Play a sound, any sound

Question

Your program has to make the computer produce a sound, any sound.

Shortest code wins, not sooner than 10 days after the first valid answer. If there is a tie, the one submitted sooner, wins.

• The program should run on a reasonable, not too uncommon personal computer.
• Opening a pop-up, message box, etc. (for example, on a web page) does not count, as they might or might not produce a sound, depending on a lot of settings.
• Just entering a wrong command or invalid character on a console and receiving a warning beep does not count, just as the compiler/interpreter/OS beeping on an error or crash does not count either. Your code must be a valid program.

Answer 1

dc, 2 chars

this one prints the bell character, too:

7P

Run with $ dc <<< 7P or save 7P to file and run $ dc file.

Also:

Befunge, 2 chars

Similar but infinitly looping and beeping:

7,

Answer 2

bash (13)

sudo rm -rf /

The faster the hard drive the better the sound. Don't work with SSDs.
(Don't try this at home, sudo rm -rf / erases everything on your hard drive)

Answer 3

*sh (5)

eject

(does not work if you have no CD/DVD or similar drive..)

Answer 4

Befunge, 0

If I read the spec correctly, this is an endless loop.
Endless loop = you'll hear your CPU cooler spin up.

Answer 5

sh 7

w|aplay

Plays a short noise.

Also 7:

aplay *

Assembly

Another non-bell solution. Resulting binary is just 15 bytes.

mov al, 182
out 43h, al
out 42h, al
mov al, 16
out 42h, al
mov al, 3
out 61h, al
ret

Assemble with nasm sound.asm -o sound.com. Can be tried with dosbox sound.com.

Answer 6

brainfuck: 8

+++++++.

Prints the bell character.

Answer 7

bash (Mac OS X) 5

say a

although stylistically I prefer the somewhat longer:

say 'Hello, Code Golf !'

Answer 8

Haha, good ol' QBASIC code.

BEEP

Answer 9

Python 3.3.3, one character

<bell character>

The error message will contain a bell character, causing the sound.

Python 3.3.3, 10 characters

If errors are not allowed, this solution won't output the error message, only the sound.

print('<bell character>')

Answer 10

Golfscript 3

'.'

(where the . is in fact a BELL character)

The HEX representation of the above code is:

27 07 27

Answer 11

Java - 222

Enough of this bell character or predefined beep function stuff, this makes a real sound :)

import javax.sound.sampled.*;class S{static{try{SourceDataLine
l=AudioSystem.getSourceDataLine(new
AudioFormat(4000,8,1,0<1,0>1));l.open();l.start();for(byte
i=9;i!=0;i+=9)l.write(new byte[]{i},0,1);}catch(Exception e){}}}

Answer 12

DOS Prompt / DOS Script

a:

Requires 3.5" floppy drive :)

Answer 13

Pascal: 30 characters

uses Crt;begin
Sound(999)
end.

This takes advantage of the lack of any rule regarding the sound's duration. So just turns on the speaker on 999 Hz and lets it so. (At least until another program calls Nosound or the computer is turned off.)

Answer 14

J (2)

a.

This prints all the characters from 0 to 255, that includes the bell.

If I have to do it without printing anything else, it's 4 characters:

7{a.

Answer 15

Bash, 22

Back in the 90's, my brother taught me this one -- to be used in a computer lab where one has remote access and knows a person to be alone in said lab. Kids these days won't know what a computer lab is... but oh well.

cd /dev;cat sda1>audio

Answer 16

Mathematica 6

This will evoke the system beep. On my computer, it is currently a chirp.

Beep[]

Answer 17

cat/type/PHP 1

This is actually polyglot. It runs in cat (or Microsoft Cat called type) and PHP.

$ xxd file
0000000: 07                                       .

Execution:

$ xxd -r > file
0000000: 07                                       .
^D
$ cat file # cat could be replaced with type (on Windows) or with php

Answer 18

brainfuck, 5 bytes

+[.+]

prints all chars including bell

Answer 19

Ruby, 7

$><<?\a

Tested on Windows with Ruby 1.9.3.

