RusH <logistyka1@pf.pl> wrote in message news:<Xns94F8D447F6EB9RusHcomputersystems@193.110.122.80>...
> "Nastyd" <nastyd@fuckspam.o2.pl> wrote :
>
> > Hello!
> >
> > I'm looking for a way to build small mp3 network player. It should
> > be something like http://mp3elf.net/ but cheaper. Could you suggest
> > me some embedded system that has:
> > - low price
> > - stereo output
> > - ethernet with tcp/ip
> > - rs232 (not necessarily)
> > - lpt (for LCD)
> >
> > Of course, it should be fast enough to decode 320 kb/s mp3 files.
> > System could be stored locally on flash or booted over network.
>
> + Very little experience in electronics
>
> hmm, Asus WL500, its a MIPS based Linux Acces Point. Wifi, rj45, LPT,
> USB
> add USB sound card and you got MP3 player
>
>
> Pozdrawiam.
> Hello!
>
> I'm looking for a way to build small mp3 network player. It should
> be something like http://mp3elf.net/ but cheaper. Could you suggest
> me some embedded system that has:
> - low price
> - stereo output
> - ethernet with tcp/ip
> - rs232 (not necessarily)
> - lpt (for LCD)
>
> Of course, it should be fast enough to decode 320 kb/s mp3 files.
> System could be stored locally on flash or booted over network.
+ Very little experience in electronics
hmm, Asus WL500, its a MIPS based Linux Acces Point. Wifi, rj45, LPT,
USB
add USB sound card and you got MP3 player
Pozdrawiam.
--
RusH //
http://pulse.pdi.net/~rush/qv30/
Like ninjas, true hackers are shrouded in secrecy and mystery.
You may never know -- UNTIL IT'S TOO LATE.
Reply by Hans-Bernhard Broeker●May 26, 20042004-05-26
Tech Support for IDE-CF <tech@ide-cf.info-for.us> wrote:
> > After all, you could hook up an 8051 to a 3 GHz PC and call that PC
> > "some hardware", right?
> 3 GHz would be an overkill. Mp3 need approx 50 MIPS (or Pentium 100).
But that spoil all the fun, wouldn't it? As you go out to shoot fish
in a barrel, may as well break out the machine gun to do it with ;-)
--
Hans-Bernhard Broeker (broeker@physik.rwth-aachen.de)
Even if all the snow were burnt, ashes would remain.
Reply by Tech Support for IDE-CF●May 26, 20042004-05-26
Hans-Bernhard Broeker <broeker@physik.rwth-aachen.de> wrote in message news:<2hdsicFbdgd4U2@uni-berlin.de>...
> Nastyd <nastyd@fuckspam.o2.pl> wrote:
> > > Decoding mp3 with microcontrollers are not that easy, unless you have
> > > hardware assistance.
>
> > Like what?
> > Would 8051 + some hardware be enough?
8051 by itself is not enough, but it will be fine to config a mp3
decoder chip as mentioned below.
>
> For a somewhat flexible interpretation of "some hardware": sure ;-)
>
> After all, you could hook up an 8051 to a 3 GHz PC and call that PC
> "some hardware", right?
3 GHz would be an overkill. Mp3 need approx 50 MIPS (or Pentium 100).
>
> But, jest aside. Yes, there is dedicated hardware that is a good deal
> more energy-efficient than a general-purpose microprocessor at
> decoding MP3s.
I am currently testing a Geode GX1 board playing mp3 (approx 80 MIPS)
using 1W (5V,200ma). It's a bit bigger than the slick commerical mp3
player, but much cheaper. I got it for $15 on ebay including
shipping. I added approx $30 more including a set of flash drives.
>
> The German computer magazine c't was just recently running a project
> called BlueMP3. Sounds quite like what you're trying to do. They use
> a dedicated MP3 decoder chip called VLSI VS1001k. A pre-assembled
> board is still in the 90 EUR price range, though.
