MP3 player for MSX

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By Patsie

Master (254)

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25-02-2007, 23:56

syntax_error wrote: I'm interested. i wanna buy it!!! msx goes multimedia> HELLO WORLDTongueTongueTongueTongue
That gives a whole new dimension to writing a 'Hello World' program for this new device Wink

By Sousuke

Master (177)

Sousuke's picture

26-02-2007, 00:10

syntax_error wrote: I'm interested. i wanna buy it!!! msx goes multimedia> HELLO WORLDTongueTongueTongueTongue
That gives a whole new dimension to writing a 'Hello World' program for this new device Wink
Who's willing to volunteer, grabbing microphone, speaking these magical words, and compress it into MP3?
Could be a funny idea, as a demo-MP3. Tongue

By poke-1,170

Paragon (1765)

poke-1,170's picture

26-02-2007, 00:52

so out of curiosity, how do you store mp3's on it ?

By dvik

Prophet (2200)

dvik's picture

26-02-2007, 01:19

so out of curiosity, how do you store mp3's on it ?
I think you don't. The cart only has a short buffer that you need to feed mp3 data from the MSX, right?

By Prodatron

Paragon (1800)

Prodatron's picture

26-02-2007, 01:22

@Prodatron: Would it be possible to make a small modification to the mp3 cart to make it work in CPC, or are the architectures too different?

Unfortunately I am not a hardware specialist at all.
A MP3 player has already been produced for the CPC some years ago, but as it was (1) only connected via the printer port and (2) there wasn't any IDE interfaces/devices available at this time. So it didnt make much sense because of 100% CPU usage and limitation to 20seconds music or so.
I hope, that a useful version will come for the CPC, too, but now I am very very happy, that I already can try it on the MSX soon! My dream is to use a OCM + MP3 card + CF-Interface/Card + SymbOS as Multimedia station in my living room Cool

By dvik

Prophet (2200)

dvik's picture

26-02-2007, 01:29

My dream is to use a OCM + MP3 card + CF-Interface/Card + SymbOS as Multimedia station in my living room

Yeah, that sounds like a really cool setup Smile Even cooler is the same setup but instead of CF, have obsonet + a wifi card in the CF slot Cool

By poke-1,170

Paragon (1765)

poke-1,170's picture

26-02-2007, 01:30

so that means you need a HD or Cf card in your msx in order to store mp3s ?

I guessed the msx would send a signal to the cart, and have an output of some kind..
or the msx'es one

By Prodatron

Paragon (1800)

Prodatron's picture

26-02-2007, 01:38

Yes, or Obsonet to play endless internet radio Hannibal But in this case it's your turn, Dvik, to implement the MP3 card in BlueMSX, as Obsonet unfortunately isn't available in real hardware yet Tongue Of course I would appreciate this for development reasons a lot!
@Poke-1,170: Without a HD you would only be able to load small MP3s from floppy disc, I guess.

By dvik

Prophet (2200)

dvik's picture

26-02-2007, 01:46

But in this case it's your turn, Dvik, to implement the MP3 card in BlueMSX
This should be very easy to implement. Yobi, if you want it emulated, send me an email with specifications and I'll start right away. Having the device emulated will make it easier for people to develop sw using the cart and most likely increase popularity.

By Yobi

Master (149)

Yobi's picture

26-02-2007, 07:28

But in this case it's your turn, Dvik, to implement the MP3 card in BlueMSX
This should be very easy to implement. Yobi, if you want it emulated, send me an email with specifications and I'll start right away. Having the device emulated will make it easier for people to develop sw using the cart and most likely increase popularity.

Emulating the device is a nice thing.
If we have the final, you will get more specs.
Here is the spec for the MP3 decoder www.walrus.com/~raphael/mp3/MMC_version/vs1011b.pdf
IO &h21 for resetting the VS1011b
IO &h22 for Audio data. (raw MP3)
IO &h23 for Status/Control etc

Here the spec for the I2C proc.
www.standardics.nxp.com/products/pca/pdf/pca9564.pdf
IO &h24 for I2C Timeout/Status
IO &h25 for I2C Data
IO &h26 for I2C Own address
IO &h27 for I2C Control

Gr, Yobi

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