Bunpei Posted March 29, 2014 Share Posted March 29, 2014 If you are interested in DSD256 sources originally recorded in the sampling rate, you can try this release by a Japanese group "Wechseldominante" from this page (in Japanese only). Three live piano solos are available on this page, ƒ”ƒFƒNƒZƒ‹ƒhƒ~ƒiƒ“ƒe (Please select "Works" tab of the page. You will find "DSD256" signs among Japanese characters.) These tunes are recorded by employing ElectrArt's AT1201 ADC and UDA2 USB interface, http://www.computeraudiophile.com/f6-dac-digital-analog-conversion/direct-stream-digital-or-not-direct-stream-digital-16093/index36.html#post269984 To my regret, I have no definite idea on a category of those piano plays. Link to comment
bmoura Posted March 29, 2014 Share Posted March 29, 2014 Thanks. I'll check it out. Always looking for more DSD for the exaSound e28 ! Link to comment
tgx78 Posted March 29, 2014 Share Posted March 29, 2014 Thanks! I will listen to them on my e20 tomorrow. I still enjoy solo violin dsd256 file you sent to me last year. SR Tesla Plex SE > 8 PS Audio Noise Harvesters > Blue Circle PLC Thigee > HiDiamond P4 > HQ Player > Jitterbug > USB Adapter > Regen > USB adapter > exaSound e20 mkIII (with TeddyPardo PSU) > High Fidelity CT-1UR > Emotiva XPA-1s > OTA Storatos SC > Magnepan 3.6R custom crossover + 2 REL T-7 Link to comment
bmoura Posted March 30, 2014 Share Posted March 30, 2014 Still trying to download these here. The downloads start but never seem to complete. Link to comment
Bunpei Posted March 31, 2014 Author Share Posted March 31, 2014 In my case, for one file, I could download it with no error. For two files, after trials of several times, I managed to download them with full length file sizes. Link to comment
tgx78 Posted March 31, 2014 Share Posted March 31, 2014 Ok I have listen to this tracks few times now and it confirms that getting a truly accurate tonality and decay of a simple piano is one of the most if not the most difficult instrument to reproduce. I notice fuzzy imaging of this instrument when recorded.. sound of notes filling up the entire soundstage as if the keyboard were 50 feet wide. Bunpei, I think I much preferred the violin recording. SR Tesla Plex SE > 8 PS Audio Noise Harvesters > Blue Circle PLC Thigee > HiDiamond P4 > HQ Player > Jitterbug > USB Adapter > Regen > USB adapter > exaSound e20 mkIII (with TeddyPardo PSU) > High Fidelity CT-1UR > Emotiva XPA-1s > OTA Storatos SC > Magnepan 3.6R custom crossover + 2 REL T-7 Link to comment
Bunpei Posted March 31, 2014 Author Share Posted March 31, 2014 ... Bunpei, I think I much preferred the violin recording. ... I completely agree with you on this point. The violin recording was prepared by Professor Yamazaki, the first advocate of 1 bit digital audio format, using his proprietary 2nd order delta-sigma modulator with high-performance microphones. Solo part of Paganini's concerto was played by Hungarian violinist, Kristóf Baráti, at Stradivali Society in Chicago. Link to comment
Hiro Posted April 3, 2014 Share Posted April 3, 2014 I completely agree with you on this point.The violin recording was prepared by Professor Yamazaki, the first advocate of 1 bit digital audio format, using his proprietary 2nd order delta-sigma modulator with high-performance microphones. Solo part of Paganini's concerto was played by Hungarian violinist, Kristóf Baráti, at Stradivali Society in Chicago. There appears to be a need for designing a state-of-the-art DSD ADC capable of operating natively at 128FS (and optionally at 256FS). I'm sure that if Professor Yamasaki, Gus Skinas, Andreas Koch and Ted Smith sat together and designed one, it would be a killer front end. Link to comment
bmoura Posted April 3, 2014 Share Posted April 3, 2014 There appears to be a need for designing a state-of-the-art DSD ADC capable of operating natively at 128FS (and optionally at 256FS). I'm sure that if Professor Yamasaki, Gus Skinas, Andreas Koch and Ted Smith sat together and designed one, it would be a killer front end. That would be quite a project with those experts. Does the Professor plan any more DSD256 recordings? Link to comment
Hiro Posted April 3, 2014 Share Posted April 3, 2014 BTW - does anybody know if the Emm Labs ADC8 MK IV is the only chip-less 128FS/5.6MHz ADC available at the moment? EMM Labs - ADC8 MkIV Multichannel Analog to Digital Converter Link to comment
Hiro Posted April 3, 2014 Share Posted April 3, 2014 That would be quite a project with those experts. Does the Professor plan any more DSD256 recordings? Don't know about any future recordings from Prof. Yamasaki, but a chipless 5.6~11.2MHz ADC designed by the above team of engineers could enable every recording engineer to make SOTA recordings in double or quad DSD... Link to comment
Bunpei Posted April 6, 2014 Author Share Posted April 6, 2014 I met Prof. Yamazaki last November and December. He said nothing about a possible further release of his 11.3 MHz 1 bit recordings. He said that a technology for recording at 45 MHz has been achieved already. He always says he is interested in a non-delta-sigma modulated 1 bit recording with an extremely high sampling rate. Link to comment
Hiro Posted April 6, 2014 Share Posted April 6, 2014 I met Prof. Yamazaki last November and December. He said nothing about a possible further release of his 11.3 MHz 1 bit recordings. He said that a technology for recording at 45 MHz has been achieved already. He always says he is interested in a non-delta-sigma modulated 1 bit recording with an extremely high sampling rate. Do you know what he meant by a "non-delta-sigma modulated 1bit recording"? His previous recordings were done using his proprietary 1bit delta-sigma modulator, weren't they? Link to comment
