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In Reply to: RE: Why does my 20 year old NON-NOS ladder DAC sound so good? posted by ahendler on June 02, 2014 at 09:33:49
"Ladder dacs are the only dacs that keep pcm as pcm"
Sorry, no DAC keeps PCM data as PCM. All DACs convert digital data into an analog waveform. What matters is what this analog waveform is and how it sounds, not the internal workings of the DAC.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
Follow Ups:
I disagree Tony. I think the workings are important because all of them create unintended artifacts that seem to have an impact on the final outcome as heard by humans.
"I think the workings are important because all of them create unintended artifacts that seem to have an impact on the final outcome as heard by humans."
The workings are relevant only to those who know and understand the mechanisms involved and how they interact with perception. In most cases the inner workings of DACs are proprietary and the public information inadequate. In addition where there is more detailed information available it is generally beyond the scope of most audiophiles' understanding.
Most audiophiles are challenged by the implications of the various digital formats and the artifacts these necessarily imply. Unless they are technically curious and prepared to do a lot of homework, these people should confine themselves to the "What?" rather than the "How?" or "Why?". This means listening to a range of recordings in a variety of formats through a variety of playback systems and being very careful about attributing causes for what one hears. Components interact with recordings and with each other and it can be very hard to sort out these interactions by subjective listening. Measurements are also likely to be useless, because they were developed for older technologies and are being used and abused for marketing purposes.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
I think you are wrong, whether or not someone is technically savvy has no bearing on what they hear. My point is that those details of how the DAC actually works create artifacts that are AUDIBLE. I don't really care who understands what. I am quite sure many of these artifacts have audible consequences...mostly detrimental to realistic playback.
The issue isn't what someone hears, it's whether they correctly identify the cause of what they hear, so as to be able to make intelligent decisions about their system and its setup.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
As long as it is a repeatable phenomenon then it is not really that important to know the details of the root cause.
I guess what I was trying to say was that the nos ladder dacs process a pcm file staying as multibit as opposed to converting to single bit.
Alan
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