1. A magnetic resonance spectroscopy (MRS) processing system configured to process a multi-frame MRS spectral acquisition series of data generated and acquired from a voxel within a region of interest (ROI) in a patient via an MRS pulse sequence operation of an MRS system and using multiple acquisition channels of a multi-coil detector assembly, and to provide a processed MRS spectrum from which spectral data may be extracted and processed to provide diagnostic information for a medical condition associated with the ROI, comprising: an automated MRS signal processor comprising at least one of: (a) a channel selector configured to select at least one channel among the multiple acquisition channels to retain for further processing to generate the processed MRS spectrum, said selection of at least one channel performed by comparing a measured feature of acquired data from each respective channel against at least one threshold channel selection criterion, (b) a frequency shift corrector configured to recognize and correct a frequency shift error between the acquired spectral acquisition series of data, or partially processed MRS spectra associated therewith, corresponding with at least a portion of the respective frames of the acquisition series, and (c) a frame editor configured to recognize and edit out a first set of excluded frames from a second set of retained frames, respectively, from the acquisition series based upon at least one threshold frame editing criterion; and wherein the automated MRS signal processor is configured to receive and process the MRS spectral acquisition series of data to generate the processed MRS spectrum; and wherein the automated MRS signal processor comprises at least one of: (a) at least one computer processor, and (b) software provided in computer readable non-transitory storage and that is configured to be run by at least one computer processor.