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
Using Hilbert-Huang transfor in audio?!
Started by ●May 8, 2009
Reply by ●May 8, 20092009-05-08
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 > > RyanThis 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