Title : 
Quality measurements on speech coders for mobile radio
         
        
        
            Author_Institution : 
Laboratory of Acoustics, Trondheim-NTH, Norway
         
        
        
        
        
        
        
            Abstract : 
Subjective quality measurements on speech coders for mobile radio were performed by the "Mean Opinion Score Method". Tested coders were adaptive transform coder (ATC), adaptive predictive coder (APC), sub-band coder (SBC), and residue excited linear predictive coder (RELP) with transmission rates below 16 kbit/s. Promising results were obtained for RELP, SBC, and APC, while the tested versions of ATC got disappointingly low scores.
         
        
            Keywords : 
Acoustic measurements; Acoustic testing; Bandwidth; Filtering; Laboratories; Land mobile radio; Performance evaluation; Speech analysis; Speech coding; Speech processing;
         
        
        
        
            Conference_Titel : 
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '82.
         
        
        
            DOI : 
10.1109/ICASSP.1982.1171416