<div dir="ltr">Great job Richie!</div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Jun 15, 2016 at 11:17 AM, Chris McDowell <span dir="ltr"><<a href="mailto:declareupdate@gmail.com" target="_blank">declareupdate@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Yeah, great job! Sounds very clean and natural. Are you using a codec for audio in and out?<br>
<span class="HOEnZb"><font color="#888888"><br>
Chris<br>
</font></span><div class="HOEnZb"><div class="h5"><br>
> On Jun 15, 2016, at 9:06 AM, Eric Brombaugh <<a href="mailto:ebrombaugh1@cox.net">ebrombaugh1@cox.net</a>> wrote:<br>
><br>
> Great work Richie! Sounds fantastic.<br>
><br>
> I've done 2-pointer pitch shifters in just about every CPU architecture that I've ever used but the AM effects from simple cross-fading make them sound pretty awful. Autocorrelation and AMDF pitch detection are on the list of "things I'd like to get around to eventually" but so far haven't tackled. You've set the bar high here.<br>
><br>
> Eric<br>
><br>
><br>
> On 06/15/2016 06:50 AM, Richie Burnett wrote:<br>
>> Been playing about with pitch-shifting using a dsPIC33FJ128GP802.<br>
>> (Think monophonic pitch-shifter like the early Eventide Harmonizers.)<br>
>> Have posted some results here:<br>
>><br>
>> <a href="http://www.richieburnett.co.uk/temp/pitch/" rel="noreferrer" target="_blank">http://www.richieburnett.co.uk/temp/pitch/</a><br>
>><br>
>> Uses autocorrelation to continuously search for the best splice points<br>
>> in real time. Formant positions aren't preserved so speech eventually<br>
>> tends towards chipmunk or Satan if you shift too far in either direction.<br>
>><br>
>> -Richie,<br>
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