juce_audio_plugin_client/VST/juce_VST_Wrapper.cpp#L582 It turns out the two most used audio plugins frameworks out there do things that don't have maximum latency predictibility. Have you gone bugger them?
Re: Graillon 1.0, VST effect fully made with D
On Sunday, 29 November 2015 at 10:14:40 UTC, Warwick wrote: We're talking about whether a plugin / audio code / runtime environment can deliver audio to a soundcard in a reliable manner so that you don't get audio drop outs. We're not talking about the jitter of a digital clock source that's used to control the actual sampling stream. It's similar but at the level of the audio buffer timeslice, not the unit delta of the sample stream. The jitter of an audio clock source is for electronic engineers not audio plugin developers. Thanks for saying this. Said it better than anyone. IE. If you are at 90% cpu usage with 5ms timeslice you can only tollerate 0.5ms jitter before the shit hits the fan. So the important question is not "does it work", it's "does it work under heavy load". A common counter-point to stay clear of glitches is stay way below 90% CPU usage, have larger buffers or a beefier CPU. If you are maxing out the CPU you are asking for problems, it's not just the plugins being unpredictable. After all our OS aren't RTOS.
Re: Graillon 1.0, VST effect fully made with D
On Sunday, 29 November 2015 at 08:12:17 UTC, Ola Fosheim Grøstad wrote: On Sunday, 29 November 2015 at 06:18:13 UTC, Jonny wrote: While, this doesn't prove you don't have a clue about jitter, my guess is, you don't. Yes, jitter is bad and worse than latency, but OS-X AudioUnits run at a high priority thread where you cannot do system calls, malloc or run a GC. So the GC statements are misleading. Wait. What GC statements are _misleading_? I've never said the GC is compatible with real-time, it isn't. I said, we can avoid it in a small part of an application and be real-time. So D can do real-time (audio).
Re: Graillon 1.0, VST effect fully made with D
On Sunday, 29 November 2015 at 11:15:41 UTC, Guillaume Piolat wrote: On Sunday, 29 November 2015 at 09:55:43 UTC, Ola Fosheim Grøstad wrote: On Sunday, 29 November 2015 at 09:12:42 UTC, deadalnix wrote: I see that if that RT music thing doesn't pan out for you, you can always become a psychiatrist. You are a man a many talents, congrats. Maybe you and Guillaume Piolat should try to tone down your french rhetorics? I don't think Ponce's product benefits from this (or from announcing that he is using a GC.). I must admit the inflammatory tone got me. Sorry to everyone reading this thread. :) What about writing a blog about the sonic qualities and measurable qualities of your plugin? I sure would want to read that. And I think that is more interesting to musicians than what language you use (which can easily be misinterpreted if you say you are not using C/C++ ;) The sound samples sound quite a bit like the classic vocal sound of Infected Mushroom to my ears, which is cool. I assume you are using a peak detector to get the consonants through and granular synthesis to do the frequency shifting in the time domain? Maybe something like this for transients, or perhaps something less involved? http://recherche.ircam.fr/anasyn/roebel/paper/icmc2003.pdf
Re: Graillon 1.0, VST effect fully made with D
On Sunday, 29 November 2015 at 15:13:41 UTC, Guillaume Piolat wrote: The hard thing about live pitch-tracking is getting the minimal latency keeping reliability. It's not that simple. You also want "voicedness", which is more challenging than pitch. I think they developed it for a specific work, but IIRC it was challenging to get it accurate. I don't now much about current pitch trackers, but I think you can do a high quality one for voice using filterbanks. Some people do resynthesis that way (and well, that is just an alternative to FFT after all). That's pretty much how cochlea works, I think, by having overlapping frequency bands. But it probably is hard to get right. I assume you can make a better pitch tracker that is specialized for voice by thinking about FoF synthesis, the sound of the voice is really a sequence of bursts of roughly the same shape (like granular synthesis in a way) and you should be able to figure out some statistical relationship between formants and how they change with pitch. I'm not saying it is easy. Probably a lot published on this though. I don't know what "voicedness" is? You mean things like vibrato? I've not tried the multiple FFT, I was worried pitch would lag oddly when changing FFT size. Perhaps it could work. I think it should work in theory, but you'll probably get some of complications due to the distortions that comes with the windowing function etc? And making a real time phase vocoder is more work than it looks like on paper... Obviously doable, but there are some "missing bits" in the theoretical descriptions. I guess that's why IRCAM can sell licenses to superVP. :) Or maybe one can use wavelets, but I don't know much about wavelet transforms (they don't map to cosine, so imagine it will be much harder to do well). I have trouble to imagine the reconstruction so don't use them (well, I did once, but didn't _get_ it). Yeah, I don't know. Still, in the past few years it has been popular with distorted and glitchy sounds, so maybe one could do some cool distorted effects with it.
