"If you add AUDIO_ENABLE = yes to your rules.mk, there's a couple different sounds that will automatically be enabled without any other configuration". i followed the docs and tried to trigger sound effects but with no success. things I did:


in rules.mk:
AUDIO_ENABLE = yes           # Audio output on port C6

in config.h:

#define VENDOR_ID       0xFEFD
#define PRODUCT_ID      0x9460
#define DEVICE_VER      0x0001
#define MANUFACTURER    Alltrons IT
#define PRODUCT         Knops Mini
#define DESCRIPTION     Advanced 3x2 macrokeyboard

#define C6_AUDIO
#define B6_AUDIO


in keymap.c:
float my_song[][2] = SONG(QWERTY_SOUND);


to make sure its enabled:

LAYOUT(
AU_ON,AU_OFF,KC_NO,KC_NO,TG(3),KC_NO),


to force an output:

void led_init_ports() {
PLAY_SONG(my_song);
...


to force play it during macro execution:

const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt) {
switch (id) {
case 0:
if (record->event.pressed) {
/*
* This is Macro 0
* Content:  tglhf<enter>
*/
        PLAY_SONG(my_song);
        return MACRO( D(LCTL), D(LALT), T(DOWN), U(LALT), U(LCTL), END );
}
break;


i tried different points to make sure its executed. do you have a working config?