Answer 20

DOS, 5

Indirect, requires user cooperation.

pause

Answer 21

PowerShell, 24 17

Since nobody has posted this version yet:

[console]::beep()

UPDATE: Removed frequencies so it uses the default frequency and duration (MSDN says the default is 800 hertz and 200 milliseconds)

Answer 22

R 9

The bell character

cat("\a")

Answer 23

Python 9 chars

---

produces beep sound when executed.

print'\a'

Answer 24

Applescript (4 Characters)

beep

This will play the default beep sound of OS X.

Answer 25

top & aplay - 9

top has rhythm!

top|aplay

The periodic display sometimes does not feed the sound sink fast enough but aplay continues after grouching a bit... :-)

...this will run on many Linuxes...

Bonus:

While running this, type "s 1 ENTER" to get more beats per second. :-)

Party on!!! \o/

Answer 26

Mathematica 7

Using Mathematica's built in text to speech capability.

Speak@x

Will make it say "x"

Answer 27

Tcl, 1 char

-

replace - with the bell char.
It will print the bell char as part of the error message. Twice.

And if you think this is not a valid program, add this before the bell char:

proc \007 {} {};

It is a valid program, I just did not define the command, because I like the error message.

Answer 28

C: 19

main(){puts("\a");}

edit: header file is not needed for "puts"

Answer 29

><> 3

As in all answers, prints the bell (0x07) to stdout.

7o;

Answer 30

Bash, 26

Standard unix (not modern linux, sadly, unless you have alsa-oss installed; the BSDs are fine):

cat /dev/random > /dev/dsp

Answer 31

Scala: 44

java.awt.Toolkit.getDefaultToolkit().beep();

same as @nrubin29's answer, but shorter

Answer 32

GolfScript (3)

Since everyone else is doing this anyway:

'^G'

where ^G is the bell character.

Hex dump:

0000000: 2707 27                                  '.'

Answer 33

Linux shell (6 characters)

This requires a correctly configured analog modem (you also might need to run it as root):

wvdial

Answer 34

Ruby 8

 puts"\a"

Tested on Windows with Ruby 1.9.3.

Answer 35

ATARI BASIC (4 chars)

?"E"

(? is short for "print". E is in fact the "escape" symbol; see http://raster.infos.cz/atari/chars/atascii.htm, item 1B. Printing this symbol would make a characteristic noise.)

Answer 36

PowerShell, 3

'^G'

Of course, the ^G has to be entered manually, or written to a file with another script, like the following:

"'$([char]7)'"|Set-Content beep.ps1

Answer 37

VBScript

CreateObject("SAPI.SpVoice").speak "a"

Nice thing about this is you can make it say anything you want.

Answer 38

Windows Command Promt

logoff

Indeed, this makes an OS sound but it is not OS beeping on an error or crash.

Answer 39

Matlab UNTESTED (1)

␇

I am not sure whether this works in matlab, as I don't have sound available, but ␇ is in fact a single character. Hence calling or printing it may produce the desired effect in some languages.

Matlab verified (4)

beep

Answer 40

Windows batch script, 14

sort %comspec%

%comspec% just points to C:\Windows\System32\cmd.exe, and calling sort will find the bell character at some point in cmd's binary.

Answer 41

Batch, 16

type sethc.exe

I discovered this. When I do this, I'll get the 'BEEP' sound from reading the < BELL > character.

Answer 42

JavaScript - 99 103

Audio
  ("data:audio;base64,UklGRgWsAABXQVZFZm10IBAAAAABAAEARKwAAESsAAABAAgAZGF0YeGrAACAbebe")
.play();

*chirp* (in firefox, it is definitely a chirp)

Answer 43

Java: 103

public class S {
    public static void main(String[] a) {
        java.awt.Toolkit.getDefaultToolkit().beep();
    }
}

Answer 44

JS, 117

new Audio('data:audio/wav;base64,UklGRl9vT19XQVZFZm10IBAAAAABAAEAQB8AAEAfAAABAAgAZGF0YU'+Array(1e3).join(123)).play()

Answer 45

QBASIC (8)

PLAY "A"

---

Body must be at least 30 characters; you entered 19.

