feat: Massive OS expansion with IPC, Sound & TTS, Block layer, FAT32/ext2/sysfs, Signals, Syscalls, Modules, Drivers & 50+ LazyBox applets

sound/tts.c

@@ -0,0 +1,67 @@
+#include <sound/tts.h>
+#include <drivers/speaker.h>
+#include <arch/x86_64/pit.h>
+#include <kernel/printk.h>
+
+static const tts_phoneme_t phoneme_table[] = {
+    {{"a"}, 730,  1090, 120},
+    {{"b"}, 400,  800,  80},
+    {{"c"}, 600,  1400, 90},
+    {{"d"}, 450,  1600, 80},
+    {{"e"}, 530,  1840, 110},
+    {{"f"}, 300,  1200, 70},
+    {{"g"}, 420,  1300, 80},
+    {{"h"}, 350,  900,  60},
+    {{"i"}, 270,  2290, 100},
+    {{"j"}, 500,  1700, 90},
+    {{"k"}, 650,  1500, 80},
+    {{"l"}, 400,  1100, 90},
+    {{"m"}, 280,  900,  90},
+    {{"n"}, 300,  1400, 90},
+    {{"o"}, 570,  840,  120},
+    {{"p"}, 350,  700,  80},
+    {{"q"}, 600,  1300, 90},
+    {{"r"}, 450,  1200, 90},
+    {{"s"}, 700,  2000, 80},
+    {{"t"}, 500,  1800, 70},
+    {{"u"}, 440,  1020, 110},
+    {{"v"}, 350,  1100, 80},
+    {{"w"}, 320,  800,  90},
+    {{"x"}, 650,  1900, 80},
+    {{"y"}, 300,  2100, 100},
+    {{"z"}, 500,  1600, 80},
+    {{" "}, 0,    0,    60},
+    {{0},   0,    0,    0}
+};
+
+void tts_init(void) {
+    // Initialized
+}
+
+void tts_speak_letter(char c) {
+    if (c >= 'A' && c <= 'Z') c = (char)(c + ('a' - 'A'));
+
+    if (c == ' ' || c == ',' || c == '.' || c == '!') {
+        pit_sleep(80);
+        return;
+    }
+
+    for (int i = 0; phoneme_table[i].phoneme[0] != 0; i++) {
+        if (phoneme_table[i].phoneme[0] == c) {
+            uint32_t freq = phoneme_table[i].freq_f1;
+            uint32_t dur = phoneme_table[i].duration_ms;
+            if (freq > 0) {
+                speaker_beep(freq, dur);
+            }
+            return;
+        }
+    }
+}
+
+void tts_speak(const char* text) {
+    if (!text) return;
+    while (*text) {
+        tts_speak_letter(*text);
+        text++;
+    }
+}