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A hypothetical relating to DSD and File Sizes

post #1 of 3
Thread Starter 

I'm curious as to the response to the recent blow up DSD. I realize that it has been around for a long time, but it seems that recently it has been gaining popularity with more and more 'portable' devices supporting it. 
 

I know that DSD IS technically better, but the file sizes are colossal when compared to lower-res. formats, even that of FLAC or ALAC (to which, if one was ignoring the fact the DSD formats are better, one would debate the ability to hear any difference when compared to it). 

Hypothetically, if DSD and other forms of high-res. formats were adopted as the norm for everyday audio (such as anyone on the street that you would ask, would accept mp3, AAC, etc, as the norm), what would happen in relation to the immense storage requirements for these audio files? Would a new method of compression be developed to lower the file size, thus compromising the sonic quality? Or would the general public 'just cop it', as the the ever increasing storage capability of hard drives mean we're able to cope?  

Cheers, 

Connor 

 

post #2 of 3

I don't think DSD is better than "high-res" PCM. With DSD you get lots of high frequency noise (so you have to low pass filter again .. kinda ironic) and the conversions to edit ..

 

 

I also don't think that new codecs would be developed. What we have works very well, so I guess you'd have to convert again to PCM to encode as AAC, for example, and feed the D/A converter PCM instead of converting once more to DSD again.


Edited by xnor - 9/22/13 at 7:23pm
post #3 of 3

Lossy compression of DSD might not make much sense anyway, since the psycho-acoustical models of the codecs are not aware of the alleged benefits of DSD (that is, preserving the extra high frequency information would be a low priority for the encoder).

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