ಠ_ಠ

Answer 46

Python3 34

Any of the python versions printing the bell character to stdout was working for me, so here it is one using the standard libarary, in Windows:

import winsound as w;w.Beep(99,99)

The semicolon could be replaced with a newline, but looks cooler this way :)

Answer 47

Powershell, 4

"`a"

Sends a beep signal to the computer's speaker.

Answer 48

OS X Command Line

say a

This causes the computer to say the letter 'A'

Answer 49

Visual Basic 6

beep

VB 6, good times.

Answer 50

C 23

Make a beep sound.

int main(){putchar(7);}

Answer 51

Debianish solution, works on some other systems too - 9 chars

aplay /i*

...will play the files /initrd.img and initrd.img.old which are symlinks to some system startup ramdisks in directory /boot.

If you prefer the sound of kernels, try...

aplay /v*

...and look yourself why it works or fails on your system.

I got...

$ LANG=C ls -l / | grep ^[^d]
total 88
lrwxrwxrwx   1 root root    36 Dec 15  2012 initrd.img -> /boot/initrd.img-3.2.0-0.bpo.4-amd64
lrwxrwxrwx   1 root root    30 Dec  9  2012 initrd.img.old -> boot/initrd.img-2.6.32-5-amd64
lrwxrwxrwx   1 root root     4 Dec  9  2012 lib64 -> /lib
lrwxrwxrwx   1 root root    32 Dec 15  2012 vmlinuz -> boot/vmlinuz-3.2.0-0.bpo.4-amd64
lrwxrwxrwx   1 root root    27 Dec  9  2012 vmlinuz.old -> boot/vmlinuz-2.6.32-5-amd64

...here and that may or may not explain a lot to you and I demand the absence of solid facts and that I may or may not be called vroomfondel!

Answer 52

PHP (CLI): 1 byte

Source code as seen in Notepad++:

In the absence of <?php opening tag, source code is simply dumped to output.

Yeah, I know, another BEL answer, but still, tough to beat a single byte, especially in an interpreted language like PHP ;)

Answer 53

sh 6

echo .

(where the . is in fact a BELL character)

The HEX representation of the above code is:

65 63 68 6f 20 07

Answer 54

Autoit 6

Beep()

Although declaring a function would allow for less characters, not counting the declaration:

z()
Func z()
Beep()
EndFunc

Answer 55

Windows Command Script - 1 Byte

As most of the answers, this also uses the bell character.

0x07

Note: Must be run from console to work, since the sound needs some time to trigger.

Answer 56

Spoon, 13

1111111001010

Similarly to the BF solution, it prints the bell character.

Answer 57

C++ 45

#include<iostream>
int main(){std::cout<<'\a';}

Answer 58

Fortran 95, 18 chars

print*,char(7);end

Produces a bell sound

Answer 59

ZX Spectrum BASIC (3)

SAVE STR$ PI

It is only 3 bytes because BASIC keywords (with surrounding spaces) occupy single byte in ZX spectrum's memory. Here's its hex representation:

F8 C1 A7

This program saves current program to audio tape under the name "3.1415927" which is the string representation of π.

In fact it require 7 keypresses: S Caps+Symbol Y Caps+Symbol M

Answer 60

C#

System.Media.SystemSounds.Beep.Play();

It's long, but anyway...

Answer 61

R, 7

alert()

but sadly I think this is just a wrapper for printing the bell character.

Answer 62

In AppleScript ; 4 characters

beep

[ This is so short that my answer firstly did not reach the minimum length to be posted ! ]

Answer 63

Ruby, 8 chars

puts ?\a

><>, 2-3 chars

7o;

or with infinite loop:

7o

Answer 64

Autohotkey

I found my answer in the Documentation on the Autohotkey Docs.

SoundBeep

Answer 65

C#, 72 bytes

class Program{public void main(string[]args){System.Console.Beep(500);}}

Answer 66

k/Q (6 chars)

Bell character to stdout.

1"c"$7

Answer 67

C on linux

#include <fcntl.h>
#include <linux/cdrom.h>
#include <sys/ioctl.h>

int main() {
  ioctl(open("/dev/sdb", O_RDONLY), CDROMEJECT);
}

Opens the CD-ROM door.

You may need to change sdb to whatever your optical drive's device is.