(41C) Companding

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An extract from The Use of Companding in Conference Voice Communications Systems, Jon Parry Klages {BSE - UoCF}, MSE Thesis, Summer 1983, 60 pages

" … Pulse Code Modulation in the form of Companding has been found to be a viable method to implement a conferencing communication system …
…
     APPENDIX
HP-41C PROGRAMS
01  LBL   UNSNR     …   22  END
01  LBL   SNR         …   47  END
01  LBL   MU-LAW   …   28  END
01  LBL   CODE       …   43  END
01  LBL   DECODE    …   41  END
01  LBL   XLATE      …   85  END
01  LBL   SUM         …   73  END

BEST!
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