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Convert wav to save space

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  • G_G
    • Sep 2006
    • 7

    #16
    Re: Convert wav to save space

    Hi Christina,
    Tried that and was told " your computer already has ..."
    Thanks for thinking of that though, it's much appreciated.:smile2:

    GG

    Comment

    • ChristinaS
      dBpoweramp Guru
      • Apr 2004
      • 4097

      #17
      Re: Convert wav to save space

      Ok, start from the start.

      What are the bitrate and channels of your mp3 file? The duration?

      When converting to wav - are you selecting Compressed and clkcing Change Format? and then what did you select?

      Many formats are proposed in the drop down list. Pick MPEG layer III wav and go with that. Lots of compression levels are available too.

      If you don't have MPEG Layer III wav - see the link in my signaure.

      Comment

      • G_G
        • Sep 2006
        • 7

        #18
        Re: Convert wav to save space

        Hi,
        A rough note of some of the settings and the resulting file sizes;
        Track used for conversion;
        Biggest Mistake ~ Rolling Stones
        Size 3851kb
        Length 4 min 06 sec
        ~~~~~~~~~~~~~

        12,000HZ
        18kbs abr
        144kb/s

        Resulting File = 3,600kbs
        (all in MP3 setting / Stereo/ compressed selected)

        Tried different setting just to see if I was doing something wrong as above were settings recommended by Yahoo group manager and used successfully for months before computer crash.
        new settings = ;
        16,000 Hz
        130kbpsABR (Stereo)
        16 kb/s
        Resulting File =3,206 kb

        Then
        12,000Hz
        18Kbs
        MONO
        resulting File !!! = 3,164 !!!!
        Running Windows 98 SE
        (could this be 'problem' re reinstalling DBPowerAmp, which is possible Up-Grade on my old version, and which may not be quite as 'suitable' / compatible with for Win_98 ?)
        just wondering ?

        If so is there away I could D/L Older version of DBPowerAmp ... one that Might Suit my Windows Better as we're Not ever going over to XP again ... (been there, done that, not doing that again ... LOL)
        (also running oldish computer with 'elderly sound card/video card)

        GG

        Comment

        • ChristinaS
          dBpoweramp Guru
          • Apr 2004
          • 4097

          #19
          Re: Convert wav to save space

          Your mp3 file that is:
          Size 3851kb
          Length 4 min 06 sec

          This must be an mp3 @ 96kbps give or take.

          If you want to convert it to a smaller size you need to pick a lower bitrate. Leave frequency alone, it will nto affect the file size.

          The file size is proportional to the bitrate.

          If what you want to have in the end is 750K - then you need to compress the file to 1/5 - so 1/5 of the bitrate. 20kbps ... not available for mp3, 32 is lowest. You can get 20kbps if you use a wma format - and the bonus is better audio quality.

          Going down to mono from stereo will halve the file size.

          Instead of converting to mp3 you can try to convert to compressed wav. There you will have a lot of diffferent options, pick MPEG Layer III Wav, and then pick various compression settings from the available list.

          You say you didn't need to use the compatibility update - I would install it just the same, because it may not have "taken".

          You are not forgetting to reboot after installing things?

          Comment

          • G_G
            • Sep 2006
            • 7

            #20
            Re: Convert wav to save space

            Originally posted by ChristinaS
            Your mp3 file that is:
            Size 3851kb
            Length 4 min 06 sec

            This must be an mp3 @ 96kbps give or take.

            [COLOR=Indigo]KBPS is 128 [/COLOR]

            If you want to convert it to a smaller size you need to pick a lower bitrate. Leave frequency alone, it will nto affect the file size.

            The file size is proportional to the bitrate.
            [COLOR=Indigo]Right, I got that ... now[/COLOR]
            :blush:
            If what you want to have in the end is 750K - then you need to compress the file to 1/5 - so 1/5 of the bitrate. 20kbps ... not available for mp3, 32 is lowest. ...
            [COLOR=Indigo]Could that be where I'm going wrong?
            I Need to have a Wav file as don't think my email groups acept WMA
            [/COLOR]

            Going down to mono from stereo will halve the file size.

            Instead of converting to mp3 you can try to convert to compressed wav. There you will have a lot of diffferent options, pick MPEG Layer III Wav, and then pick various compression settings from the available list.
            [COLOR=Indigo]That's exactly what I have been doing ... to the letter ... not trying to convert to MP3 ... trying to convert From MP3 ... to ... wav[/COLOR]

            You say you didn't need to use the compatibility update - I would install it just the same, because it may not have "taken".

            You are not forgetting to reboot after installing things?
            [COLOR=Indigo]No, OH is a 'computer professional' (LOL) and has me well trained in such things
            LOL
            [/COLOR]

            May well try reinstalling yet again but what I was hoping for here was some advice re settings and it looks like I got some 'cause I always thought it was the combined settings that make a difference, so have Learned something significant ...
            Thanks to all for all the good advice

            GG
            Last edited by G_G; September 22, 2006, 08:28 AM.

            Comment

            • G_G
              • Sep 2006
              • 7

              #21
              Re: Convert wav to save space

              Just did a convert at the lowest possible setting (well almost)

              MPEG Layer-3,16 kBit/s, 8.000 Hz, Mono
              which is Probably not even listen-able to (?)
              and got a file of 1.69MB !
              So my Conversion software must be faulty,yes?

              Off to reinstall and stop the pain
              LOL

              GG

              Comment

              • ChristinaS
                dBpoweramp Guru
                • Apr 2004
                • 4097

                #22
                Re: Convert wav to save space

                Originally posted by G_G
                Just did a convert at the lowest possible setting (well almost)

                MPEG Layer-3,16 kBit/s, 8.000 Hz, Mono
                which is Probably not even listen-able to (?)
                and got a file of 1.69MB !
                So my Conversion software must be faulty,yes?

                Off to reinstall and stop the pain
                LOL

                GG
                Try 8.000KHz, 8 bit mono - 7kb/s .

                Comment

                • stibi
                  • Feb 2004
                  • 29

                  #23
                  Re: Convert wav to save space

                  Originally posted by ChristinaS
                  The thing is with audio files just stating the file size is not sufficient. You have to state the bitrate, duration, channels.

                  You will get a proportionally smaller file size if you reduce the bitrate and/or the channels. No other way really.
                  Hi ChristinaS,

                  Recently, all of a sudden, everytime after converting with dBpoweramp an Mp3 file (or any other format, including a "regular" wav file (i.e.Windows PCM)) when I am trying to listen to the so converted file it plays so extremely fast that I hear only some strange tunes. I reinstalled dBpoweramp, however it didn't help. Meanwhile, unless you have some idea how to solve that problem, I wanted to use your advise and to convert with dBpoweramp an MP3 into Wav-MP3 file. Now, You said one has to state the bitrate, duration, channels. I have changed the bitrate, clicked on the "Advanced" tab and choosed the lowest duration (8khz). However, I don't know which of the 5 channel possibilities (shown there) to choose.
                  I shall be gratefull for your advise as to which of the the 5 channels to choose, as well as how to solve my above mentioned problem with converting to compressed wav (since converting into the compressed wav seemsto me for most cases preferable).
                  Thanks in advance
                  stibi
                  Last edited by stibi; June 24, 2007, 01:41 PM.

                  Comment

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