MP3 player board dillema!!!

Development Boards MicroMod
1

Hi,

I am new to mp3 and audio stuff in embedded systems.

Which one of the 3 models is best for mp3 player project LPC-2378STK, SAM7-EX256 or STR-E912 ?

Do they need extra hardware for this project like codecs ??!

thanks

2

I’d choose one for which you can get the software, unless you want to write it from scratch. You will need a DAC, or a codec, if the board you use hasn’t got one.

Leon

3

leon_heller:
I’d choose one for which you can get the software, unless you want to write it from scratch. You will need a DAC, or a codec, if the board you use hasn’t got one.

Leon

hi,

but the board is fitted with headphone jack. Is it connected to any DAC? if yes then i dont need any extra hardware.,isnt it?

what are the minmum specs for a DAC to get acceptable sound quality?

thanks

4

Do all the boards have that jack?

I think that 24-bit DACs are usually used, like those made by Cirrus. You need a proper audio device, anyway.

You still need a board for which you can easily get the software.

Leon

5

leon_heller:
Do all the boards have that jack?

I think that 24-bit DACs are usually used, like those made by Cirrus. You need a proper audio device, anyway.

You still need a board for which you can easily get the software.

Leon

So which one has better support for audio application and generally?

i found that they offer this example “HID Audio device demo” is that enough to start?

thanks

6

I don’t think that HID is relevant, it refers to a USB device type.

I don’t know anything about those boards, I’ve only used the Embedded Artists ones.

Leon