[Icc-avr] Off topic question

[Jim Patchell]

You can just truncate (or round for a bit better SN) the 16 bit samples. 
  I did something similar several years ago.  I wrote my own program for 
reading in the PCM file, and then it would spit out the data as a .C 
file in the form of a char array...it is actually fairly simple.  I 
would send you the program, but, that was one job ago...and I didn't 
keep a copy of it. :-(

I googled for the specification of the .wav file format, and wrote the 
code from there.  Sorry if this isn't much help....

-Jim

John Baraclough wrote:
> Sorry about being a little off topic, but the list has been very quiet 
> recently and I thought this would be the most likely place to get a 
> sensible answer to my problem.
> 
> I am building a unique metronome to use when practising Taiko drumming. 
> It has red & green LEDs which indicate the hands and the brightness of 
> the LEDs will indicate the strength of the beats. Everything so far is 
> easy, but I want to add a 'voice' to it, and I think that PCM sampled at 
> 8kHz and 8-bits will be perfectly adequate for my purpose. I will be 
> using a MAX522 SPI DAC as I already have these parts from another project.
> 
> So here's the question. How do I record speech at 8-bit resolution using 
> a PC? I have the Audacity audio editing package and it will record at 
> 8kHz sampling but only at a minimum of 16-bit resolution. Can anyone 
> give me a link some software which can reduce a 16-bit WAV file to only 
> 8-bits so that I can extract the data and programme an external EEPROM.
> 
> Thanks for reading.
> 
> All the best for now,
> John 
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> 

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