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PICList Thread
'MP3 harware player'
1999\03\11@163555 by ryan pogge

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Is anyone interested in working with me to design a hardware
MP3
Player based on the MAS3507D MPEG-1/2 Layer 2/3 DSP chip
I will use A pic to control it (I2C), and it will get its
data from a
ATA/ATAPI device (hard disk).
I have some info/schematics/source to other peoples similar
projects
but they used AVR's... but it is good reference.
the reason I posted to the stamp list also is that I may use
PIC Basic
to implement some of the stuff...maybee... probably
not....but maybee =)
Regards,
Ryan
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1999\03\12@071341 by Pavel Korensky

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At 16:28 11.3.1999 -0500, you wrote:
>Is anyone interested in working with me to design a hardware
>MP3
>Player based on the MAS3507D MPEG-1/2 Layer 2/3 DSP chip

Where are you buying those chips ?? MP3 player is on my list of "toys I
would like to build" for a long time, but I am not able to find any source
of those chips (I would like to buy only 2 or 3 pieces).

Best regards

PavelK

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1999\03\12@113549 by Wagner Lipnharski

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Pavel Korensky wrote:
> Where are you buying those chips ?? MP3 player is on my list of "toys I
> would like to build" for a long time, but I am not able to find any source
> of those chips (I would like to buy only 2 or 3 pieces).

There is a friend doing a device like that. Look this few hints from
other list... (ahamm, Atmel AVR list):
-------------
> -The FIRST public domain portable hardware mp3 player-
> http://gussie.alaska.net
-------------
> Hi All,
I've found several projects with a ms3507 from Micronas/Intermetall,
which is problably the most known "MP3" decoder chip. But I'm looking
for an MPEG1 Layer 3 (MP3) ENcoder chip. I checked the
Micronas/Intermetall site, but they do not have such a chip. Where can I
find a chip simular to the ms3507 but then the other way around?
>Greetz,  Radboud Verberne
-------------
>I've completed 3 working versions of the MP3/MP2/MP2.5 audio bit stream player.
My 4th version is the that I had the stack pointer question on. Anyway, one of
these MPEG bit stream players can be built for about $45. The nice thing is that
a minute of stereo CD quality sound only takes up 998K. You can compress audio
12:1 using mp3 compression and not loose quality! Thats 1.4MBit a sec to 128kbit
! 1MB can store >3 minutes of FM-AM quality sound. Plans and schematics are avai
lable at http://gussie.alaska.net/files/ACPlay I'm going to get my homework done
, then finish reworking the ACPlay section of the site. There will also be the o
ption of a portable player which has a char or graphic LCD (storage is an ATA/AT
API device) and a portable player which uses a TI calculator as the monitor and
control pad. All code for ATA/ATAPI will be posted. BTW, all of this project was
done on the 1200 and 8515!  (1200 for PP model and 8515 for IDE/ATAPI)
>Thanks for your time, Grant
-------------
I hope this can help you.
--------------------------------------------------------
Wagner Lipnharski - UST Research Inc. - Orlando, Florida
Forum and microcontroller web site:   http:/http://www.ustr.net
Microcontrollers Survey:  http://www.ustr.net/tellme.htm

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