Discipulus' code simplified (UPDATE: and enhanced - it also SPEAKS the info using the voice): 
use strict;
use warnings;
use Data::Dumper;
use Win32::OLE qw(in);

GetVoiceInfo();

sub GetVoiceInfo{
  my $tts = Win32::OLE->new("Sapi.SpVoice") or die "Sapi.SpVoice faile
+d";
  
  for my $voice (in $tts->GetVoices){
    print "Found voice: ", $voice->GetDescription(), 
          "\n\tID:", $voice->Id(), "\n\n";
    $tts->{Voice} = $voice; # Sets the "Voice" PROPERTY
    $tts->Speak("I am the voice of " 
             . $voice->GetDescription());
  }
}

[download]
Output: 
Found voice: Microsoft David Desktop - English (United States)
        ID:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Speech\Voices\Tokens\
+TTS_MS_EN-US_DAVID_11.0

Found voice: Microsoft Zira Desktop - English (United States)
        ID:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Speech\Voices\Tokens\
+TTS_MS_EN-US_ZIRA_11.0

[download]

                "It's ten o'clock... Do you know where your AI programs are?"

In reply to Re: Win32::OLE get list of installed voices by NetWallah
in thread Win32::OLE get list of installed voices by Takamoto

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