Embodiments of methods, apparatuses, devices and systems associated with encoding and/or decoding audio data are disclosed. More particularly, the claimed subject matter relates, at least in part, to a data compression/decompression method or technique, such as a lossless, approximately lossless, and/or relatively lossless data compression/decompression method or technique, for example, along with systems or apparatuses that may relate to method or technique. The disclosed techniques and methods may achieve audio data compression ratios that may be comparable to lossless compression processes. In addition, under certain circumstances, such compression ratios may be achieved while also reducing or simplifying the computational complexity of the compression and/or decompression method or technique.