Created
October 17, 2023 10:31
-
-
Save turbq/bfb26b7017740a2a2b5039cd8c886c99 to your computer and use it in GitHub Desktop.
Play doom theme through aplay without external files
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #Idea based on https://tldp.org/LDP/abs/html/devref1.html#MUSICSCR | |
| #default = 8000 frames per second, 8 bits per frame (1 byte), | |
| #1 channel (mono) | |
| duration=1000 # If 8000 bytes = 1 second, then 1000 = 1/8 second. | |
| volume=$'\xff' # Max volume = \xff (or \x00). | |
| mute=$'\x80' # No volume = \x80 (the middle). | |
| function mknote () # $1=Note Hz in bytes (e.g. A = 440Hz :: | |
| { #+ 8000 fps / 440 = 16 :: A = 16 bytes per second) | |
| for t in `seq 0 $2` | |
| do | |
| test $(( $t % $1 )) = 0 && echo -n $volume || echo -n $mute | |
| done | |
| } | |
| function mk2note () # here I'm trying several notes at one time | |
| { | |
| for t in `seq 0 $3` | |
| do | |
| test $(( $t % $1 )) = 0 && echo -n $volume || | |
| test $(( $t % $2 )) = 0 && echo -n $volume || echo -n $mute | |
| done | |
| } | |
| function mk4note () | |
| { | |
| for t in `seq 0 $5` | |
| do | |
| test $(( $t % $1 )) = 0 && echo -n $volume || | |
| test $(( $t % $2 )) = 0 && echo -n $volume || | |
| test $(( $t % $3 )) = 0 && echo -n $volume || | |
| test $(( $t % $4 )) = 0 && echo -n $volume || echo -n $mute | |
| done | |
| } | |
| #two notes at same time | |
| E2B2=`mk2note 97 65 $duration` | |
| E3B2=`mk2note 48 65 $duration` | |
| E3Fd3=`mk2note 48 43 $duration` | |
| Ad3E3=`mk2note 69 48 4000` | |
| Ad3F3=`mk2note 34 46 $duration` | |
| Ad3F3E3B2=`mk4note 34 46 48 65 4000` | |
| A3E4=`mk2note 36 24 $duration` | |
| C4G3=`mk2note 30 41 $duration` | |
| D4A3=`mk2note 27 36 $duration` | |
| E4B3=`mk2note 24 32 $duration` | |
| E2=`mknote 97 $duration` | |
| E3=`mknote 48 $duration` | |
| F3=`mknote 46 $duration` | |
| G3=`mknote 41 $duration` | |
| A3=`mknote 36 $duration` | |
| Ad3=`mknote 34 $duration` | |
| B3=`mknote 32 $duration` | |
| C4=`mknote 30 $duration` | |
| D4=`mknote 27 $duration` | |
| E4=`mknote 24 $duration` | |
| A4=`mknote 36 $duration` | |
| #short notes | |
| sDd4=`mknote 26 500` | |
| sE4=`mknote 24 500` | |
| sF4=`mknote 23 500` | |
| sG4=`mknote 20 500` | |
| sA4=`mknote 18 500` | |
| sB4=`mknote 16 500` | |
| #blank note | |
| n=`mknote 32767 $duration` | |
| echo -n "$E2$E3$E4$E3 $E3$D4$E3$E3 \ | |
| $C4$E3$E3$Ad3 $E3$E3$B3$C4 \ | |
| $E2$E3$E4$E3 $E3$D4$E3$E3 \ | |
| $C4$E3$E3$Ad3 $Ad3E3 \ | |
| $E2$E3$E4$E3 $E3$D4$E3$E3 \ | |
| $C4$E3$E3$Ad3 $E3$E3$B3$C4 \ | |
| $E2$E3$E4$E3 $E3$D4$E3$E3 \ | |
| $C4$E3$E3$Ad3 $Ad3E3 \ | |
| $E2B2$E3$E4B3$E3 $E3B2$A3E4$E3$E3B2 \ | |
| $C4G3$E3$E3B2$Ad3F3 $E3$E3B2$B3Fd3$C4G3 \ | |
| $E2$E3$E4B3$E3 $E3B2$D4A3$E3$E3B2 \ | |
| $C4G3$E3$E3B2$Ad3F3 $Ad3F3E3B2 \ | |
| $E2B2$E3$E4B3$E3 $E3B2$A3E4$E3$E3B2 \ | |
| $C4G3$E3$E3B2$Ad3F3 $E3$E3B2$B3Fd3$C4G3 \ | |
| $E2$E3$E4B3$E3 $E3B2$D4A3$E3$E3B2 \ | |
| $sF4$sE4$sDd4$sF4 $sA4$sG4$sF4$sDd4 $sF4$sG4$sA4$sB4 $sA4$sG4$sF4$sDd4\ | |
| " | aplay |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment