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Ittaku

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Ittaku last won the day on February 9 2018

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About Ittaku

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  • Birthday 02/03/1970

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    Melbourne
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    Australia
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    Con

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  1. 4x470uF Nichicons will do as well at about the same price. Nichicon are well renowned and the standard for PSU electrolytics. https://www.tme.com/au/en/details/uep1j471mhd/tht-audio-electrolytic-capacitors/nichicon/
  2. Yeah I wasn't sure what quality you were aiming for though. That's their top range, they have some "standard quality" ones as well.
  3. A couple of these might suffice if you're after high quality https://www.hificollective.co.uk/catalog/1000uf-63v-audio-note-kaisei-electrolytic-capacitor-non-polar.html or one of these at 2200uF https://www.hificollective.co.uk/catalog/audio-note-kaisei-2200uf-63v-bipolar.html
  4. Doesn't look like he's the only one that can approve changes? It's a harmless low risk patch and doesn't break the format or any existing tools so it's hard to see what the great objection would be.
  5. Here's the same file (all from http://www.2l.no/hires/) at 2xDSD (DSD128). Basically double the sample rate, double where the switching noise begins. If your aim is to get more ultrasonic frequencies back during your playback, you will benefit from higher DSD rates. If, on the other hand, it's to avoid the audible effects of the filter, then single rate DSD is enough. For the record, I cannot tell these two files apart. They also offer a 4xDSD variant of the same track, and I still can't hear any difference. No need to do any ABX testing as I can't tell them apart even unblinded. Looks to me like high DSD rates are just as useless as PCM files going above 88kHz sample rates. I might add something that people might find amusing - DSD or SACD is basically the digitally recorded equivalent of class D amplification in the way it works. So if you're a believer that SACD sounds more analogue than CD, but are opposed to class D amplification, you might want to reconsider your position, especially with the latest class D amplifiers.
  6. If you're talking about when Tesla buy it back from the customer and then sell to another customer, that's hardly the same thing as transferring it privately from one to another.
  7. This is just a bit of a journey of my own to understand SACD better since I pretty much missed out on it entirely. So this makes it a bit clearer. Looking at a 1xDSD file and zooming into the range to 50kHz I can see there is music information up to 50k, and possibly beyond, but there is progressively more switching noise that drowns it out. I can see why many filters default to 30kHz and optionally can be set up to 50. Looking at this now I suspect that any audible advantage of SACD over CD had nothing to do with using less bits and more sample rate. By moving the antialiasing filter to 30kHz from 22.05kHz it means the filter would have no effect on phase and amplitude in the audible range up to 20kHz without extensive processing power.
  8. This is wrong. All software features are transferred unless you buy a write-off vehicle and try to repair it.
  9. Thanks, but what I contributed really is just a trivial change compared to the genius that is in the rest of the flac code.
  10. Good news about libflac. They've approved my changes so they should be pulled into the master branch soon which means the next version of flac to be released will support sample rates up to 1Mhz out of the box. https://github.com/xiph/flac/pull/219
  11. It turns out my analysis software can read DSD files directly and I get exactly the same result. Looks to me like the SACD is just repackaged CD data. That is a hell of a lot of ultrasonic noise. I downloaded a 8xDSD sample from nativeDSD and got the same sort of result as well. I wonder what's going on, and why the rip example above isn't like that. 🤔
  12. Yeah don't want that thanks. I can get a new non-MQA one for that price which is all I want.
  13. Okay, it must be the sox patch I was using that's responsible that simply targets for a 44kHz final. Here's an SACD rip to 88kHz someone else provided. That makes much more sense than what I managed to get. Time to look more closely at the code itself.
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