How is that different from reversing the polarity after the fact during playback?
Why do you believe this? Do you have any Wave files or FFT graphs or oscilloscope images that show PCM can't capture transients whose rise times equate to 20 KHz?
Again, I look forward to hearing one or two files you post that sound different when the polarity is reversed.
It is no different, whenever is the polarity inverted in the absolute sense.
It can be practically inverted many times in either the recording and/or reproducing chain; as long as the listener is presented with the correct absolute polarity, it is OK.
This is done because sometimes various electrical circuits that do offer other advantages ( lower noise...) are used despite being absolute polarity inverting.
From decades of experience listening to phono cartridges/records it clearly emerged that reasonably flat response well past 20 kHz is required - it produces FAR more conviencing soundstage with recordings that did capture it. DSD128 is the first digital format capable of usable resolution to record the performance of phono cartridges on the most acid test, the square wave response. Any PCM up to 192/24 will distort the fine high frequency/time detail of the better cartridges to the point it can not no longer be distinguishable between two very similar cartridges/ styli. I will be publishing these photos from ANALOG display ( digital storage in Tektronix scope basically giulty of the same as PCM - it IS PCM !!! ) in Turntable Setup thread
as a part of the forthcoming posts on phono cartridge electrical loading. There will be plenty of those - please allow some time, as the whole process will take quite some time and I do not want readers to jump to the wrong conclusion by looking at the very first picture pulled out of context.
The differences among different phono cartridge designs will be presented, along with VERY SHORT music samples( because of copyright reasons ) in DSD128. For the correct impression, native DSD128 playback is mandatory. I will also give 48/24 PCM version of the same short DSD128 clips for those without native DSD playback capability - but these can not tell the true story to the full.
Please note that I consider DSD128 the very first usable digital audio format - like the Yugo was the lowest quality usable car. ( And what little Yugos did hit the USA shores, were spiffed up fully loaded models, unless more bare bones models available in what used to be Yugoslavia ).
Edited by analogsurviver - 3/3/14 at 3:55am