CD
Format 16 bit PCM
Sampling frequency 44.1 kHz
Dynamic range 96 dB
SACD
Format 1 bit DSD
Sampling frequency 2822.4 kHz
Dynamic range 120 dB
HDCD is a compressed format encoded on a regular cd with the same sampling rate only that the depth is 20 bits instead of 16. you need a HDCD decoder in the player to play HDCD's
SACD's use a layered CD/DVD combination that can be read on both a regular cd players and SACD player, there are other combination's where a SACD can only be read by SACD players.
Perfect reconstruction of a signal is only possible when the sampling frequency is greater than twice the maximum frequency of the signal being sampled so a CD can produce a frequency range of 20 Hz to 20kHz and a SACD (played on a SACD player) can produce a range of 20 Hz 50 kHz. anything above can not be encoded without distortions that exponentially increase as you go above the range.
S/PDIF Toslink Optical orCoax are essentially the same signal and are theoretically capable of carrying data at 125 Mbit/s
When connected to a CD player the data is sent uncompressed at 48 or 96Khz, compressed data for formats like Dolby/DTS can send much more information across.
Hope it helps.
Format 16 bit PCM
Sampling frequency 44.1 kHz
Dynamic range 96 dB
SACD
Format 1 bit DSD
Sampling frequency 2822.4 kHz
Dynamic range 120 dB
HDCD is a compressed format encoded on a regular cd with the same sampling rate only that the depth is 20 bits instead of 16. you need a HDCD decoder in the player to play HDCD's
SACD's use a layered CD/DVD combination that can be read on both a regular cd players and SACD player, there are other combination's where a SACD can only be read by SACD players.
Perfect reconstruction of a signal is only possible when the sampling frequency is greater than twice the maximum frequency of the signal being sampled so a CD can produce a frequency range of 20 Hz to 20kHz and a SACD (played on a SACD player) can produce a range of 20 Hz 50 kHz. anything above can not be encoded without distortions that exponentially increase as you go above the range.
S/PDIF Toslink Optical orCoax are essentially the same signal and are theoretically capable of carrying data at 125 Mbit/s
When connected to a CD player the data is sent uncompressed at 48 or 96Khz, compressed data for formats like Dolby/DTS can send much more information across.
Hope it helps.