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[codec] DSD Decoder R3

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  • Spoon
    Administrator
    • Apr 2002
    • 44182

    [codec] DSD Decoder R3

    Changes:

    Fixed Issue where DoP encoding could add erroneous data
    Fixed issue where could give slight blip at end of track (where end chunk is encoded as zeros)

    <released>
    Last edited by Spoon; July 29, 2016, 02:54 PM.
    Spoon
    www.dbpoweramp.com
  • Arnold
    • Mar 2016
    • 26

    #2
    Re: DSD Decoder R3

    Hello Spoon,
    Few questions about your DSD codec.

    - When converting a dff/dsf file to wav (or flac) is there a kind of dithering applied? If so, what kind?

    - In advanced options it says 96kHz is recommended?
    I understand in regard to ultra sonic noise.
    But it was my understanding that 88.2kHz is to be prefered because of the whole integer dividing of the original 2.8224 Mhz signal?
    Why do you recommend 96kHz?

    Regards,
    Arnold.

    Comment

    • Spoon
      Administrator
      • Apr 2002
      • 44182

      #3
      Re: DSD Decoder R3

      No dithering as the destination is 24 bit, and dithering 24 bit has little sense.

      The transformation is not a simple dividing, resampling does not work this way, so 88 would not give better results.
      Spoon
      www.dbpoweramp.com

      Comment

      • Arnold
        • Mar 2016
        • 26

        #4
        Re: DSD Decoder R3

        Thanks.

        When doing a dff to flac conversion with DSD R2 and DSD R3, the rms and peak values from foobar's dynamic range meter are slightly different.
        Did something change in the conversion from R2 to R3?

        Comment

        • Spoon
          Administrator
          • Apr 2002
          • 44182

          #5
          Re: DSD Decoder R3

          Different compilers can give slightly different floating point results.
          Spoon
          www.dbpoweramp.com

          Comment

          • Arnold
            • Mar 2016
            • 26

            #6
            Re: DSD Decoder R3

            Hi Spoon,

            Does this mean the compiler is different in version R2 and version R3?

            I noticed that the progress bar in version R3 seems to move very slow. The indication shows that the converion takes more then 20 minutes and the progress bar moves slowly.
            Then suddenly the conversion is finished in about 6-7 minutes.
            In version R2 the progress bar moves more even and estimated conversion time seems more accurate.

            Comment

            • Spoon
              Administrator
              • Apr 2002
              • 44182

              #7
              Re: DSD Decoder R3

              Yes different.
              Spoon
              www.dbpoweramp.com

              Comment

              • Arnold
                • Mar 2016
                • 26

                #8
                Re: DSD Decoder R3

                Ok, thanks. That wasn't mentioned in the changelog.
                For what it's worth, I like this one sonically very much.

                Comment

                • Trev_L
                  • Dec 2015
                  • 12

                  #9
                  Re: DSD Decoder R3

                  Originally posted by Arnold
                  Hi Spoon,

                  Does this mean the compiler is different in version R2 and version R3?

                  I noticed that the progress bar in version R3 seems to move very slow. The indication shows that the converion takes more then 20 minutes and the progress bar moves slowly.
                  Then suddenly the conversion is finished in about 6-7 minutes.
                  In version R2 the progress bar moves more even and estimated conversion time seems more accurate.

                  I was going to ask a similar question about the progress bar. When I do a conversion (ddf to flac 24/88.2) The progress bar for each file will only go to about 25% then its finished. The converted files do play fine and all, but its just a little confusing

                  Comment

                  • Spoon
                    Administrator
                    • Apr 2002
                    • 44182

                    #10
                    Re: DSD Decoder R3

                    Noted
                    Spoon
                    www.dbpoweramp.com

                    Comment

                    • chertk
                      • May 2016
                      • 1

                      #11
                      Re: DSD Decoder R3

                      Hi Spoon
                      after dsd to flac conversion at the end of the some tracks there is very audible burst (same was with DSD Decoder R2).
                      Here is snapshot from adobe audition:
                      Click image for larger version

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                      Comment

                      • Spoon
                        Administrator
                        • Apr 2002
                        • 44182

                        #12
                        Re: DSD Decoder R3

                        you can upload a file to dropbox and personal message me a link?
                        Spoon
                        www.dbpoweramp.com

                        Comment

                        • Spoon
                          Administrator
                          • Apr 2002
                          • 44182

                          #13
                          Re: DSD Decoder R3

                          Updated 1st June

                          Fixed issue where could give slight blip at end of track (where end chunk is encoded as zeros)
                          % bar fixed also
                          Spoon
                          www.dbpoweramp.com

                          Comment

                          • Arnold
                            • Mar 2016
                            • 26

                            #14
                            Re: DSD Decoder R3

                            Thank you. Can confirm it's working good now with correct working progression bar.
                            Soundwise this codec is very good, the best I've heard so far. Thank you for this one.

                            Comment

                            • simes_pep
                              dBpoweramp Enthusiast
                              • Dec 2013
                              • 290

                              #15
                              Re: DSD Decoder R3

                              So, quick question, if you have DoP files, where the DSD has been encoded in the PCM frames and presented as FLAC files, is there a method of extracting the DSD which can be saved in a DSF file format?

                              Thanks,
                              Simon.

                              Comment

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