Splendid, thank you!



Juan Vuletich wrote:

>
> Hi.
> It's already there. FFT >> transformForward: takes a boolean that 
> specifies if the transform is forward or inverse.
> Take a look at FFT >> test and run the example in the comment.
> Cheers,
> Juan Vuletich
>
> ----- Original Message ----- From: "Cornelius Huber" <corny at impara.de>
> To: <squeak-dev at lists.squeakfoundation.org>
> Sent: Thursday, April 28, 2005 9:06 AM
> Subject: implementation of a IFFT in Squak for a vocoder
>
>
>>
>> Hi,
>>
>> I am currently working on squeak's audio capabilities. I have tried 
>> out some of the recording, playback and synthesis capabilities.
>> Right now, I would like to build a vocoder using the FFT.
>>
>> The first step is to decode both input signals using the FFT and 
>> analyzing it's frequency bands. I found that this is somewhat already 
>> implemented in the class PhonemeRecognizerMorph.
>> Now I need to modulate the second signal with the frequencies from 
>> the first signal, using an IFFT.
>>
>> I am not quite sure how to implement that.
>>
>> Can anybody help me implementing the code for a IFFT or possibly 
>> point to somewhere, where it already might be implemented?
>>
>>
>> Thanks!
>> Corny
>>
>>
>