Thread: Firmware 8.1

Bug fixes on the 8.1.0 Firmware version:
•Fix of potential issue with certain SAM V2 profiles at high level
•Fix of potential phono EQ issue of companion units in some ‘dual-mono’ configurations
•Fix of potential preamplified output issue in variable volume mode configurations
•Fix of potential DPM issue in some configurations
•Tone control now fully compatible with SAM V2
•ICM mode can now be independently turned on/off on each input

MAT®, MINIMAL ARITHMETIC TRANSFORM: DSD ENGINE

DSD64 (DSD 1x) is now supported on USB and every high speed PCM digital input, through DoP v1.0 (DSD over PCM).

I'm still confused by this...is usb native dsd and all others are DoP. Or is there still some conversion (arithmetic transformation) on the USB as well.

I read the firmware guide and this is what it says...

"In the « computer audio » era, it has now become much more accessible. Consideredby many industry leaders as the most analog sounding of digital formats, DSD hasgained a solid reputation over time and has quickly become a reference format forthe most demanding of audiophiles.The conventional PCM format of audio CDs encodes music on 16 bits (65536 levels),44100 times per second, whereas DSD format encodes music on 1 bit (usingonly 2 levels: 0 or 1) but much more frequently: 2.8224 million times per second(DSD64 or DSD 1x), 5.6448 million times per second (DSD128 or DSD 2x) andeven 11.2896 times per second (DSD256 or DSD 4x). The raw bitrate of an audioDSD stream is higher than that of an audio CD and equivalent to a High DefinitionPCM stream.

Thus, from a bandwidth point of view, it is technically feasible to carry an audio DSDstream over a High Definition capable PCM digital input. The entire Expert range isnow compatible with the DoP protocol (DSD over PCM). This new feature is availablethrough the USB input but also on the digital XLR input (AES/EBU), the TOSLINKoptical input and all coaxial digital inputs (S/PDIF). A completely unique feature.MAT® DSD Core technology converts the DSD format into Expert internal nativePCM 40 bits / 384 kHz format thanks to an optimized algorithm, limiting theamount of computational operations on the audio stream. Using only 15 bit perfectadditions (no multiplication, no storage), the MAT® algorithm performs a 128 taps,linear phase FIR (Finite Impulse Response) digital filter ensuring the conversion of theDSD format into internal native PCM format with truly outstanding performances."

New features available onthe 8.1 release:

Addition of a menu allowing the user to change on the fly the option assigned to Expert’s Remote buttons. You can now enjoy easy access to the many options available on your Remote at the tip of your fingers. Expert’s configurability reaches new heights.

The ICM mode can now be independently turned on/off on each input. It ist he best way to enjoy your movies with clarity and detail for an even better user experience.

Originally Posted by Dewster

New firmware 8.1 just released, I'll have a crack at it when I get home tonight..

I DL then copy files to SD with a new config. Restart Dev 200 and display says to redo SD and loads FACTORY CONFIG.
Go to pc, display card files, right click on a file to delete it to start over... and I don't get a Delete choice in the drop down box.
What's going on?

Originally Posted by Smile

I DL then copy files to SD with a new config. Restart Dev 200 and display says to redo SD and loads FACTORY CONFIG.
Go to pc, display card files, right click on a file to delete it to start over... and I don't get a Delete choice in the drop down box.
What's going on?

Two different things, first you load the new 8.1 firmware, then you need to load a new config file.

For the firmware you need to put the 17 files on the SD, for the config files you load the dp_cfg file.

If you can't delete the files check to see if the card is locked or try reformating it.

Originally Posted by Myles B. Astor

They can call it DSD but it ain't DSD.

I posted about this a month ago, see:

http://audioshark.org/devialet-182/f...401-page3.html

Post #24.

BTW, the Aesthetix Pandora/Romulus DACs use the same DAC chip as Devialet, and they do native DSD.

Originally Posted by mauidan

Two different things, first you load the new 8.1 firmware, then you need to load a new config file.

For the firmware you need to put the 17 files on the SD, for the config files you load the dp_cfg file.

If you can't delete the files check to see if the card is locked or try reformating it.

LOCKED CARD, doh.

I'll 2 step it, update then new config.

Tried to update configuration with both a prior config and then with a new one. Screen tells me to Redo config,
Old SAM Config File.
I insert an SD containing only the 8.1 files, restart Dev, and it starts, ignoring the files.
Factory Setting.
Thoughts?

Originally Posted by Loop4fun

Make sure you have 17 files and that they are not in a folder. You can deleted the manual which is a PDF (leaving only the 17 files). Unplug your unit, insert the card, plug in the unit, turn on if needed.

That worked on both counts. Thx.