Rockbox Development > Feature Ideas

deemphasis

<< < (2/2)

bertox:
I want this feature too.

Here is the sheet of the Portal Player chip of my Sansa e250:

http://web.archive.org/web/20060707072303/http://www.portalplayer.com/products/documents/5024_Brief_Mar05.pdf

He say that can do DeEmphasis in the Dac.

Maybe Rockbox just make the command to this happen..

:)

saratoga:

--- Quote from: bertox on June 13, 2010, 03:46:22 AM ---He say that can do DeEmphasis in the Dac.

--- End quote ---

The DAC datasheet makes no mention of a filter for it, so its probably implemented in software.  Either way, its still going to be much easier to just add deemphasis to the mp3 decoder.

bertox:

--- Quote ---The DAC datasheet makes no mention of a filter for it, so its probably implemented in software.  Either way, its still going to be much easier to just add deemphasis to the mp3 decoder.
--- End quote ---

Are you sure? A lot of DACs do DeEmph inside..

..and maybe it is better quality than one in the Flac decoder...  :-[

saratoga:
You're welcome to try and find one, but its not in the datasheet and the DAC is so simple it doesn't provide any programmable filtering at all, so I doubt you're going to have much luck.  FWIW I don't think our flac decoder (or any Rockbox decoder) does emphasis.

bertox:
Ok.  :)


--- Quote ---FWIW I don't think our flac decoder (or any Rockbox decoder) does emphasis.
--- End quote ---

you misunderstand me.., i just referring to the posibility of adding DeEmph to de decoder like you say.., it's just you say'd MP3.., and i say FLAC.., cause' my albums are in FLAC and have the Flag in the CUE file.., and i want it for Flac not for MP3 too..  :P

Navigation

[0] Message Index

[*] Previous page