My first time to post. I'm not skilled with Faust, but I had a long history with hardware digital reverby and fx. I cut my teeth at Lexicon, let 1977 up through 1988, shortly after Chris Moore had left, and just before David Griesinger showed up at the door with his prototype digital reverb. I've remained involved with hardware digital fx more then 40 year now. Still have a finger in
Emulating the Ursa Major 323 should not be a problem. I haven't seen the schematics (I'd be happy to look at them and comment where I can), but I'm confident that it's similar to Lexicon/Alesis/Eventide and so on. The Spin FV-1 ichip is a very accessible example, and a great platform. For that matter, the FV-1 itself is not exactly an end-of-life part. But it is in an evolutionary dead end. Keith Barr was an exceptional engineer, across the board. But he's been dead now almost 11 years. Hi final achievement has been stuck in time since then. If Barr had lived, we'd be on multiple generations beyond the FV-1. And yet the part is in manufacture still, and applied in any number of highly viable products. This device needs to be ported and extended in compilable form for implementation across a range of platforms. So yeah, save the Ursa Major. But don't forget to rescue the FV-1 and the classic architecture of hardware reverb and multi-fx. GaryInThailand On Mon, Apr 26, 2021 at 9:48 PM Yann Orlarey <orla...@grame.fr> wrote: > Hi, > > The issue of preserving musical works and equipment is indeed very > important and is a challenge for Faust. > > In 2008-2010 we incorporated in the compiler the possibility to > automatically generate the mathematical description of the computations > performed by a Faust program (faust2mathdoc) see > https://hal.archives-ouvertes.fr/hal-02158742/file/astree-icmc2010.pdf. > > At the Linux Audio Conference 2010, Sampo Savolainen presented a very nice > emulation of the Yamaha YC 20 written in Faust ( > http://lac.linuxaudio.org/2010/recordings/day1_1215_Emulating_a_Combo_Organ.ogv > ) > > In France, Alain Bonardi and Laurent Pottier have worked a lot on these > issues and recreated a number of historical pieces in Faust. > > Recently João Svidzinski and Vincent Tiffon have published an analysis of > "Songes" by Jean-Claude Risset with codes in Faust: > > (we) are very happy to announce the publication of the analysis of >> Jean-Claude Risset's Songes (1979) in the IRCAM Analyzes portal >> (unfortunately only available in French at the moment) . This is a long >> piece of work initially started with the participation of the composer >> himself before his death in 2016. This analysis allows the reader to get >> inside the code itself and discover Risset's world. This is a real >> immersion in computer music of the 1970s. >> https://brahms.ircam.fr/analyses/Songes/ > > > So yes, this question is very important and I think it could be one of the > themes of IFC 2022! > > Yann > > > Le lun. 26 avr. 2021 à 15:26, Giuseppe Silvi via Faudiostream-users < > faudiostream-users@lists.sourceforge.net> a écrit : > >> Dear Robert, >> >> I don't know the logic schematics you are speaking about, so I can't >> define my experience coherent as you require. But you have used some terms >> care to me: "open source" and "history alive". So I think it could be an >> exciting project to be shared with a community, merging experiences. Here >> you can find the SEAM project I founded: >> >> https://github.com/s-e-a-m >> http://seam-world.slack.com/ >> >> SEAM is a small community, and (thanks to the Faust qualities) there are >> some history pieces alive. (Reverbs are pieces of interest, like an entire >> musical composition, like many other things): >> >> If You have the pleasure to share something with us, maybe we can discuss >> the experience we have to help you. Nevertheless, even if you create your >> repository with some materials, I will look inside it and consider how I >> can help. >> >> I think it is a fascinating matter. >> >> PS. the shortest answer to both your questions is yes. >> >> Kind Regards >> Giuseppe Silvi >> >> >> >> > On 24 Apr 2021, at 16:08, Robert-André Vettel <ra.vet...@live.de> >> wrote: >> > >> > Dear all, >> > >> > since I'm going to get into quite a bit of detail, I'll start with the >> tl;dr first :D >> > • has anyone experience with electronic logic circuits and might >> help me to analyse and understand some schematics? >> > • is it possible to port an existing digital circuit (consisting >> of a clock, timing signals, counters, latches and memory read/writes) into >> Faust? >> > Now for the long version: >> > In 2019 I was fortunate enough to acquire an old Ursa Major Stargate >> 323 hardware reverb from the institute of musicology at the JGU Mainz >> (thanks Albert!). Ursa Major was founded by Christopher Moore and is mostly >> know for the Space Station Delay, which some industry professionals still >> swear by. The Stargate 323 Reverb is an evolution of the Space Station >> delay algorithms. Since those reverbs are very rare and no official digital >> emulations exist, I want to try and help keeping this piece of reverb >> history alive . >> > >> > To be clear: I'm talking about straight up reverse-engineering here. If >> the moderators think this is something that shouldn't be discussed publicly >> on this list, please let me know. The Ursa Major brand was sold to AKG in >> 1986 and no products have been released under this brand since then. As far >> as I know all related patents have expired. Christopher Moore previously >> continued working under the brand name Seven Woods Audio, but the website >> is not available anymore and the domain name is now for sale. I also want >> to make this project completely open source and do not have any commercial >> intentions. >> > >> > While the reverb algorithms are proprietary, the digital circuit design >> is fairly simple by today's standards. Ursa Major was a small company and >> inside is just a lot of 8bit EPROMS, Latches, Counters etc. all clocked by >> an 8Mhz ceramic oscillator. No CPU or proprietary silicon whatsoever. >> Because the entire circuit structure is completely humanly readable, my >> idea is to just "port" the digital circuit into modern software instead of >> trying to approximate the algorithms. So far I have made quite some >> progress in understanding and analysing the digital circuit components. The >> official service manual is incredibly detailed and I have also dumped the >> contents of all eeproms. But I'm just a hobbyist and if I want this project >> to succeed, I'm going to need help. Which brings me back to my initial >> questions and this mailing list :) >> > >> > I'm happy to hear any questions/ideas/etc.! >> > >> > Best, >> > Robert >> > >> > _______________________________________________ >> > Faudiostream-users mailing list >> > Faudiostream-users@lists.sourceforge.net >> > https://lists.sourceforge.net/lists/listinfo/faudiostream-users >> >> >> >> _______________________________________________ >> Faudiostream-users mailing list >> Faudiostream-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/faudiostream-users >> > _______________________________________________ > Faudiostream-users mailing list > Faudiostream-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/faudiostream-users > -- Gary Hall โสตะ-สติ: Mindfulness with Sound http://soundcloud.com/hua-hin-sound-cloud ph. (0) 89 181 6328
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