adding notes on using the output, and putting back to stdout, instead of

writing to the /dev/audio

Makefile

@@ -1,13 +1,14 @@
 
 MUSIC_FILES := $(basename $(wildcard f*.c))
 TMP_FILES := $(wildcard *~) $(wildcard *.o)
-
+CFLAGS += 
+LDFLAGS += -static -s
 all: $(MUSIC_FILES)
 
 audio.o: audio.c audio.h
 
 %: %.c audio.o
-	$(CC) -static -s -o $@ $^
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^
 
 clean:
 	rm -rf $(MUSIC_FILES) $(TMP_FILES)

README

@@ -1,4 +1,11 @@
 to play these, just compile and run like:
 
-$> ./f1 | aplay
+  $> ./f1 > /dev/audio
+or (fancier)
+  $> ./f1 | aplay
+or (fanciest) (this way you can play with the rate)
+  $> ./f1 | play -r 8k -t raw -b 8 -c 1 -e signed -
+or (fanciester)
+  $> ./f1 | sox -r 8k -t raw -b 8 -c 1 -e signed - audio.mp3 # mp3 requires 8khz rate
+  $> play audio.mp3
 

audio.c

@@ -9,6 +9,7 @@ void init() {
 }
 
 void p(int i) {
-	fputc(i, audio);
+	//fputc(i, audio);
+	putchar(i);
 }
 

f1.c

@@ -1,7 +1,7 @@
 #include "audio.h"
 
 int main() {
-	init();
+	//init();
 	int t;
 	for (t = 0;;t++) {
 		p((t >> 6 | t | t >> (t >> 16)) * 10 + ((t >> 11) & 7));

f2.c

@@ -1,6 +1,6 @@
 #include "audio.h"
 int main(t){
-	init();
+	//init();
 	for(t=0;;t++) {
 		p(t*(((t>>12)|(t>>8))&(63&(t>>4))));
 	}

f3.c

@@ -1,6 +1,6 @@
 #include "audio.h"
 main(int t) {
-	init();
+	//init();
 	for(;;t++) {
 		p(t*9&t>>4|t*5&t>>7|t*3&t/1024);
 

f4.c

@@ -1,6 +1,6 @@
 #include "audio.h"
 int main(int t) {
-	init();
+	//init();
 	for (t = 0;;t++) {
 		int i;
 		i = (t>>7-(t>>15)&-t>>7-(t>>15));

f5.c

@@ -1,6 +1,6 @@
 #include "audio.h"
 main(t){
-	init();
+	//init();
 	for(t=0;;t++) {
 		p(((t*("36364689"[t>>13&7]&15))/12&128)+(((((t>>12)^(t>>12)-2)%11*t)/4|t>>13)&127));
 	}

f6.c

@@ -2,7 +2,7 @@
 main(t){
 	int y,x;
 
-	init();
+	//init();
 	for(t=0;;t++)
 	{
 		x=t*"6689"[t>>16&3]/24&127;