diff --git a/platforms/chibios/drivers/audio_pwm_hardware.c b/platforms/chibios/drivers/audio_pwm_hardware.c
index 1ba7ec13bcf..afa341abb60 100644
--- a/platforms/chibios/drivers/audio_pwm_hardware.c
+++ b/platforms/chibios/drivers/audio_pwm_hardware.c
@@ -41,18 +41,19 @@ static float channel_1_frequency = 0.0f;
 
 void channel_1_set_frequency(float freq) {
     channel_1_frequency = freq;
+    pwmcnt_t period;
+    pwmcnt_t width;
 
     if (freq <= 0.0) {
-        // a pause/rest has freq=0
-        return;
+        period = 2;
+        width  = 0;
+    } else {
+        period = (pwmCFG.frequency / freq);
+        width  = (pwmcnt_t)(((period) * (pwmcnt_t)((100 - note_timbre) * 100)) / (pwmcnt_t)(10000));
     }
-
-    pwmcnt_t period = (pwmCFG.frequency / freq);
     chSysLockFromISR();
     pwmChangePeriodI(&AUDIO_PWM_DRIVER, period);
-    pwmEnableChannelI(&AUDIO_PWM_DRIVER, AUDIO_PWM_CHANNEL - 1,
-                      // adjust the duty-cycle so that the output is for 'note_timbre' duration HIGH
-                      PWM_PERCENTAGE_TO_WIDTH(&AUDIO_PWM_DRIVER, (100 - note_timbre) * 100));
+    pwmEnableChannelI(&AUDIO_PWM_DRIVER, AUDIO_PWM_CHANNEL - 1, width);
     chSysUnlockFromISR();
 }
 
@@ -67,6 +68,9 @@ void channel_1_start(void) {
 
 void channel_1_stop(void) {
     pwmStop(&AUDIO_PWM_DRIVER);
+    pwmStart(&AUDIO_PWM_DRIVER, &pwmCFG);
+    pwmEnableChannel(&AUDIO_PWM_DRIVER, AUDIO_PWM_CHANNEL - 1, 0);
+    pwmStop(&AUDIO_PWM_DRIVER);
 }
 
 static virtual_timer_t audio_vt;
diff --git a/quantum/audio/audio.c b/quantum/audio/audio.c
index b2611c5f099..2cc3c2d6613 100644
--- a/quantum/audio/audio.c
+++ b/quantum/audio/audio.c
@@ -258,11 +258,10 @@ void audio_stop_tone(float pitch) {
         for (int i = AUDIO_TONE_STACKSIZE - 1; i >= 0; i--) {
             found = (tones[i].pitch == pitch);
             if (found) {
-                tones[i] = (musical_tone_t){.time_started = 0, .pitch = -1.0f, .duration = 0};
                 for (int j = i; (j < AUDIO_TONE_STACKSIZE - 1); j++) {
-                    tones[j]     = tones[j + 1];
-                    tones[j + 1] = (musical_tone_t){.time_started = 0, .pitch = -1.0f, .duration = 0};
+                    tones[j] = tones[j + 1];
                 }
+                tones[AUDIO_TONE_STACKSIZE - 1] = (musical_tone_t){.time_started = 0, .pitch = -1.0f, .duration = 0};
                 break;
             }
         }
diff --git a/quantum/rgb_matrix/animations/starlight_anim.h b/quantum/rgb_matrix/animations/starlight_anim.h
index 742e843b575..c4f943c5cef 100644
--- a/quantum/rgb_matrix/animations/starlight_anim.h
+++ b/quantum/rgb_matrix/animations/starlight_anim.h
@@ -2,7 +2,9 @@
 RGB_MATRIX_EFFECT(STARLIGHT)
 #    ifdef RGB_MATRIX_CUSTOM_EFFECT_IMPLS
 
