[Coco] cocotape.exe project

[Roger Taylor]

At 10:23 PM 11/17/2008, you wrote:
>Zooming in on the bedlam.wav file in Audacity (open source audio 
>editor), you can clearly see that the sampling rate is lower than 
>you'd expect but just enough to get by.  The 1200hz and 2400hz sine 
>waves appear to be first generated in the software but then run 
>through a 11025hz filter, or that 11025hz won't allow for a perfect 
>series of 1200/2400 sine waves using the same "sample data".
>--

It appears the average samples per 1200hz sine wave is 9, average per 
2400hz wave is 4.  You can even see this in the zoomed waveform, with 
lines drawn between distant samples.  This sampling rate is obviousy 
lower than what the CoCo outputs.

11025 / 1200 = 9.1875
11025 / 2400 = 4.59375

You would think Vavasour would have made the sampling rate something 
that would have simplified outputting the sine wave samples.



-- 
Roger Taylor

http://www.wordofthedayonline.com