Portable guitar recorder

Discussion in 'The Projects Forum' started by kingslayer, May 6, 2010.

  1. kingslayer

    Thread Starter Member

    Mar 20, 2010
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    Hi all,

    I just started to work on a new project regarding a portable guitar audio recorder to do by my own (or anyone else who wants to work with me :)).

    The premise is the following: I want to create a certain background on embedded design from hardware to firmware to software, in an integrated way. I already have some expertise on FPGA hardware design, software design and little experience with firmware for microcontrollers, but I lack in PCB design :confused:. I think this is an oportunity for me to get such a background, and also to enjoy!!

    The output of the project should be something like a portable guitar recorder that can be connected to the PC via USB. THe guitarist (i.e., me :D) plugs the guitar into the device and this will encode the input audio into MP3 (probably mixing the incoming guitar output with an already existing MP3, e.g. from a CD player) and sends it to the PC via USB (or store the encoding on a USB key). I know there are lots of those devices out there, but this project is meant to enjoy electronics, and for me to create a certain background.

    Does anyone of you would like to participate with me? Notice that this will be something to do in my/your spare time, since as many of you my main time is dedicated to my job :cool: (let's say I will allocate 2/3 years to do the project, working on it once a week) and, aboveall, the output will not be sold. It would be interesting to do all the stuff in an "open source" policy: hardware and software design will be accessible to anyone!

    Thanks for your participation
    Simone
     
  2. Externet

    AAC Fanatic!

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  3. JoeJester

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    Apr 26, 2005
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  4. kingslayer

    Thread Starter Member

    Mar 20, 2010
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    Great! Thanks for the advice: that site is very interesting.

    Regards
    Simone
     
  5. t06afre

    AAC Fanatic!

    May 11, 2009
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    Looks like you want to build an USB sound card;)
     
  6. kingslayer

    Thread Starter Member

    Mar 20, 2010
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    :D I actually have a draft architecture in mind, but I have to collect more detailed specifications on it.
     
  7. retched

    AAC Fanatic!

    Dec 5, 2009
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    Also take a look into data loggers. What you are working towards has been done, but I am guessing you want to design from scratch for the knowledge.

    There are a few used in biology for recording bat calls in the wild, then taking them back to the lab, connecting to a PC and analyzing the sounds.
     
  8. kingslayer

    Thread Starter Member

    Mar 20, 2010
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    Data loggers... I never knew about them.
    Thanks again guys for precious help.

    Regards
    Simone
     
  9. svenn

    New Member

    Jul 2, 2010
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    Simone,
    why do you want to do the mp3 stuff in your box? mp3 is not exactly open source friendly, but you didn't tell much about the motivation for making such a box except for gaining experience. It sounds very much like a play-along/sing-along recorder, but maybe you could elaborate a bit more.
     
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