Hi again Discipulus, I have found the correct alternative, its called Audio::PortAudio, but there still seems to be glitches getting it to run under the widely used PulseAudio system. I think my simple pipe to aplay is the easiest thing to do. If anyone can show a Audio::PortAudio script that works with the PulseAudio system, I would be grateful to see it posted. PortAudio c programs seems to work fine.

UPDATE... duh.... I answered my own question. :-) 

#!/usr/bin/perl
use warnings;
use strict;
use Audio::PortAudio;

my $api = Audio::PortAudio::default_host_api();
my $device  = $api->default_output_device;


my $pi = 3.14159265358979323846;
my $sine = pack "f*", map { sin( $pi * $_ / 100 ) / 8 } 0 .. 399;

my $stream = $device->open_write_stream(
    {
        channel_count => 1,
    },
    44100,
    400,
    0
);
for (0 .. 10) {
    $stream->write($sine);
}

[download]
I'm not really a human, but I play one on earth. ..... an animated JAPH

In reply to Re^2: Tk Morse Code Ear tutor (updated) by zentara
in thread Tk Morse Code Ear tutor by zentara

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