Page 18 of 46 FirstFirst ... 8910111213141516171819202122232425262728 ... LastLast
Results 171 to 180 of 458

Thread: Software options for Tuning

  1. #171
    Car Audio Moderator durwood's Avatar
    Join Date
    Sep 2006
    Location
    Chicagoland (St. Charles,IL)
    Posts
    2,028
    Quote Originally Posted by Dragonknell911 View Post
    Don't worry we know we can't make the decision for you. We just want to make sure that you know the risks

    It seems like you know them, and have addressed them as appropriately as possible.
    I was an installer for ` 2 years for Tweeter. You have to learn what to do and what not to do real quick or you always end up fixing your own work...or others.

  2. #172
    MySQL Error scott_fx's Avatar
    Join Date
    Dec 2004
    Location
    Los Angeles Ca
    Posts
    3,998
    something i found interesting:


    http://www.adriansrojakpot.com/Speed..._Guide_02d.htm

    not sure if our boards have this option in the bios but (from linked page):
    Spread Spectrum

    Options : Enabled, Disabled, 0.25%, 0.5%, Smart Clock

    When the motherboard's clock generator pulses, the extreme values (spikes) of the pulses creates EMI (Electromagnetic Interference). The Spead Spectrum function reduces the EMI generated by modulating the pulses so that the spikes of the pulses are reduced to flatter curves. It does so by varying the frequency so that it doesn't use any particular frequency for more than a moment. This reduces interference problems with other electronics in the area.

    However, while enabling Spread Spectrum decreases EMI, system stability and performance may be slightly compromised. This may be especially true with timing-critical devices like clock-sensitive SCSI devices.

    Some BIOSes offer a Smart Clock option. Instead of modulating the frequency of the pulses over time, Smart Clock turns off the AGP, PCI and SDRAM clock signals when not in use. Thus, EMI can be reduced without compromising system stability. As a bonus, using Smart Clock can also help reduce power consumption.

    If you do not have any EMI problem, leave the setting at Disabled for optimal system stability and performance. But if you are plagued by EMI, use the Smart Clock setting if possible and settle for Enabled or one of the two other values if Smart Clock is not available. The percentage values denote the amount of jitter (variation) that the BIOS performs on the clock frequency. So, a lower value (0.25%) is comparatively better for system stability while a higher value (0.5%) is better for EMI reduction.

    Remember to disable Spread Spectrum if you are overclocking because even a 0.25% jitter can introduce a temporary boost in clockspeed of 25MHz (with a 1GHz CPU) which may just cause your overclocked processor to lock up. Or at least use the Smart Clock setting as that doesn't involve any modulation of the frequency.
    New System in progress:
    M10k
    Phaze TD1500 ~> Dynaudio MD130
    Phaze TD1500 ~> Seas g18rnx/p
    Zapco Ref 500.1 ~ 12" tc-9
    Behringer DCX2496 ~ Envision Electronics psu
    Transflective Xenarc

    My Car Pc Install
    My Boat Pc worklog

  3. #173
    Low Bitrate
    Join Date
    Nov 2004
    Posts
    58
    Quote Originally Posted by RedGTiVR6 View Post
    Underseat installs really worry me. There's SO many things that can get under there...no matter how careful you are....
    I wouldn't worry about it too much Jan. If you want build a cover that attaches to your seat rails so when the seats are all the way back nothing can fall under the seat. I did this for cosmetic reasons when I extended the seat rails in my car about 7". At that point you could even put a small removeable plexi window something like that. You can also put a panel behind the computer so toes and whatnot from someone sitting in the backseat don't bother anything when the front seat is all the way forward. Then just insulate the case by putting a sandwich of wood/foam and whatnot between it and the floor.

    The mounting the HDD under the seat as posted earlier is a pretty trick idea.

    Now back on topic

  4. #174
    Maximum Bitrate Dragonknell911's Avatar
    Join Date
    Aug 2004
    Posts
    521
    Her computer is not under her seat, nor is apparent she wishes to put it there. She was suggesting that someone else not do it, if anything...
    REBUILDING!!

  5. #175
    Car Audio Moderator durwood's Avatar
    Join Date
    Sep 2006
    Location
    Chicagoland (St. Charles,IL)
    Posts
    2,028
    Quote Originally Posted by schreibers View Post
    The mounting the HDD under the seat as posted earlier is a pretty trick idea.

