Results 1 to 4 of 4

Thread: Embedded MP3?

  1. #1
    Newbie
    Join Date
    Jul 2000
    Location
    Kent, OH USA
    Posts
    2

    Question Embedded MP3?

    I noticed that most people here have created mp3 boxes from standard PC components. Has anyone out there tried to use embedded microprocessors or microcontrollers (Motorolla / PIC / etc) to implement an MP3 box?

  2. #2
    Newbie
    Join Date
    Oct 1999
    Location
    Yukon, ok , USA
    Posts
    43

    Post

    I am trying to do this with a single board 386 with the lp3 music.

    The major problem with using non-pc hardware is interfacing to a large storage medium. There have been some people who have interfaced an IDE harddrive to a microcontroler. That and the fact that you will have to use some sort of dedicated hardware decoding scheme for every thing to work.

    In general it is easyer to put together a player from standard parts and software than designing hardware and hand tuning assembly code.

    Like I said I am trying to implment a car player on minumal hardware with hardware decoding. I will be using on of the embedded linux distros for the os with the lp3 player/data manager and driver.

    I am not saying that this cannot be done but there is a large knowledge factor here. Use what you know and implement it.

  3. #3
    Newbie
    Join Date
    Jul 2000
    Location
    Kent, OH USA
    Posts
    2

    Lightbulb

    I thought about creating an mp3 box with a low-end cpu also, but I was just thinking that using a full size computer seems to be overkill. I mean, mp3 decoding could be as simple algorithm as:

    access mp3 file (using microcontroller) -->
    decode mp3 file (using digital signal processor) -->
    digital-to-analog converter -->
    RF modulator or any output...

    The PC parts and accessories in combination accomplishes this well, but with the overhead of an multitasking OS (Windows, Linux).


    I guess you are right when it comes to the technical know-how...
    Any hacker out there who wants to try... let me know...

    RWX

  4. #4
    Raw Wave Rob Withey's Avatar
    Join Date
    Apr 2000
    Location
    Bedfordshire, UK
    Posts
    2,139

    Post

    You don't need a multi-tasking OS. What's wrong with DOS? My player is built around an embedded PC mobo. Although it's still basically a PC, it's a very small PC with everything on the mobo, so no expansion cards.


    Rob


    ------------------
    -- <A HREF="http://www.nav.to/robwithey" TARGET=_blank>http://www.nav.to/robwithey
    </A>
    Old Systems retired due to new car
    New system at design/prototype stage on BeagleBoard.

Similar Threads

  1. Commerical MP3 Hardware
    By MooN in forum General Hardware Discussion
    Replies: 15
    Last Post: 09-26-2005, 05:22 AM
  2. In dash car MP3 CD Costs
    By mp3designer in forum Classified Archive
    Replies: 7
    Last Post: 02-06-2001, 04:23 PM
  3. MP3 costs
    By mp3designer in forum General Hardware Discussion
    Replies: 24
    Last Post: 01-29-2001, 01:18 PM
  4. Car MP3 Costs
    By mp3designer in forum General MP3Car Discussion
    Replies: 31
    Last Post: 01-25-2001, 07:19 AM
  5. Do you guyz know this cool machine?
    By Ginger in forum General Hardware Discussion
    Replies: 3
    Last Post: 04-19-2000, 12:38 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
  •