Bunpei Posted April 7, 2014 Author Share Posted April 7, 2014 I'm afraid that I might not understand Prof. Yamazaki's idea exactly. My interpretation of "non-delta-sigma modulated 1 bit recording" is a simple PDM that involves GHz order sampling. Apart from that, his violin recording used a "non-aggressive" delta-sigma modulator of the 2nd order. Link to comment
Hiro Posted April 11, 2014 Share Posted April 11, 2014 I'm afraid that I might not understand Prof. Yamazaki's idea exactly.My interpretation of "non-delta-sigma modulated 1 bit recording" is a simple PDM that involves GHz order sampling. Apart from that, his violin recording used a "non-aggressive" delta-sigma modulator of the 2nd order. Yet in the case of the recording made with the 2nd order delta-sigma modulator we are still talking about DSD or Delta Sigma Direct recording. Link to comment
Hiro Posted April 11, 2014 Share Posted April 11, 2014 I met Prof. Yamazaki last November and December. He said nothing about a possible further release of his 11.3 MHz 1 bit recordings. He said that a technology for recording at 45 MHz has been achieved already. Since DSD at 128fs and 256fs requires a very accurate clock to show its full potential, I would imagine the 45MHz DSD recorder must be using an absolute best clock developed to date. Maybe something like the 1-bit, 100MHz clock Bruno Putzeys developed for his Mola Mola DAC... Link to comment
Bunpei Posted April 14, 2014 Author Share Posted April 14, 2014 As I will meet Prof. Yamazaki at the next meeting of 1 bit research which will be held on June, I will ask him some details of his recording devices. At least I can say he is not a person of "audiophile" pursuing "the best Hi-Fi", but of DIY "nuts-and-bolts" personality. By the way, he retired from Waseda University in Tokyo at the end of last March. Link to comment
Hiro Posted April 23, 2014 Share Posted April 23, 2014 It would be great if Prof. Yamazaki could turn one of his DIY A/D designs into a production unit. As far as I know, the Emm Labs ADC8 MKIV is the only chip-less ADC on the market capable of 128FS recording, and the converter is already 10 years old... I would assume that with today's improved clocks (100MHz, 1bit) one could get even further improvements in direct DSD capture. Link to comment
Bunpei Posted May 13, 2014 Author Share Posted May 13, 2014 Yes, we can choice very high performance and small size OCXOs of near 100MHz frequencies with reasonable cost. Ultra Low Noise and Low Power Consumption OCXO - diyAudio They are offering samples for evaluation though you have to return them after your evaluation. Link to comment
Nikhil Posted February 25, 2016 Share Posted February 25, 2016 Resurrecting an old discussion after interacting with Bunpei the OP of this thread. I had some initial "starting trouble" with downloading the files (feedback given) but still managed to get most of the material. Given that this discussion first took place two years ago during the early days of DSD, it might be of interest to revisit these recordings with the new gear now available. Initial impressions of these recordings, which are native DSD, are excellent. The piano is one of my favorite instruments to listen to and some of the pieces are exquisitely recorded. Regards. Custom Win10 Server | Mutec MC-3+ USB | Lampizator Amber | Job INT | ATC SCM20PSL + JL Audio E-Sub e110 Link to comment
Nikhil Posted February 28, 2016 Share Posted February 28, 2016 The violin recording was prepared by Professor Yamazaki, the first advocate of 1 bit digital audio format, using his proprietary 2nd order delta-sigma modulator with high-performance microphones. Solo part of Paganini's concerto was played by Hungarian violinist, Kristóf Baráti, at Stradivali Society in Chicago. Breathtaking recording - listening to this was a real treat. Huge dynamic swings with real presence of the instrument in the room. Musicscope analysis of this recording: Custom Win10 Server | Mutec MC-3+ USB | Lampizator Amber | Job INT | ATC SCM20PSL + JL Audio E-Sub e110 Link to comment
edtsui Posted March 6, 2016 Share Posted March 6, 2016 Where can one download the violin recording? Would love to try it out! Link to comment
Bunpei Posted March 6, 2016 Author Share Posted March 6, 2016 Hi, edtsui! Would you please read this new post? http://www.computeraudiophile.com/f13-music-downloads-and-streaming/paganini-violin-solo-dsd256-11-2-mhz-1bit-recording-professor-yamasaki-waseda-university-27787/#post517731 Bunpei Link to comment
edtsui Posted March 6, 2016 Share Posted March 6, 2016 Thanks for your prompt and helpful advice. My problem is even with your very clear instruction on the other post, it is simply beyond me to convert the file. I am rather incompetent when it come to using different computer programs. Appreciate very much your guidance though. Link to comment
Nikhil Posted March 8, 2016 Share Posted March 8, 2016 The file I have is in .dff format. I can send it to you via Dropbox. Please let me know by pm if you would like to have a copy. Regards. Custom Win10 Server | Mutec MC-3+ USB | Lampizator Amber | Job INT | ATC SCM20PSL + JL Audio E-Sub e110 Link to comment
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