Re: Graillon 1.0, VST effect fully made with D
On Sunday, 29 November 2015 at 15:34:34 UTC, Ola Fosheim Grøstad wrote: I don't now much about current pitch trackers, but I think you can do a high quality one for voice using filterbanks. Some people do resynthesis that way (and well, that is just an alternative to FFT after all). You are precisely right, if you don't need reconstruction nothing forces you to use the FFT! There is also a sample-wise FFT I've came across, which is expensive but avoids chunking. I assume you can make a better pitch tracker that is specialized for voice by thinking about FoF synthesis, the sound of the voice is really a sequence of bursts of roughly the same shape (like granular synthesis in a way) and you should be able to figure out some statistical relationship between formants and how they change with pitch. Looking for similar grains is the idea behind the popular auto-correlation pitch detection methods. Require two periods else no autocorrelation peak though. The rumor says that the non-realtime Autotune works with that, along with many modern pitch detection methods. I'm not saying it is easy. Probably a lot published on this though. I don't know what "voicedness" is? You mean things like vibrato? vibrato is the pitch variation that occur when the larynx is well relaxed. voicedness is the difference between sss(unvoiced) and zz (voiced). A phonem is voiced when there is periodic glottal closure and openings. When the sound isn't voiced, there is no period. There isn't a "pitch" there. So pitch detection tend to come with a confidence measure. The devil in that is that voicedness itself is half a lie, or let say a leaky abstraction, it breaks down for distorted vocals. I guess that's why IRCAM can sell licenses to superVP. :) Their paper on that topic are interesting, they group spectral peaks by formants and move them together.
Re: New D book available for pre-order: D Web Development
On Sunday, 29 November 2015 at 18:24:38 UTC, Kai Nacke wrote: On Wednesday, 25 November 2015 at 04:35:47 UTC, Nick_B wrote: Hi Nick! Yes, the book will be available in hardcopy. Proposed publication date is January 2016. Regards, Kai Kai - Are you saying that the hardcopy will be available Jan 2016 ? Nick
Learning D
The book "Learning D" by Michael Parker is available at half price through November 30: https://www.packtpub.com/application-development/learning-d I did not know it was out, but I bought a copy today, and it is quite a resource. It looks like it covers a lot of topics for which the documentation isn't helpful (at least to me) or nonexistent. "D Web Development" can also be preordered at half price: https://www.packtpub.com/web-development/d-web-development
Beta D 2.069.2-b2
Second beta for the 2.069.2 point release. New fixes: Bugzilla 15281: std\experimental\allocator\package.d not included in build script http://dlang.org/download.html#dmd_beta http://dlang.org/changelog/2.069.2.html Please report any bugs at https://issues.dlang.org -Martin
Re: Learning D
On Monday, 30 November 2015 at 02:36:01 UTC, bachmeier wrote: The book "Learning D" by Michael Parker is available at half price through November 30: https://www.packtpub.com/application-development/learning-d I did not know it was out, but I bought a copy today, and it is quite a resource. It looks like it covers a lot of topics for which the documentation isn't helpful (at least to me) or nonexistent. "D Web Development" can also be preordered at half price: https://www.packtpub.com/web-development/d-web-development Thanks for posting this! I wasn't aware. The publisher has yet to notify me.
Re: Learning D
On Monday, 30 November 2015 at 04:09:46 UTC, Mike Parker wrote: On Monday, 30 November 2015 at 02:36:01 UTC, bachmeier wrote: The book "Learning D" by Michael Parker is available at half price through November 30: https://www.packtpub.com/application-development/learning-d I did not know it was out, but I bought a copy today, and it is quite a resource. It looks like it covers a lot of topics for which the documentation isn't helpful (at least to me) or nonexistent. "D Web Development" can also be preordered at half price: https://www.packtpub.com/web-development/d-web-development Thanks for posting this! I wasn't aware. The publisher has yet to notify me. There's no Table of Contents or free sample, should add those so we can know more about the contents.
Re: Learning D
On Monday, 30 November 2015 at 07:24:35 UTC, Joakim wrote: On Monday, 30 November 2015 at 04:09:46 UTC, Mike Parker wrote: On Monday, 30 November 2015 at 02:36:01 UTC, bachmeier wrote: The book "Learning D" by Michael Parker is available at half price through November 30: https://www.packtpub.com/application-development/learning-d I did not know it was out, but I bought a copy today, and it is quite a resource. It looks like it covers a lot of topics for which the documentation isn't helpful (at least to me) or nonexistent. "D Web Development" can also be preordered at half price: https://www.packtpub.com/web-development/d-web-development Thanks for posting this! I wasn't aware. The publisher has yet to notify me. There's no Table of Contents or free sample, should add those so we can know more about the contents. Totally beyond my control. My most recent email asking about the book's status hasn't yet been answered. I think the release isn't quite fully completed yet. The print version isn't available from the PACKT site yet. Anyway, here's the TOC: 1. How to Get a D in Programming - introduction to the language, DMD, DUB and the sample project. 2. Building a Foundation with D Fundamentals - a massive chapter on the language basics. 3. Programming Objects the D Way - D's support for user-defined types: enums, structs, and classes. Includes module constructors and exception handling. 4. Running Code at Compile Time - a short chapter on different CTFE and other compile-time features (static if, version, string mixins) 5. Generic Programming Made Easy - templates 6. Understanding Ranges - introduction to ranges. Covers what they are, how to use them, and how to define them. 7. Composing Functional Pipelines with Algorithms and Ranges - a short look at functional style in D and a tour or std.algorithm & std.range. 8. Exploring the Wide World of D - a tour of the D ecosystem 9. Connecting D with C - binding to C, calling C from D and calling D from C. 10. Taking D Online - an example vibe.d project 11. Taking D to the Next Level - advice on where to go next for features not covered in the book.
