Hello Guys..
I need an IC for my audio project which can vary the pitch of a sound wave which I will input using a microphone.
Can anyone help me with this..??
You'll need a DSP (digital signal processing) chip or a computer and some DSP programming. It's easy to change pitch by changing playback speed (tempo) and that doesn't take any "fancy" DSP, but sometimes you don't want to do that and of course you can't do that in real time. Changing pitch without changing speed is more mathematically complex.
DVDdoug:
You'll need a DSP (digital signal processing) chip or a computer and some DSP programming. It's easy to change pitch by changing playback speed (tempo) and that doesn't take any "fancy" DSP, but sometimes you don't want to do that and of course you can't do that in real time. Changing pitch without changing speed is more mathematically complex.
Okay, Fine. Can you please mention how to program a DSP chip and the cheapest DSP chip available..
What you are asking would take a full book to fully explain, essentially what you need is a system called a vocoder you might be able to implement one on a teensy 3.2 or 3.6 but it is not a simple thing to do.