Forums

Using Hilbert-Huang transfor in audio?!

Started by lapidarylee May 8, 2009
Dear all,

As I know, the Hilbert-Huang transform (HHT)
(http://techtransfer.gsfc.nasa.gov/HHT/) is a powerfull tool declared by
NASA. Compared to Fourier transform (FFT), HHT is capable of analyzing
time-varying processes, nonlinear & nonstationary signals that are in a
real world.
It seems to be interesting if we can use it in audio signal processing
like identification, noise cancellation...etc.    

Nevertheless, Its hard to google some real product.
I am wondering about its computational complexity, can it acheive realtime
on PC or some specific embedded platform?! is there any example ?!

Except for computational complexity, is there any other trouble with using
it in audio application ?!

Thanks

Ryan
On May 8, 2:27 am, "lapidarylee" <Ryan_...@ali.com.tw> wrote:
> Dear all, > > As I know, the Hilbert-Huang transform (HHT) > (http://techtransfer.gsfc.nasa.gov/HHT/) is a powerfull tool declared by > NASA. Compared to Fourier transform (FFT), HHT is capable of analyzing > time-varying processes, nonlinear & nonstationary signals that are in a > real world. > It seems to be interesting if we can use it in audio signal processing > like identification, noise cancellation...etc. > > Nevertheless, Its hard to google some real product. > I am wondering about its computational complexity, can it acheive realtime > on PC or some specific embedded platform?! is there any example ?! > > Except for computational complexity, is there any other trouble with using > it in audio application ?! > > Thanks > > Ryan
This has been discussed here before. http://www.dsprelated.com/showmessage/110978/1.php What makes you think you haven't successfully googled all functional products based on the HHT? Dale B. Dalrymple