    Now back on topic
    Hehehe. Thanks. And its in a removable 5.25" enclosure. I just pop it out and go inside pop it in my home computer and load up more music/audio software to install later..etc.

    Scott_fx-
    I was always under the impression Spread spectrum was similar to what 900Mhz/2.4ghz cordless phones used to reject noise/interference. Would the Spread Spectrum or Smart Clcok feature help reduce USB DAC jitter? I am pretty sure the M10000 ITX board has those features..or at least the Spread spectrum feature.

  6. #176
    Car Audio Moderator durwood's Avatar
    Join Date
    Sep 2006
    Location
    Chicagoland (St. Charles,IL)
    Posts
    2,028
    Quote Originally Posted by Dragonknell911 View Post
    Her computer is not under her seat, nor is apparent she wishes to put it there. She was suggesting that someone else not do it, if anything...
    I wouldn't recommend it either unless you really plan it out. I agree the safest place is in the trunk. But then you have other things to worry about. I wish I could find that thread again. It was a good read.

  7. #177
    Newbie
    Join Date
    Apr 2005
    Posts
    46
    A lot of what we are discussing has been covered here quite some time a go. This should help out some though.

    http://www.diyaudio.com/forums/showt...threadid=63078

  8. #178
    _
    Join Date
    Mar 2004
    Location
    Little Elm, Texas
    Posts
    13,500
    sweet find!

    I'm kind of swamped with other things right now and it looks like it's going to take a good deal of reading to fully understand it.

    Am I correct in my initial understanding that this guys set-up will do EVERYTHING that we're needing and wanting?

    Is he saying that he ended up needing a separate computer just for the XO function and another for all other processing functions as well as video stuff?

    I'm planning on spending a good deal of time reading through it all, but I would greatly appreciate a bit of insight here....lol
    Jan Bennett
    FS: VW MKIV Bezel for 8" Lilliput - 95% Finished

    Please post on the forums! Chances are, someone else has or will have the same questions as you!

  9. #179
    _
    Join Date
    Mar 2004
    Location
    Little Elm, Texas
    Posts
    13,500
    Ok - so I've read the first 6 pages or so....the thread is a bit dificult to follow.

    I'm going to see if I can post up over there and ask a few more specific questions.
    Jan Bennett
    FS: VW MKIV Bezel for 8" Lilliput - 95% Finished

    Please post on the forums! Chances are, someone else has or will have the same questions as you!

  10. #180
    Super Moderator. If my typing sucks it's probably because I'm driving.... turbocad6's Avatar
    Join Date
    Oct 2004
    Location
    NY
    Posts
    6,234
    my first thoughts along these lines were that it will be processor intensive... my second thoughts were to use a dedicated machine for this, & then another as the actual carpc...

    I mean the alpine is a dedicated box, so this could be too... a kvm could keep this managable through one screen... I don't know if I'm the only one who would consider multiple machines though... I have 2 motherboards going in my minivan right now, one for front & one for rear... adding a 3rd wouldn't be that intense for me....

    I'd be afraid trying to run everything on one machine will cause issues, maybe a really fast dual core with a system that can take advantage of this, but I would rather do independant pentium m machines.....

    so how crazy is running a dedicated machine for audio processing? would anyone else consider this?... imagine if it could run on linux... it could be kinda like the alpine in the end, BUT with everything we'd want... best audio quality with pc interface.... is this a consideration? I don't know enough about linux to do this, I guess a stripped down xp machine could do this well too.... maybe an xp embedded solution.....

Similar Threads

  1. AutoTap used to develop custom software!
    By Dodger1417 in forum Engine Management, OBD-II, Engine Diagnostics, etc.
    Replies: 5
    Last Post: 09-25-2006, 11:51 AM
  2. comparison of GPS Software
    By gunsandrosses in forum Newbie
    Replies: 4
    Last Post: 06-28-2006, 10:56 PM
  3. CarPal Bluetooth Module & Digimoto Software....A Very Good Combo..
    By jmciver in forum Engine Management, OBD-II, Engine Diagnostics, etc.
    Replies: 6
    Last Post: 06-16-2006, 05:08 PM
  4. Replies: 2
    Last Post: 11-15-2005, 02:38 PM
  5. CoPilot Software or USB GPS Receiver package
    By Zip-Lock in forum Classified Archive
    Replies: 5
    Last Post: 05-13-2004, 08:30 AM

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
  •