-void set_starlight_color(uint8_t i, effect_params_t* params) {
+static void set_starlight_color(uint8_t i, effect_params_t* params) {
+    if (!HAS_ANY_FLAGS(g_led_config.flags[i], params->flags)) return;
+
     uint16_t time = scale16by8(g_rgb_timer, rgb_matrix_config.speed / 8);
     hsv_t    hsv  = rgb_matrix_config.hsv;
     hsv.v         = scale8(abs8(sin8(time) - 128) * 2, hsv.v);
@@ -11,21 +13,26 @@ void set_starlight_color(uint8_t i, effect_params_t* params) {
 }
 
 bool STARLIGHT(effect_params_t* params) {
-    if (!params->init) {
-        if (scale16by8(g_rgb_timer, qadd8(rgb_matrix_config.speed, 5)) % 5 == 0) {
-            uint8_t rand_led = random8_max(RGB_MATRIX_LED_COUNT);
-            set_starlight_color(rand_led, params);
-        }
-        return false;
+    static uint16_t index = RGB_MATRIX_LED_COUNT + 1;
+
+    // Periodic trigger for LED change
+    if ((params->iter == 0) && (scale16by8(g_rgb_timer, qadd8(rgb_matrix_config.speed, 5)) % 5 == 0)) {
+        index = random8_max(RGB_MATRIX_LED_COUNT);
     }
 
     RGB_MATRIX_USE_LIMITS(led_min, led_max);
-    for (uint8_t i = led_min; i < led_max; i++) {
-        RGB_MATRIX_TEST_LED_FLAGS();
-        set_starlight_color(i, params);
+    if (params->init) {
+        for (uint8_t i = led_min; i < led_max; i++) {
+            set_starlight_color(i, params);
+        }
+    }
+    // Change LED once and set index out of range till next trigger
+    else if (led_min <= index && index < led_max) {
+        set_starlight_color(index, params);
+        index = RGB_MATRIX_LED_COUNT + 1;
     }
     return rgb_matrix_check_finished_leds(led_max);
 }
 
 #    endif // RGB_MATRIX_CUSTOM_EFFECT_IMPLS
-#endif     // ENABLE_RGB_MATRIX_STARLIGHT
\ No newline at end of file
+#endif     // ENABLE_RGB_MATRIX_STARLIGHT
diff --git a/quantum/rgb_matrix/animations/starlight_dual_hue_anim.h b/quantum/rgb_matrix/animations/starlight_dual_hue_anim.h
index 50ce5d6ab47..276b8c3fdfc 100644
--- a/quantum/rgb_matrix/animations/starlight_dual_hue_anim.h
+++ b/quantum/rgb_matrix/animations/starlight_dual_hue_anim.h
@@ -2,31 +2,38 @@
 RGB_MATRIX_EFFECT(STARLIGHT_DUAL_HUE)
 #    ifdef RGB_MATRIX_CUSTOM_EFFECT_IMPLS
 
-void set_starlight_dual_hue_color(uint8_t i, effect_params_t* params) {
+static void set_starlight_dual_hue_color(uint8_t i, effect_params_t* params) {
+    if (!HAS_ANY_FLAGS(g_led_config.flags[i], params->flags)) return;
+
     uint16_t time = scale16by8(g_rgb_timer, rgb_matrix_config.speed / 8);
     hsv_t    hsv  = rgb_matrix_config.hsv;
     hsv.v         = scale8(abs8(sin8(time) - 128) * 2, hsv.v);
-    hsv.h         = hsv.h + random8_max((30 + 1 - -30) + -30);
+    hsv.h         = hsv.h + random8_max(31);
     rgb_t rgb     = rgb_matrix_hsv_to_rgb(hsv);
     rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
 }
 
 bool STARLIGHT_DUAL_HUE(effect_params_t* params) {
-    if (!params->init) {
-        if (scale16by8(g_rgb_timer, qadd8(rgb_matrix_config.speed, 5)) % 5 == 0) {
-            uint8_t rand_led = random8_max(RGB_MATRIX_LED_COUNT);
-            set_starlight_dual_hue_color(rand_led, params);
-        }
-        return false;
+    static uint16_t index = RGB_MATRIX_LED_COUNT + 1;
+
+    // Periodic trigger for LED change
+    if ((params->iter == 0) && (scale16by8(g_rgb_timer, qadd8(rgb_matrix_config.speed, 5)) % 5 == 0)) {
+        index = random8_max(RGB_MATRIX_LED_COUNT);
     }
 
