OSMOOTH(1)                  General Commands Manual                 OSMOOTH(1)



NAME
       osmooth - smooth the measured frequency response of a speaker in a file

SYNOPSIS
       osmooth [-n] [-v] [filename]

DESCRIPTION
       Osmooth  is for smoothing the measured frequency response of a speaker.
       The input file is sequential text records, in  lexical  order  of  fre‐
       quency,  each record having the frequency, followed by the amplitude at
       that frequency, separated by white space. Blank  records  are  ignored,
       and  comment  records are signified by a '#' character as the first non
       white space character in the record. The smoothed output is on stdout.

       For any record in the file, containing the  frequency  F,  average  the
       amplitudes between F / 2^(N / 2) to F * 2^(N / 2), where N is 1/2, 1/3,
       1/12, etc., fraction of an octave.

       Note that Fmin = F / 2^(N / 2), or, F = Fmin *  2^(N  /  2)  permitting
       sequential scanning of the file, i.e., for any frequency record:

           Input the record, the frequency in this record is Fmin; calculate
           F = Fmin * 2^(N / 2).

           Average the amplitudes, Av, in the following records to Fmax = F *
           2^(N / 2).

           print F and Av.

       Or, simplifying:

           Input the record, the frequency in this record is Fmin; calculate
           F = Fmin * 2^(N / 2).

           Average the amplitudes, Av, in the following records to Fmax =
           Fmin * 2^N

           print F and Av.

OPTIONS
       -n N   N = fraction of an octave to smooth, 0 < N < 1, (0.333... = 1/3)

       -v     Print the version and copyright banner of the program.

       filename
              Input filename.

WARNINGS
       There is little or no provision for handling numerical exceptions.

SEE ALSO
       tsderivative(1),   tshcalc(1),   tshurst(1),  tsintegrate(1),  tslogre‐
       turns(1), tslsq(1),  tsnormal(1),  tsshannon(1),  tsblack(1),  tsbrown‐
       ian(1), tsdlogistic(1), tsfBm(1), tsfractional(1), tsgaussian(1), tsin‐
       tegers(1), tslogistic(1), tspink(1), tsunfairfractional(1), tswhite(1),
       tscoin(1),    tsunfairbrownian(1),    tsfraction(1),   tsshannonmax(1),
       tschangewager(1),   tssample(1),   tsrms(1),   tscoins(1),    tsavg(1),
       tsXsquared(1),  tsstockwager(1),  tsshannonwindow(1), tsmath(1), tsavg‐
       window(1),  tspole(1),  tsdft(1),  tsbinomial(1),   tsdeterministic(1),
       tsnumber(1),     tsrmswindow(1),     tsshannonstock(1),    tsmarket(1),
       tsstock(1), tsstatest(1), tsunfraction(1), tsshannonaggregate(1), tsin‐
       stant(1),   tsshannonvolume(1),  tsstocks(1),  tsshannonfundamental(1),
       tstrade(1),  tstradesim(1),  tsrunlength(1),  tsunshannon(1),   tsroot‐
       mean(1), tsrunmagnitude(1), tskurtosis(1), tskurtosiswindow(1), tsroot‐
       meanscale(1),    tsscalederivative(1),    tsgain(1),    tsgainwindow(1)
       tscauchy(1), tslognormal(1), tskalman(1), tsroot(1)

DIAGNOSTICS
       Error  messages for incompatible arguments, failure to allocate memory,
       inaccessible files, and opening and closing files.

AUTHORS
       ----------------------------------------------------------------------

       A license is hereby granted to reproduce this software source code and
       to create executable versions from this source code for personal,
       non-commercial use.  The copyright notice included with the software
       must be maintained in all copies produced.

       THIS PROGRAM IS PROVIDED "AS IS". THE AUTHOR PROVIDES NO WARRANTIES
       WHATSOEVER, EXPRESSED OR IMPLIED, INCLUDING WARRANTIES OF
       MERCHANTABILITY, TITLE, OR FITNESS FOR ANY PARTICULAR PURPOSE.  THE
       AUTHOR DOES NOT WARRANT THAT USE OF THIS PROGRAM DOES NOT INFRINGE THE
       INTELLECTUAL PROPERTY RIGHTS OF ANY THIRD PARTY IN ANY COUNTRY.

       Copyright (c) 1994-2018, John Conover, All Rights Reserved.

       Comments and/or bug reports should be addressed to:

           john@email.johncon.com (John Conover)

       ----------------------------------------------------------------------



                                April 12, 2018                      OSMOOTH(1)