Intersample Overs in CD Recordings

Informação interessante sobre up-/over-sampling de Redbook e como a expansão do headroom permite aumentar a fidelidade da conversão.
Curiosamente a primeira vez que ouvi falar disto foi à uma mão cheia de anos pela Lyngdorf a propósito do seu leitor de CD.


Intersample Overs in CD Recordings - Benchmark Media

When newer technologies are properly applied, the CD can deliver stunning results that closely rival the high-resolution formats. A significant improvement can be gained through the use of high-headroom interpolators in D/A and SRC devices. This paper shows how intersample peaks can be reconstructed and rendered without clipping.


https://benchmarkmedia.com/blogs/application_notes/intersample-overs-in-cd-recordings

Na página do modelo actual a Lyngdorf menciona a tecnologia utilizada para lidar com o inter-sample clipping:

http://lyngdorf.com/cd-2/

ICC (INTER-SAMPLE CLIPPING CORRECTION)

When music is being mastered, the level is often very high; upon analysis you will often find several consecutive maximum samples, indicating something has been clipped away from the original signal. Audio that exceeds 0 dBFS (decibels relative to full scale) will sound very compressed because the headroom is nonexistent. Sadly, this harsh sound is often related to digitally stored music, as compared to the sound of vinyl. In the CD-2 we reduce the gain with 3 dB; thus, you will enjoy the full dynamic range and a more distortion-free sound.