RB-ev3rt-hrp2-sdk/ev3rt-doc-c-api-en/ev3api__speaker_8h_source.html

 #pragma once


 ER ev3_speaker_set_volume(uint8_t volume);


 #define SOUND_MANUAL_STOP (-1)


 ER ev3_speaker_play_tone(uint16_t frequency, int32_t duration);


 ER ev3_speaker_play_file(const memfile_t *p_memfile, int32_t duration);


 ER ev3_speaker_stop();


 #define NOTE_C4  (261.63)

 #define NOTE_CS4 (277.18)

 #define NOTE_D4  (293.66)

 #define NOTE_DS4 (311.13)

 #define NOTE_E4  (329.63)

 #define NOTE_F4  (349.23)

 #define NOTE_FS4 (369.99)

 #define NOTE_G4  (392.00)

 #define NOTE_GS4 (415.30)

 #define NOTE_A4  (440.00)

 #define NOTE_AS4 (466.16)

 #define NOTE_B4  (493.88)

 #define NOTE_C5  (523.25)

 #define NOTE_CS5 (554.37)

 #define NOTE_D5  (587.33)

 #define NOTE_DS5 (622.25)

 #define NOTE_E5  (659.25)

 #define NOTE_F5  (698.46)

 #define NOTE_FS5 (739.99)

 #define NOTE_G5  (783.99)

 #define NOTE_GS5 (830.61)

 #define NOTE_A5  (880.00)

 #define NOTE_AS5 (932.33)

 #define NOTE_B5  (987.77)

 #define NOTE_C6  (1046.50)

 #define NOTE_CS6 (1108.73)

 #define NOTE_D6  (1174.66)

 #define NOTE_DS6 (1244.51)

 #define NOTE_E6  (1318.51)

 #define NOTE_F6  (1396.91)

 #define NOTE_FS6 (1479.98)

 #define NOTE_G6  (1567.98)

 #define NOTE_GS6 (1661.22)

 #define NOTE_A6  (1760.00)

 #define NOTE_AS6 (1864.66)

 #define NOTE_B6  (1975.53)

 #define NOTE_C6  (1046.50)

 #define NOTE_CS6 (1108.73)

 #define NOTE_D6  (1174.66)

 #define NOTE_DS6 (1244.51)

 #define NOTE_E6  (1318.51)

 #define NOTE_F6  (1396.91)

 #define NOTE_FS6 (1479.98)

 #define NOTE_G6  (1567.98)

 #define NOTE_GS6 (1661.22)

 #define NOTE_A6  (1760.00)

 #define NOTE_AS6 (1864.66)

 #define NOTE_B6  (1975.53)


 #if 0 // Legacy code


 void ev3_power_off();


 #endif

ev3_speaker_set_volume
ER ev3_speaker_set_volume(uint8_t volume)
Set the volume level of speaker.
Definition: ev3api_speaker.c:12

ev3_speaker_play_tone
ER ev3_speaker_play_tone(uint16_t frequency, int32_t duration)
Play a tone. Any sound being played will be stopped by calling this function.
Definition: ev3api_speaker.c:16

memfile_t
A memory file is a file stored in RAM rather than on the SD card.
Definition: ev3api_fs.h:31

ev3_speaker_stop
ER ev3_speaker_stop()
The sound being played will be stopped by calling this function.
Definition: ev3api_speaker.c:25

ev3_speaker_play_file
ER ev3_speaker_play_file(const memfile_t *p_memfile, int32_t duration)
Play a WAV file stored in memory. Only 8-bit 8kHz mono WAV file is supported by now. Any sound being played will be stopped by calling this function.
Definition: ev3api_speaker.c:20