     RGB_MATRIX_USE_LIMITS(led_min, led_max);
-    for (uint8_t i = led_min; i < led_max; i++) {
-        RGB_MATRIX_TEST_LED_FLAGS();
-        set_starlight_dual_hue_color(i, params);
+    if (params->init) {
+        for (uint8_t i = led_min; i < led_max; i++) {
+            set_starlight_dual_hue_color(i, params);
+        }
+    }
+    // Change LED once and set index out of range till next trigger
+    else if (led_min <= index && index < led_max) {
+        set_starlight_dual_hue_color(index, params);
+        index = RGB_MATRIX_LED_COUNT + 1;
     }
     return rgb_matrix_check_finished_leds(led_max);
 }
 
 #    endif // RGB_MATRIX_CUSTOM_EFFECT_IMPLS
-#endif     // ENABLE_RGB_MATRIX_STARLIGHT_DUAL_HUE
\ No newline at end of file
+#endif     // ENABLE_RGB_MATRIX_STARLIGHT_DUAL_HUE
diff --git a/quantum/rgb_matrix/animations/starlight_dual_sat_anim.h b/quantum/rgb_matrix/animations/starlight_dual_sat_anim.h
index 6def4eea098..e063658982a 100644
--- a/quantum/rgb_matrix/animations/starlight_dual_sat_anim.h
+++ b/quantum/rgb_matrix/animations/starlight_dual_sat_anim.h
@@ -2,31 +2,38 @@
 RGB_MATRIX_EFFECT(STARLIGHT_DUAL_SAT)
 #    ifdef RGB_MATRIX_CUSTOM_EFFECT_IMPLS
 
-void set_starlight_dual_sat_color(uint8_t i, effect_params_t* params) {
+static void set_starlight_dual_sat_color(uint8_t i, effect_params_t* params) {
+    if (!HAS_ANY_FLAGS(g_led_config.flags[i], params->flags)) return;
+
     uint16_t time = scale16by8(g_rgb_timer, rgb_matrix_config.speed / 8);
     hsv_t    hsv  = rgb_matrix_config.hsv;
     hsv.v         = scale8(abs8(sin8(time) - 128) * 2, hsv.v);
-    hsv.s         = hsv.s + random8_max((30 + 1 - -30) + -30);
+    hsv.s         = hsv.s + random8_max(31);
     rgb_t rgb     = rgb_matrix_hsv_to_rgb(hsv);
     rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
 }
 
 bool STARLIGHT_DUAL_SAT(effect_params_t* params) {
-    if (!params->init) {
-        if (scale16by8(g_rgb_timer, qadd8(rgb_matrix_config.speed, 5)) % 5 == 0) {
-            uint8_t rand_led = random8_max(RGB_MATRIX_LED_COUNT);
-            set_starlight_dual_sat_color(rand_led, params);
-        }
-        return false;
+    static uint16_t index = RGB_MATRIX_LED_COUNT + 1;
+
+    // Periodic trigger for LED change
+    if ((params->iter == 0) && (scale16by8(g_rgb_timer, qadd8(rgb_matrix_config.speed, 5)) % 5 == 0)) {
+        index = random8_max(RGB_MATRIX_LED_COUNT);
     }
 
     RGB_MATRIX_USE_LIMITS(led_min, led_max);
-    for (uint8_t i = led_min; i < led_max; i++) {
-        RGB_MATRIX_TEST_LED_FLAGS();
-        set_starlight_dual_sat_color(i, params);
+    if (params->init) {
+        for (uint8_t i = led_min; i < led_max; i++) {
+            set_starlight_dual_sat_color(i, params);
+        }
+    }
+    // Change LED once and set index out of range till next trigger
+    else if (led_min <= index && index < led_max) {
+        set_starlight_dual_sat_color(index, params);
+        index = RGB_MATRIX_LED_COUNT + 1;
     }
     return rgb_matrix_check_finished_leds(led_max);
 }
 
 #    endif // RGB_MATRIX_CUSTOM_EFFECT_IMPLS
-#endif     // ENABLE_RGB_MATRIX_STARLIGHT_DUAL_SAT
\ No newline at end of file
+#endif     // ENABLE_RGB_MATRIX_STARLIGHT_DUAL_SAT