Systems, methods, and computer program products for compression, digital watermarking, and other digital signal processing for audio and/or video applications

Systems, methods, and computer program products are provided for digital signal processing, which may include obtaining a first set of digitized coefficients from source data and determining a best-fit distribution of a generalized Gaussian distribution for the set of digitized coefficients. The digital signal processing may further include applying a quantization algorithm to the first set of plurality of digitized coefficients to obtain a second set of quantizers, wherein the quantization algorithm is based at least in part on the determined best-fit distribution, and providing second set of quantizers as a compressed representation of the source data. The digital signal processing may also include retrieving suspected encoded data, determining at least one parameter of a generalized Gaussian distribution for the suspected encoded data, determining a digital watermark within the suspected encoded data based at least in part on the determined parameter, and extracting the digital watermark from the suspected encoded data.