Orthogonal wavelet filter banks generate a single scaling function and wavelet, whereas biorthogonal wavelet filters generate one scaling function and wavelet for decomposition, and another pair for reconstruction. The orthogonal and biorthogonal wavelet filter banks are all suitable for N-D discrete wavelet and wavelet packet analysis. Daubechies’ least-asymmetric filters have the most linear phase response of the orthogonal filters. If you require linear phase, use biorthogonal filters. To learn about the wavelets available in Wavelet Toolbox™ that are suitable for continuous wavelet analysis, see Choose a Wavelet.