Added: 4 years ago
From: picflash72
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  • good job. can u make the same with arduino uno?

  • part list plz

  • dude im making the same project in my lab project par. can u help me?

    how did you convert the ".wav" file to 8 bit binary file?

    and second question how does a binary file regain its audio properties or identity when converted back to Analog?

    dude can we do the same work with PIC16f876A?

    waiting

  • @superjini777

    1. You can use sound editor software and save it to unsigned , 8Khz, Mono, raw format.

    2. it use R2R DAC, playback at port D

    3. Any MCU will do, just the matter how long you can playback, it depend on MCU ROM, you can use external memory like SD Memory if your MCU is fast enough.

  • @picflash72 I dude! u rocked! v nice work..i need to know that how did u converted a wav file that have 44KHz,Stereo, 320kbps into unsined 8khz,Mono??? any software??? and what should be the bitrate of the raw file? Thanks

  • Comment removed

  • @superjini777 hey can i make this using an eeprom? if you know how please answer this dude!

  • dude im making the same prject in my lab project par. can u help me?

    how did you convert the ".wav" file to 8 bit binary file?

    and secopnd question how does a binary file regain its audio properties or idenity when converted back to Analog?

    dude can we do the same work with PIC16f876A?

    waiting

  • nasty beep dares a big and fast hammer onto it

  • Nice job. This project is very easy to do. All you need is a uC and a table with 8-bit raw PCM samples. As a digital-to-analogue converter you can use either built-in PWM (and an external RC low-pass) or simple R2R ladder. The size of audio data can be simply caclulated by resolution and sample rate. In case we use 8-bit samples and 8000Hz sampling rate, the bitrate would be 64kbps or 8kB per second. I've done a similar project, but I added UART and SD-card support.

  • try this with music, how much audio can this thing hold?

  • @coondogtheman1234

    I use 18F4520 (16K word), simply use internal ROM memory, so it only playback 4sec for 8Khz sound quality.

    It also depend on playback sampling rate, if 4Khz quality, will be longer.

  • @picflash72

    I saw a sound module that looks like it's for a greeting card and it hooks to a computer and you can put any audio on it and it sounds great.

  • how do people do things like this??

  • Go pick up a fue books on electrical engineering a book on C or assmbley languages Its a fairly simple circuit as from the programming aspect microchip allready supplys the source code for this use of raw audio playback on there main site.

  • wow sum big words u got there i guess i can do that lol thats awsome though how people can do these kinds of things you know wow

  • Excellent !

    Are schematics and source code available ? (link ?)

  • Could i please get the full schematic and CSS C source code?

  • sir oucflash72 can u help me w/ ur project interfacing keyboard to pic mcu

  • in the sample, it is a wav file, convert to RAW 8bit.

  • can play .wav files?

  • Exelente aplicacion

  • hi

    Very nice project !!!

    do u use ccs c compiler????

    I dont now what compoment did u use???

    Can u please send me the code and schematic???

    i would like to build one of these.

    Check my videos ,project, and tell me if i can help u to .

    Thanks

  • Yes, using CCS C on 18F4520.

    Use Port D, connect to R2R DAC + Amplifier.

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