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Full Discussion: Variable frequency audio generator...
Operating Systems OS X (Apple) Variable frequency audio generator... Post 302979799 by wisecracker on Friday 19th of August 2016 05:32:04 AM
Old 08-19-2016
Hi Corona688...

Files are not needed if you are using SOX and piping.
An ultra simple string piped into sox without the need for files at all...
But I am NOT using SOX here but the very, very limited afplay audio player for OSX.
afplay cannot replay raw files only a few basic formats of which .WAV is one.
Code:
#!/usr/local/bin/dash
square="    ~~~~"
for n in 1 2 3 4 5 6 7 8 9 10
do
	square=$square$square
done
echo "$square" | sox -b 8 -c 1 -e unsigned-integer -t raw -r 8000 - -d

Results:-
Code:
Last login: Fri Aug 19 10:08:28 on ttys000
AMIGA:barrywalker~> cd Desktop/Code/Shell
AMIGA:barrywalker~/Desktop/Code/Shell> chmod 755 sox_pipe.sh
AMIGA:barrywalker~/Desktop/Code/Shell> ./sox_pipe.sh

-: (raw)

  Encoding: Unsigned PCM  
  Channels: 1 @ 8-bit    
Samplerate: 8000Hz       
Replaygain: off         
  Duration: unknown      

In:0.00% 00:00:01.02 [00:00:00.00] Out:45.2k [======|======] Hd:1.3 Clip:0    
Done.
AMIGA:barrywalker~/Desktop/Code/Shell> _

Just change the sample speed inside SOX from 8000 to anything you like within limits.
 

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LEARN ABOUT SUSE

cpanplus::shell

CPANPLUS::Shell(3pm)					 Perl Programmers Reference Guide				      CPANPLUS::Shell(3pm)

NAME

       CPANPLUS::Shell

SYNOPSIS

	   use CPANPLUS::Shell; 	    # load the shell indicated by your
					    # config -- defaults to
					    # CPANPLUS::Shell::Default

	   use CPANPLUS::Shell qw[Classic]  # load CPANPLUS::Shell::Classic;

	   my $ui      = CPANPLUS::Shell->new();
	   my $name    = $ui->which;	    # Find out what shell you loaded

	   $ui->shell;			    # run the ui shell

DESCRIPTION

       This module is the generic loading (and base class) for all "CPANPLUS" shells. Through this module you can load any installed "CPANPLUS"
       shell.

       Just about all the functionality is provided by the shell that you have loaded, and not by this class (which merely functions as a generic
       loading class), so please consult the documentation of your shell of choice.

BUG REPORTS

       Please report bugs or other issues to <bug-cpanplus@rt.cpan.org<gt>.

AUTHOR

       This module by Jos Boumans <kane@cpan.org>.

COPYRIGHT

       The CPAN++ interface (of which this module is a part of) is copyright (c) 2001 - 2007, Jos Boumans <kane@cpan.org>. All rights reserved.

       This library is free software; you may redistribute and/or modify it under the same terms as Perl itself.

SEE ALSO

       CPANPLUS::Shell::Default, CPANPLUS::Shell::Classic, cpanp

perl v5.12.1							    2010-04-26						      CPANPLUS::Shell(3pm)
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