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Thread: Audio Quality

  1. #1
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    Audio Quality

    What are your experience with going from a headunit to a carpc playing mp3s? Based on the quality of the sound I mean. I'm going from playing mp3 cds in an alpine 7995 to a carpc running through the alpine headunit's AUX input. I didn't think about it until I just got sound working on my Epia MII 10000 running linux. Right now it's setup in the house through a Sony LBT-D390 stereo and for some reason the mp3s don't sound as clean as the mp3 cds in my car. Do you think this could just be my stereo? Granted they are not the exact same mp3 files (I havn't taken the CDs out of my car to test yet) but I ripped these at 192kbps (in music match 8) and the ones in my car are probably 75% 128kbps and 25% 192kbps (ripped from various programs).

    I have the PC volume at 75% and my stereo volume at 22 out of 30, just for normal volume. Even then the music doesn't sound very clean.

    I'm stil going to mess around and see if I can fix it, but how many of you ran into this? and did you get it fixed or does it not bother you?

  2. #2
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    I dont,, have car experience, but my laptop is connected to my high end audio setup (Linn Classik) wih the headphone jack into RCA into the aux input of the stereo and it's total *****.

    It plays not even half as loud.

    IMO you'll have to get a sound card with SPDIF and then send digital signal to your amp.

    Etienne

  3. #3
    Maximum Bitrate DjBac's Avatar
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    if u have analog outputs then use line drivers!!!!
    With these the amps won't distort in order to get out some music, so the quality will be better and the volume much higher!!!

    As MrSpace said the best way to connect your PC to an amp is SPDIF!!!

    U can do it in the car with digital processors... LIke Apline PXA-H900 (the best one in my opinion), PXA-H700 and other brands!!!


    Hope this helps!!!

  4. #4
    Maximum Bitrate sfay93's Avatar
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    I have my PC connected to my 5 channel amp through the line out jack. It sounds great and goes much louder than I could ever want. have you checked where the volume controls are for master and wave? I can't even set mine all of the way. Sound is great as well.
    7" Lilli TS, Soyo K7VME, Semperon 2200, 160GB Maxtor, 512mb PC3200, Deluo GPS, Panasonic Slim DVD/CD RW, Linksys WMP545G , Opus 150w, XMDirect, XP Pro, FP, IG [XXXXXXXXX-] 90%
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  5. #5
    Maximum Bitrate DjBac's Avatar
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    The line out on most soundcards do not supply much power (current)!!
    Try a line driver and you will have an even better setup!!!!

  6. #6
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    Is it safe to run a line driver into my home stereo or my car's headunit? I'm not going direct to the amps when I put this in my car. I will be going to the headunit so I can use that for radio and a volume control knob for the carpc.

  7. #7
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    This is a godsend for car audio...indash linedriver and EQ (and sub level control!):

    http://www.audiocontrol.com/MobileAu...ash/index.html

    It can be had on Ebay for just over $100 used.

    The three.1 is what I have and is what you would want if you were running your carputer with NO head unit. The four.1 has an AUX input and would be ideal for running your carputer WITH a headunit.

  8. #8
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    ive noticed that mp3's even burned to cd format sound like **** in my car. ive never found a suitable replacement for recordings straight off the shelf.

  9. #9
    pip
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    FLAC and APE and other 'lossless' formats are indistinguishable from a CD, as long as it was ripped well to begin with. However there may be a difference in sound quality between the CD in your head unit and the sound via the line-in...but you can hardly blame that on the coding

  10. #10
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    is there widespread support for these formats? all I see online is mp3....

    and then theres always the question of how much space tdo these formats take up, i may as well have waves if they take up the same space....

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