On Mar 4, 2020, at 12:01 PM, music at davidelias.com wrote:
Aloha & Welcome to the hi-res world with DSD and MQA as well as PCM above 16/44.1. I was introduced to DSD long ago and still work quite a bit at what I came to call the art of listening, a lot of which has to do with retraining my ears not to listen to music the way compressed CD was first presented in the early 80’s. In 1999 I heard DSD64 from a Sony prototype 2-track (Stereo) archive machine on some of the Sony analog masters converted to DSD and captured in the new PDM (not PCM) approach to digital audio. I finally had some relief in listening to digital audio and could relax with what I was hearing as a counterpart to the original analog recording. I’ve been working at those listening skills ever since and there are many dimensions to them.
To answer some of your questions about free DSD demos, the first page I can send you to is here:
I worked with OPPO for many years before they shut their doors in the US. Great company and products for value and quality. I still use the 103 here for SACD and CD mostly. My samples on this OPPO page can get you into comparing some of the basic variations in digital audio from straight PCM, to hi-res PCM, to DSD and then MQA.
In prior years I have tried to upsample my own DSD masters to DSD128 and DSD256 and never had a conclusive result as far as listening and comparing to the original DSD64. So I left that aside until NativeDSD did their conversions using more modern tools and gear. Things improved dramatically for my ears under their process of the DSD resample. In addition, I use a fantastic product from iFi Audio that has the ability to upsample/resample everything it receives streaming from MP3 (any bitrate) to CD (ie, TIDAL) to higher res (Qobuz 24/96) and first filter then resample as DSD1024 before converting to analog and preamplification through their analog tube component.
This is the iFi Audio Pro iDSD Preamp/DAC — I wrote about it on my blog (https://art-of-listening.com) and it was published at Positive Feedback Online (https://positive-feedback.com/reviews/hardware-reviews/ifi-audio-pro-idsd-dac/).
If you take the time to download and compare some of the samples on the OPPO page, let me know if there’s a particular song that works best for you as far as comparative listening and I can send you a DSD128 of that for you to play in your OPPO. The 205 by the way can be used as a DAC connected via to the PC and support DSD rates higher than 128. Mac has problem going above DSD128. I use JRiver as my main computer audio player setup. The iFi Pro iDSD by the way can act as a regular USB DAC as well up to DSD512 playing downloaded audio.
The MQA approach (PCM not PDM) to higher sample rates makes the headache of the large DSD files go away for downloading as well as storage. You will see from my samples that the MQA remaster is not much larger than any 24/44.1k download (slightly larger than a CD ripped to FLAC). I measure the streaming bitrate of my MQA which unfolds to 24/352.8k at well under 1mbps. This is incredibly useful for anyone streaming, especially in places like here in East Hawaii where cell service and internet service are not fat pipes like in the big cities.
As I’ve written on my blog, MQA does an incredibly good job correcting the pre- (most important) and post-echo ringing in PCM masters. This is most effective on the Red Book CD Masters at 16/44.1k but adds sonic improvements at the higher rates as well like the popular 24/96 (ringing is not as severe on higher bitrate recorded/mastered work, nor does it exist for sonic detriment in DSD).
As you know already, hi-res is a big subject with lots of diversions to follow and things to try to get your best sound to your ears from your equipment in your rooms for listening and headphones. I’m happy to send you these samples and hope you take some time to compare them. The DSD128, DSD256 and DSD512 from NativeDSD are further improvements on what I get from my DSD masters. I wrote about this on my blog as well.
Here is some summary of things I’ve been addressing in hi-res lately:
If you search the web for OPPO 205 and DSD256 you can find more info on how the OPPO can play higher res DSD as a DAC from players like JRiver or Foobar2000 on the PC/Windows.
Hope all this helps.