English
- function [sqnr,a_quan,code]=mula_pcm(a,n,mu)
- %MULA_PCM mu-law PCM encoding of a sequence
- % [SQNR,A_QUAN,CODE]=MULA_PCM(A,N,MU).
- % a=input sequence.
- % n=number of quantization levels (even).
- % sqnr=output SQNR (in dB).
- % a_quan=quantized output before encoding.
- % code=the encoded output.
- [y,maximum]=mulaw(a,mu);
- [sqnr,y_q,code]=u_pcm(y,n);
- a_quan=invmulaw(y_q,mu);
- a_quan=maximum*a_quan;
- sqnr=20*log10(norm(a)/norm(a-a_quan));
