Page 2 of 4 FirstFirst 1234 LastLast
Results 11 to 20 of 32

Thread: Audio Quality

  1. #11
    Maximum Bitrate
    Join Date
    Jul 2004
    Posts
    574
    FLAC, APE, and Shorten "lossless" formats take up approx 50% of the original WAV file size.

  2. #12
    Constant Bitrate
    Join Date
    Jul 2003
    Location
    So. Cal.
    Posts
    183
    I've thought on this a lot recently. My altima came with stock speakers that produced a lot of bass and were very clear. People kept asking me what kind of sub I was running. When i switched to my pc, all that bass went away. the sound was slightly less clear, but that never bothered me. Boosting the bass thru software didn't seem to help at all. I think that because I'm using the onboard sound I'm not getting as much bass as I used to. I'm concidering purchasing one of the expensive sound cards with the little knob connecter things that I'll fab into the console.

    Has anyone else experienced a drop in base with onboard sound processor? Did a better card fix this?

  3. #13
    Constant Bitrate
    Join Date
    Jun 2004
    Posts
    165
    - I had a stock HU and used speaker level inputs to my amps, the sound was decent.
    - I replaced my stock HU with a carPC using an M10000 mobo and the onboard sound card, there was a major improvement in the sound quality, sounded even better than some of my co workers with aftermarket setups.
    - Then I purchased an Audigy2 soundcard and now have an audio orgasm every time I get into my car.
    For alot of people, the stock soundcard on the mobo will probably do the trick.

  4. #14
    Low Bitrate
    Join Date
    Aug 2002
    Posts
    75
    The only installed car-pc's I've used just ran old MPXPLAY and a Soundblaster card. (I know, I'm ancient. But for just mp3's, it never fails.) These setups always had good SQ. I then tried to use a laptop and it's headphone jack and it didn't sound good at all. Tried again with another pc with on-board sound. Sounded better than the laptop, but still not as good as the old Mpxplay and Soundblaster card.

    So far, I've preferred using a dedicated sound card or external device as opposed to the on-board sound outputs.

  5. #15
    Maximum Bitrate starfox's Avatar
    Join Date
    May 2002
    Location
    Australia
    Posts
    451
    Yeah, notebook / laptop soundcards are usually quite noisy. Due to space constraints on the PCBs, signal integrity doesn't take priority.. Same with onboard sound, the most important factor is to minimise cost.

    welthqa: you're not using some sort of group loop isolator are you? do you have anything connected in between the PC and your head unit / amplifier?

  6. #16
    Variable Bitrate danon's Avatar
    Join Date
    Oct 2003
    Location
    Queensland, Australia
    Posts
    370
    Quote Originally Posted by Hexerei
    What are your experience with going from a headunit to a carpc playing mp3s? Based on the quality of the sound I mean...
    well my quick answer is it's great! i sold my headunit almost a year now as i didn't see the need for it anymore. the technique for a successful sound experience in a car is a proper crossover to distribute different frequencies to each drivers/speakers (high, mid, subs, etc.) a tweeter in a good position, actually all speakers should be in good position so before you do your setup, spend time theorizing how sound would bounce if you do this or that (too much bouncing is not good), how would the tweeter loose it's crisp if it's too far, if you have a sub make sure it's as airtight as possible. if you want to use your existing car speaker (like i did) try to see how you can compensate. don't expect that if your newly burned mp3 sounds good at home doesn't exactly mean similar experience in car, even a good set of home speakers who does wonders at home doesn't do the same. a car is a totally different environment and therefore needs a different approach to produce the same clarity. my audio setup is not expensive, but because of proper planning, and setup a lot of people think i do 'cause it's just sounds too good for a barebones. listen carefully to other cars that you think has a good audio, listen how different frequencies separate itself from each other and see how you can produce it one by one in your setup. listen to your car's needs and it will reward you in return. i also experienced that an original cd burned to mp3 at 128bit is far better that a 192bit mp3 downloaded on the net. having said that, if you can access a sound processor software and have a time to learn, you can convert high bit but lousy mp3 into a low bit high clarity mp3.



    danon
    [....99.9%]
    [HW] 566eMHz/128mb/6gb, FlyVideo3k, RandMgps, M1-ATX, 7" Lilliput, VGA2AVadptrFor2ndVideo, 4CH/100rms, 10"Sub, 40AhDeepCycleTank
    [....99.8%]
    [SW] XP/MMC/FP:D3,FlyTV/AxifeFM,CarMM?
    [Working on] puttingBackEvrythg.

