Richard Sloan wrote:
>
> I mean can we record and store the 1 or 1.5bit data? can it be done without buffering?

Sure you can record depending on what medium
you are using for storage. I2C eeprom is probably
ok depending on what bitrate. Parallel ram with
a simple counter is much faster and you could
record multiple waveforms. No buffering is needed,
the calc is performed quickly on each BIT, then
the bits are just stored.
-Roman


> >>  Yes, the PIC can record fine if it has an 8bit
>  >>  or better ADC input. A '628 might be the PIC for
>  >>  the job. Stereo, even multitrack recording is easy
>  >>  at normal frequencies.
>  >>  -Roman
>
>  >>  Richard Sloan wrote:
>  >>  >
>  >>  > Very nice Roman, did I miss something or can you record with the PIC
>  >>  also?
>  >>  >
>  >>  >  >>  Sorry! Forgot to give the webpage where you can get
>  >>  >  >>  the software:
>  >>  >  >>  http://centauri.ezy.net.au/~fastvid/picsound.htm
>  >>  >  >>  -Roman
>  >>  >
>  >>  >  >>  Roman Black wrote:
>  >>  >  >>  > (playing speech audio on a PIC)
>  >>  >  >>  > I wrote some software that shows the waveform and
>  >>  >  >>  > the encoder waveform, with some adjustments to the
>  >>  >  >>  > encoding parameters. It models the RC filter and
>  >>  >  >>  > even tells you values of R and C to use.
>  >>  >  >>  >
>  >>  >  >>  > It's really a "PIC sound suite" that allows you to
>  >>  >  >>  > load your own sound waveforms in, view them, try
>  >>  >  >>  > different encoding formats and and see how the
>  >>  >  >>  > sound will turn out as it is plotted on screen.
>  >>  >  >>  > Then dump the bitstream data straight into your
>  >>  >  >>  > PIC.
>  >>  >
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