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Unable to convert large files from MP3 to Wave

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  • xoas
    dBpoweramp Guru

    • Apr 2002
    • 2662

    #16
    Re: Unable to convert large files from MP3 to Wave

    If the test conversion is failing at low priority, this is not a good sign. I cannot promise that the file size is not an issue but I have created a few more very large mp3 files (largest was 150 MB) and converted them to wav without any problem. Since I had to rip to mp3 at 320 kbs to get the largest file size possible my largest wav file was just shy of 700 MB. This is still short of your anticipated file size for your wav file but I am unconvinced that file size is the issue here.

    The possibility is that these files might either be corrupt or that they might be copy protected. Can you play your very large mp3 files? Do you know their source? Could they be copy protected? Can you tell us what programs will play these files? Do you know what program might have created these files?

    Comment

    • tester dude

      • Nov 2004
      • 8

      #17
      Re: Unable to convert large files from MP3 to Wave

      OK where to start? The problem exists on large files encoded at 128, your 700 MBytes is the regular CD (80Mins). They can be played using 'Winamp' , 'Media player10' and 'Audacity' the last being the program I use for parsing these files. If the files were copy protected surely dBpower should tell me? If not, how would I know? The original files were encoded using FhG (not my choice). The fact that the program starts to decode the file (even telling me the time remaining) and then gives up is just plain weird.

      Comment

      • xoas
        dBpoweramp Guru

        • Apr 2002
        • 2662

        #18
        Re: Unable to convert large files from MP3 to Wave

        dB does not necessarily recognize all types of copy protected files if you mean that it specifies in the error message that the file is copy protected and that it cannot convert the file. It will do this for encrypted wma files pretty reliably. I think in many other cases you might just get an error message. Many, if not most, pay for download services copy-protect the files you download, so if these very large files have been downloaded from such a source, you might want to confirm with the download source if the files are copy-protected or not.

        I guess your best bet, unless the files are, in fact copy protected or corrupt, is to try what you were doing-to break the large files into smaller pieces. The fact you can play these files strongly suggests that corruption is not an issue.

        So let us know how you make out with splitting one of these very large mp3 files. If that works, it should rule out copy-protection as an issue. In that case I still wonder whether there may be other settings you are using on your system that might interfere with the handling of very large files, but I'll have to think about that issue for a while.

        Good luck and best wishes,
        Bill mikkelsen

        Comment

        • tester dude

          • Nov 2004
          • 8

          #19
          Re: Unable to convert large files from MP3 to Wave

          Bill,
          As stated earlier, I can reliably use these files with Audacity and in fact I just finished dicing one of these large files and at the same time converting them to Wave tracks. I even (for the hell of it) converted the whole (large) file over to see if Audacity could do the conversion and it worked fine. This is not a killer for me, the reason I went with dBpower was its simplicity and I have not been disappointed. I convert mp3's on a daily basis and dBpower is fast and easy.

          Comment

          • Spoon
            Administrator
            • Apr 2002
            • 44471

            #20
            Re: Unable to convert large files from MP3 to Wave

            It points to the mp3 decoder not being able to read such files, if there is such a demand in the future all codecs would be looked at to extend them past the 4GB (or even 1GB for mp3 uncompressed) limit.
            Spoon
            www.dbpoweramp.com

            Comment

            • palmerac

              • Feb 2007
              • 10

              #21
              Re: Unable to convert large files from MP3 to Wave

              I realize this is an old thread, but I'm having similar issues and thought this thread might be worth reviving.

              I have some large RealAudio files that are between 200 and 300 MB, encoded at 176 kbps -- so the resulting audio is a few hours long. I want to convert them to WAV or AAC or a format that is playable on an iPod.

              Can you explain the 4 GB theoretical limit more precisely? Isn't this just a limitation of the FAT file system?

              Will the new version (R12?) be able to handle conversions of larger files?

              Comment

              • LtData
                dBpoweramp Guru

                • May 2004
                • 8288

                #22
                Re: Unable to convert large files from MP3 to Wave

                From what I can see, the 4GB limit is in the mp3 encoder for a reason that I am not aware of. Regardless, you lose nothing by trying to use dMC on your files. However, there is not a Real Audio codec for r12 currently. Check back in a week or two to see if it has been released yet.

                Comment

                • palmerac

                  • Feb 2007
                  • 10

                  #23
                  Re: Unable to convert large RealAudio files to Wave

                  After hours of processing, the error message that always pops up is:

                  Error whilst running DSP effect, lack of disk space?
                  Temp file 'G:\dbTEMP\DMC.Tmp'


                  There is PLENTY of free space on that drive (about 100 GB free). Also, I have no idea why dMC is trying to run DSP effects as I don't recall specifying that any effects should be applied.

                  Comment

                  • LtData
                    dBpoweramp Guru

                    • May 2004
                    • 8288

                    #24
                    Re: Unable to convert large RealAudio files to Wave

                    On the window where you select your codecs, there is a "DSP" button below the output destination. It doesn't look like a button, but if you mouse over it you can see that it is.

                    Comment

                    • palmerac

                      • Feb 2007
                      • 10

                      #25
                      Re: Unable to convert large RealAudio files to Wave

                      Duhhhhhhh. THANKS! I had completely forgotten about the DSP button -- as well as my earlier configuration of a DSP effect (normalization)!

                      Now that I have cleared the DSP effects, I am able to convert a 375 MB .rm file to .wav without any problems. I really appreciate your assistance.

                      So running a DSP effect on a huge file requires a ton of RAM or something? I have 1 GB, but that may not be enough under Win2000. HD space is not the problem -- I have hundreds of free gigabytes.

                      Comment

                      • LtData
                        dBpoweramp Guru

                        • May 2004
                        • 8288

                        #26
                        Re: Unable to convert large RealAudio files to Wave

                        I think that in order to run DSP effects, the file has to be converted to WAV or something and that is hitting the 4GB limit that dMC can work with. Its not RAM or HDD space, it is a limitation of 32-bit programs.

                        Comment

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