Nuovi lettori cd/sacd Marantz parliamone

[AudioLover]

siccome converte tutto in dsd questo lettore sarebbe interessante capirne il comportamento

[AudioLover]

 

When I asked Rainer why upconversion is used, he pointed out that since the early nineties, DACs haven't worked internally in pure multi-bit PCM:

 

 

"Nowadays, PCM is internally transcoded to 3-5 bits with all kinds of fancy algorithms, and then converted at very high speeds. In the case of nineties Philips designs like DAC-7, PCM was converted to Bitstream, which we now call DSD, and this needed only a switch running at very high speed. The system had much better linearity than standard PCM, and today's converters are so much better still. So true PCM converters could never reach the specs of today."

 

 

The engineers have worked hard on those "fancy algorithms" of which Rainer speaks. "We developed Marantz Music Mastering because we found some weak spots in the signal processing chain, similar to what we figured out with digital filters in the late nineties", he adds. "So we improved the oversampling algorithm and developed our own noise-shaper – which is the trick part of the algorithm where PCM gets a bitstream. The outcome is DSD256, where 44.1kHz is converted to 11.2MHz and 48kHz to 12.288MHz. Because we want to avoid any sample rate conversion, we decided to work with two master clocks – one for 44.1kHz and multiples, and another for 48kHz and multiples." All digital audio fed into the DAC gets the same number-crunching treatment – regardless of source and ranging from 44.1kHz to 384kHz.

 

[AudioLover]

 

All digital streams are converted to DSD256 using the Marantz Musical Mastering (MMM) technology. PCM data are reclocked, then processed by a 32-bit floating-point DSP to produce a 1-bit/11.2MHz sigma-delta modulation stream. Those high-frequency pulses are then passed through the player’s MMM Conversion Stage—a DSD-to-analog low-pass filter—to the analog circuitry.

 

[TetsuSan]

Il 07/01/2025 at 16:13, Ricky81 ha scritto:

Salve a tutti volevo chiedere se collegando una chiavetta o HD con file dsd o iso sacd il 30n lascia tutto in dsd o converte in pcm

Non legge le ISO. Io ho collegato un hard disk USB da 4 Tb formattato NTFS. Con il display a 3 righe di testo si naviga anche da telecomando. Non lo legge immediatamente, sembra che ci metta qualche minuto a bufferizzarsi le file allocation table. Come hai riportato, converte tutti i formati pcm in DSD256

[TetsuSan]

Il 08/01/2025 at 20:28, Ricky81 ha scritto:

nessuno ne sa nulla? @stefano_mbp @Gerardo61 @Luca44

Risposto io.

[AudioLover]

@TetsuSan non riesci a gestire i file locali con l'app HEos?