Variation on Windbond Chip ?

Hi,

I am designing a project the involves the variation of sound pitch. I have either a varying analog voltage or a PWM signal to feed into a device.

Can I vary sound pitch using an ISD33000 ? If not, any suggestions to be able to vary pitch ?

Any help would be appreciated,

Thanxs

A search of the ISD33000 product brief did not find "pitch", nor does the block diagram show any DSP other than filtering. Maybe someone can help you find another way.

Pitch is Frequency

Thanx for getting back to me Ron ... I think pitch is frequency. I didnt know that.

I took a look at the product brief and am thinking maybe it can be done by varying the XCLK or SCLK, or maybe another control variable.

What would happen if I provide a modulated (non periodic) clock signal to XCLK ? Would it still work, or does the CLK signal provided have to be of constant period ?

Thanx,

Carlos