  7. #17
    Low Bitrate TommieG's Avatar
    Join Date
    Mar 2004
    Location
    Norway
    Posts
    106
    Playing MP3's on my carputer, through a Creative MP3+ external soundcard to the line-in of my HU sounds a lot better than playing the same MP3's burnt to MP3-CD's on the same Blaupunkt Los Angeles MP3-CD headunit. I guess the codec used in the headunit isn't up to standards.
    In fact I'm quite amazed about the sound quality from the carputer. It exceeds my expectations.
    The bitrate is however crucial. 128 kbps does not sound too good on my system, but with 224 kbps I have a hard time finding any difference from playing the original CD on the HU.

    Tom
    VIA EPIA M9000/120 GB/Xenarc 700TSV/Opus 90W DC-DC
    Haicom GPS/3Com 11g Wi-Fi/D-Link BT
    WinXP/myHTPC/InfoMap Navigator Eu/PhoneControl w/T68i
    Blaupunkt HU & speakers/Velocity active subs/Alpine amps

    Progress: removed while waiting for nano-itx

  8. #18
    Maximum Bitrate
    Join Date
    Jun 2004
    Location
    Bay Area, California
    Posts
    654
    Quote Originally Posted by prerunnerv6
    I then tried to use a laptop and it's headphone jack and it didn't sound good at all. Tried again with another pc with on-board sound.

    Quote Originally Posted by starfox
    Yeah, notebook / laptop soundcards are usually quite noisy. Due to space constraints on the PCBs, signal integrity doesn't take priority..
    okay, heres the skinny on the laptop headphone jack thing as per my experience not 2 hours ago:

    I first tried plugging in the headphone jack out directly to the inputs on my amplifiers. not too good! very grainy, the gain was terrible, the bass was overpowering, there was massive amounts of static, the quality was all in all very low.

    about three hours ago I purchased a PAC (too cheap to do pioneer) IP-bus RCA converter. for those who dont know, pioneer does not run AUX inputs for the preouts on their radios. to achieve this, they made an external device that plugs into their CD changer controls, and has RCA inputs. They even make a model (pioneer, not PAC) that lets you keep yoru CD changer AND run AUX inputs!

    anyways, its teh same deal. headphone out on the laptop, into the IP inputs on my pioneer. what a world of difference! smells like teen spirit gained the kickdrum clarity back, the grain was gone, the general hiss dissapeared, cymbals lost their mud, everything was crisper, clearer, cleaner.

    so they definitely have plenty of potential! I just dont think it can be easily done with a phono RCA converter, an amp, and nothing else.

  9. #19
    Constant Bitrate
    Join Date
    Jul 2003
    Location
    So. Cal.
    Posts
    183
    Quote Originally Posted by starfox
    welthqa: you're not using some sort of group loop isolator are you? do you have anything connected in between the PC and your head unit / amplifier?
    no, nothing. Link me up if you think something could help. my biggest complaint is the lack of bass.

  10. #20
    Maximum Bitrate
    Join Date
    Jun 2004
    Location
    Bay Area, California
    Posts
    654
    how is your system set up right now? is it computer - phonoRCA converter - FM modulator - car radio - stock car system ?

    how is it different than your car fully stock?

Page 2 of 4 FirstFirst 1234 LastLast

Similar Threads

  1. OEM Navigation Connectors
    By Mr Castulucci in forum General Hardware Discussion
    Replies: 15
    Last Post: 07-20-2010, 05:25 PM
  2. Replies: 19
    Last Post: 12-04-2004, 05:37 PM
  3. Hard audio quality problem: Noise / Ground loop?
    By Burat in forum General Hardware Discussion
    Replies: 14
    Last Post: 09-09-2004, 06:08 AM
  4. attn fv24 owners audio quality ?
    By etrik in forum General Hardware Discussion
    Replies: 4
    Last Post: 01-05-2004, 09:38 AM
  5. Complicated Audio Quality Problem
    By StangBoyCIC in forum General Hardware Discussion
    Replies: 14
    Last Post: 12-17-2003, 03:05 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •