voip by web

[1] 12voip https://www.12voip.com

My favorite Music

Ludwig Van Beethoven
   Symphony No. 5 in C minor ("Fate") (composed 1804–08, premièred 1808)
   Sonata N° 14 'moonlight'
   Fur Elisa
   Himno de la alegria
   Turkish March  (Adapted by Chavo del 8 program, in intro)


Wolfgang Amadeus Mozart
  Turkish March
  Réquiem

Antonio Vivaldi
  Storm
  La Stravaganza  Four Season:Spring

Johan Sebastian Bach
 Toccata and Fugue Ave maria
  Passacaglia
Frédéric Chopin
  Waltz rain
  Spring waltz (Mariage d'Amour)

Antonín Dvořák
  Symphony no. 9 - 4th movement - Allegro con fuoco

C++ equivalent to getch() and getche() from conio.h

#include <iostream>
#include <termios.h> //TCSANOW, ICANON, ..
#include <unistd.h>  //STDIN_FILENO ..
#include <stdio.h>  //getchar

using namespace std;

char getch(void)
{
  struct termios oldattr, newattr;
  char ch;
  tcgetattr( STDIN_FILENO, &oldattr );
  newattr = oldattr;
  newattr.c_lflag &= ~( ICANON | ECHO );
  tcsetattr( STDIN_FILENO, TCSANOW, &newattr );
  ch = getchar();
  tcsetattr( STDIN_FILENO, TCSANOW, &oldattr );
  return ch;
}

char getche(void) //with ECHO
{
  struct termios oldattr, newattr;
  int ch;
  tcgetattr( STDIN_FILENO, &oldattr );
  newattr = oldattr;
  newattr.c_lflag &= ~( ICANON );
  tcsetattr( STDIN_FILENO, TCSANOW, &newattr );
  ch = getchar();
  tcsetattr( STDIN_FILENO, TCSANOW, &oldattr );
  return ch;
}

int main(int argc,char *argv[])
{
  char ch1=getch();
  char ch2=getche();
  cout << "\nFirst : " << ch1
       << "\nSecond: " << ch2 << endl;
  return 0;
}
//g++ getchx.cpp -o getchx

References
[1] https://www.daniweb.com/programming/software-development/threads/410155/gcc-equivalent-for-getch

Alternatives to shazam

[1] On web https://www.midomi.com
[2] Get song name from mp3 on web  http://audiotag.info
[3] Chrome plugin https://www.aha-music.com/

Deep Learning Lectures

References:
[1] Top ten papers https://www.techleer.com/articles/517-a-list-of-top-10-deep-learning-papers-the-2018-edition/

Printable Grid and Rulers Paper

Resources:
[1] Graph Paper, ready for print over A4 http://www.grassfedjp.com/print-grid-paper/
[2] Rulers http://leversetdujour.info/ruler-to-print.html

Alternatives to Google StreeView

References:

[1] https://www.mapillary.com/
[2] https://www.topbestalternatives.com/google-street-view/

Linux Microphone doesn't working

Try to reload drivers

$sudo alsa force-reload

restart device and check if sound is workin? if it doesnt do this:

$sudo apt-get remove --purge alsa-base pulseaudio
$sudo apt-get install alsa-base pulseaudio 

References:
[1] https://askubuntu.com/questions/508221/sound-input-device-microphone-not-working

Fedora/CentOS Change ports of Apache Web Server (httpd)

1) In file /etc/httpd/conf/httpd.conf

Listen 80
Listen 8079

This till your server to listen to the port 8079

2) virtual host file  /etc/httpd/conf.d/vhost.conf

<VirtualHost *:8079>
 DocumentRoot /var/www/html/api_folder
 ServerName example.com
 ServerAlias www.example.com
 ServerAdmin root@example.com 
 ErrorLog logs/www.example.com-error_log
 CustomLog logs/www.example.com-access_log common
</VirtualHost>

This mean when you go to your www.example.com:8079 redirect to
/var/www/html/api_folder

3) Restart the service

$sudo service httpd restart
$systemctl restart httpd.service

references:
[1] https://httpd.apache.org/docs/2.4/bind.html

Call using Internet (Brasil - Perú)

https://www.poptox.com/Peru
https://www.spytox.com/whose-number-is-calling-me