Reply by Alex Gibson●May 26, 20042004-05-26
"Nastyd" <nastyd@fuckspam.o2.pl> wrote in message
news:c8o1ac$q9r$1@news.onet.pl...
> Hello!
>
> I'm looking for a way to build small mp3 network player. It should be
> something like http://mp3elf.net/ but cheaper. Could you suggest me some
> embedded system that has:
> - low price
> - stereo output
> - ethernet with tcp/ip
> - rs232 (not necessarily)
> - lpt (for LCD)
>
> Of course, it should be fast enough to decode 320 kb/s mp3 files.
> System could be stored locally on flash or booted over network.
>
Reply by Hans-Bernhard Broeker●May 24, 20042004-05-24
Nastyd <nastyd@fuckspam.o2.pl> wrote:
> > Decoding mp3 with microcontrollers are not that easy, unless you have
> > hardware assistance.
> Like what?
> Would 8051 + some hardware be enough?
For a somewhat flexible interpretation of "some hardware": sure ;-)
After all, you could hook up an 8051 to a 3 GHz PC and call that PC
"some hardware", right?
But, jest aside. Yes, there is dedicated hardware that is a good deal
more energy-efficient than a general-purpose microprocessor at
decoding MP3s.
The German computer magazine c't was just recently running a project
called BlueMP3. Sounds quite like what you're trying to do. They use
a dedicated MP3 decoder chip called VLSI VS1001k. A pre-assembled
board is still in the 90 EUR price range, though.
--
Hans-Bernhard Broeker (broeker@physik.rwth-aachen.de)
Even if all the snow were burnt, ashes would remain.
Reply by ●May 24, 20042004-05-24
> Decoding mp3 with microcontrollers are not that easy, unless you have
> hardware assistance.
Like what?
Would 8051 + some hardware be enough?
> Why would you need LCD to play mp3? I would just setup a playlist
> from a network server.
It should display what is currently playing and volume, but it isn't
necessary.
In future, I would like to control it with PDA connected to the network with
802.11b.
> If you must have a screen, the compaq internet appliance (IA1 or IA2)
> would be a good cheap box (<$100 on ebay) for this.
No, I don't want a screen. It should be as small and cheap as possible. I
want to place it in the kitchen and the bathroom.
Reply by Tech Support for IDE-CF●May 24, 20042004-05-24
"Nastyd" <nastyd@fuckspam.o2.pl> wrote in message news:<c8o5b0$fvt$1@news.onet.pl>...
> > Do you have any microcontrollers available to you ?
Decoding mp3 with microcontrollers are not that easy, unless you have
hardware assistance.
>
> No.
>
> > Are you going to have to buy everything needed to build this project ?
>
> Yes, beside LCD. Ideally I would like to use PC/104 board, but it's too
> expensive.
>
Why would you need LCD to play mp3? I would just setup a playlist
from a network server.
> > Do you have the experience to build and code something like this ?
>
> Very little experience in electronics, but I have some in coding in asm and
> C/C++ on x86 and 8051.
If you must have a screen, the compaq internet appliance (IA1 or IA2)
would be a good cheap box (<$100 on ebay) for this.
>
> > How much is your time worth ??
>
> I have plenty of time!
>> I have plenty of time!
>>
>
> I have none, so could You mail me some of that "time"? :-)
If You pay for it... ;>
Reply by Klaus Vestergaard Kragelund●May 23, 20042004-05-23
"Nastyd" <nastyd@fuckspam.o2.pl> wrote in message
news:c8o5b0$fvt$1@news.onet.pl...
> > Do you have any microcontrollers available to you ?
>
> No.
>
> > Are you going to have to buy everything needed to build this project ?
>
> Yes, beside LCD. Ideally I would like to use PC/104 board, but it's too
> expensive.
>
> > Do you have the experience to build and code something like this ?
>
> Very little experience in electronics, but I have some in coding in asm
and
> C/C++ on x86 and 8051.
>
> > How much is your time worth ??
>
> I have plenty of time!
>
I have none, so could You mail me some of that "time"? :-)