In recent years, the proliferation of internet streaming applications has brought about the need for low-bit rate speech and audio coding methods. Several parametric designs such as the sinusoids+transients+noise model have been somewhat successful for speech and audio synthesis. Low-bit rate and streaming applications are restricted by only being...

Most modern speech compression (coding) algorithms, for example those used in cell phones, deliver narrowband (=3200Hz) telephone (near toll) quality speech. This limits the naturalness and intelligibility of the speech signal. Although wideband coding technology is available for most networks, the cost of renewing the entire infrastructure to support...