File Conversion And Upsampling; Pcm To Dsd Conversion; Pcm And Dsd Upsampling - Cary Audio Design DMS-700 Owner's Manual

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FILE CONVERSION AND UPSAMPLING

Through use of our TruBit™ Upsampling technology as described below, it is now possible to convert PCM files to DSD. For

those that prefer DSD this is an extremely powerful feature. Imagine taking any source or sample rate from network,

internet, Bluetooth, AirPlay, or SPDIF and converting to DSD64, 128 or 256. Whether you are in the PCM or DSD camp, The

DMS-700 accommodates both! Not only can you convert any PCM sample rate up to 768 kHz in the PCM domain, but

TruBit™ Upsampling also allows you to convert that 16, 24-bit PCM to a 1 bit direct stream digital signal with sample rates

of 2.8224 MHz (64 or standard rate), 5.6448 MHz (128 or Double rate), 11.2 MHz (256 or Quad rate). You can even up

convert a native DSD64 file to a higher level of DSD128 or DSD256. By using superior no compromise AKM DAC's, any

native DSD or PCM to DSD converted signal is processed as true DSD. In other words, The DMS-700 does NOT convert a

DSD signal to PCM within the DAC chips. This is somewhat rare as many so called DSD players actually convert the DSD

signal to PCM without you knowing it.

TruBit™ Upsampling is a powerful upsampling technology used to upsample lower sample rates to higher sample rate and

increases the bit depth to 32 bits for PCM and 1 Bit for DSD in the digital domain via a dedicated 128-bit DSP engine prior to

analog conversion. This can be very useful in achieving a more enjoyable listening experience. Once a native input signal is

changed to a selected higher sample rate, the bit depth will also automatically increase to 32 bits for PCM or change to 1 bit

for DSD conversion. However, like all-powerful tools, this too should be used prudently. We do not take a blanket "higher

is better" approach to upsampling. It is important to experiment with different rates depending on your source or source

material. Many times, a native rate might be preferred whereas some recordings or files formats might benefit from a

higher sampling rate, and so on.

The available selectable sample rates depend on the input signals original sample rate. For example, above 192 kHz the

available PCM rate(s) will only be in multiples of either 44.1 kHz or 48 kHz as follows:

Input signal rates of 44.1 or multiples of:

BYPASS (44.1) ---> 48 ---> 88.2 ---> 96--> 176.4 ---> 192 ---> 352.8---> 705.6

---> DSD64 ---> DSD128 ---> DSD256.

Input signal rates of 48 or multiples of:

BYPASS (44.1) ---> 48 ---> 88.2 ---> 96--> 176.4 ---> 192 ---> 384--->768

---> DSD64 ---> DSD128 ---> DSD256.

Pressing the "SRC" button on the handheld remote will cycle through the available sample rates.

"BYPASS" next to Upsample Rate means the DMS-700 will pass the input signal rate out in its native rate without any

upsampling.

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