Whiner's Woad

RE: The Four Truths of Digital

68.92.155.67

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So, explain this, because you are making no sense.

"The noise floor (resolution) of most audiophile CDs - Chesky, Hyperion, Telarc, etc. - has been at the 20-bit level since 1993...and we were never told. We were told we needed "new formats".

Note that I'm saying 20-bit *level*, not 20 actual bits. There are still 16 bits on the disc..but..the resolution is 20-24db greater. True hi-rez files, JA stated, were "different", not better."

1. Are you talking the noise floor of the recording? The ambient room noise will be exponentially louder than any electronic or digital artifact in number crunching.

2. 20 bit level, not the 20 bits? What? Are you talking about the RMS of the audio? Are you talking about the levels of the CDs? There are no standards for that. Are you talking about what bit rate the engineer calibrated to analog world? Most converters represent 0 (+4 dBV) as either 12, 14, 16 or 18 bits. It depends on the amount of headroom you need. This is all program dependent and there is no set standard. Explain this please.

3. The resolution is 20 to 24dB greater? How can you equate a decibel level (with no reference, making it meaningless) with sample rate and/or bit depth? If you are seeing a 20 to 24 dB difference in level, you are seeing a reduction of the RMS, which is bringing the level up. That is massive compression and brick wall limiting in the mastering process, which will make all lower ambient noise as loud as the program material, drastically change the mix, the EQ and remove dynamics to the point that the peaks are square waved off. So, if this is what you are experiencing, welcome to The Loudness Wars. Do a Google on that.


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