I have an existing application in C that needs to produce a beep. I tried using printf("\a") and printf("\7") but no sound is produced. Currently, I am using the following snippet:
#include <iostream>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <linux/kd.h>
int freq = 2000;
int ms = 1000;
int fd = open("/dev/console", O_WRONLY);
ioctl(fd, KIOCSOUND, (int)(1193180/freq));
usleep(1000*ms);
ioctl(fd, KIOCSOUND, 0);
close(fd);
Based on beep.c and several other forum answers. Still, it produces no sound.
I've also done the following steps (as per this post) to solve the problem to no avail:
Run gconf-editor and if the desktop | gnome | peripherals | keyboard | bell_mode setting is present then change it from off to on
Run dconf-editor and if the org | gnome | settings-daemon | peripherals | keyboard | bell-mode setting is present then change it from off to on
Add pactl upload-sample /usr/share/sounds/gnome/default/alerts/glass.ogg bell.ogg to the file ~/.xprofile (you need gnome-control-center-data for glass.ogg)
Add [ "$DISPLAY" ] && xset b 100 to the file ~/.bashrc
Also:
uncomment the following in /etc/pulse/default.pa:
load-sample-lazy x11-bell /usr/share/sounds/ubuntu/stereo/bell.ogg
load-module module-x11-bell sample=bell-windowing-system
I saw a separate thread with the alsamixer solution but there doesn't seem to be a 'PC Beep' option that I can see.
What else can I try to produce a beep from my C program?