https://dev.px4.io/master/en/advanced/system_tunes.html
Firmware/src/lib/tunes/tune_definition.desc
PX4_DEFINE_TUNE(0, CUSTOM, “”, true /* empty to align with the index /)
PX4_DEFINE_TUNE(1, STARTUP, “MFT240L8 O4aO5dc O4aO5dc O4aO5dc L16dcdcdcdc”, true / startup tune /)
PX4_DEFINE_TUNE(2, ERROR_TUNE, “MBT200a8a8a8PaaaP”, true / ERROR tone /)
PX4_DEFINE_TUNE(3, NOTIFY_POSITIVE, “MFT200e8a8a”, true / Notify Positive tone /)
PX4_DEFINE_TUNE(4, NOTIFY_NEUTRAL, “MFT200e8e”, true / Notify Neutral tone /)
PX4_DEFINE_TUNE(5, NOTIFY_NEGATIVE, “MFT200e8c8e8c8e8c8”, true / Notify Negative tone /)
PX4_DEFINE_TUNE(6, ARMING_WARNING, “MNT75L1O2G”, false / arming warning /)
PX4_DEFINE_TUNE(7, BATTERY_WARNING_SLOW, “MBNT100a8”, true / battery warning slow /)
PX4_DEFINE_TUNE(8, BATTERY_WARNING_FAST, “MBNT255a8a8a8a8a8a8a8a8a8a8a8a8a8a8a8a8”, true / battery warning fast /)
PX4_DEFINE_TUNE(9, GPS_WARNING, “MFT255L4AAAL1F#”, false / gps warning slow /)
PX4_DEFINE_TUNE(10, ARMING_FAILURE, “MFT255L4<<<BAP”, false / arming failure tune /)
PX4_DEFINE_TUNE(11, PARACHUTE_RELEASE, “MFT255L16agagagag”, false / parachute release /)
PX4_DEFINE_TUNE(12, EKF_WARNING, “MFT255L8ddd#d#eeff”, false / ekf warning /)
PX4_DEFINE_TUNE(13, BARO_WARNING, “MFT255L4gf#fed#d”, false / baro warning /)
PX4_DEFINE_TUNE(14, SINGLE_BEEP, “MFT100a8”, false / single beep /)
PX4_DEFINE_TUNE(15, HOME_SET, “MFT100L4>G#6A#6B#4”, false / home set tune /)
PX4_DEFINE_TUNE(16, SD_INIT, “MFAGPAG”, false / Make FS /)
PX4_DEFINE_TUNE(17, SD_ERROR, “MNBG”, false / format failed /)
PX4_DEFINE_TUNE(18, PROG_PX4IO, “MLL32CP8MB”, false / Program PX4IO /)
PX4_DEFINE_TUNE(19, PROG_PX4IO_OK, “MLL8CDE”, false / Program PX4IO success /)
PX4_DEFINE_TUNE(20, PROG_PX4IO_ERR, “ML<<CP4CP4CP4CP4CP4”, true / Program PX4IO fail */)
双引号里的即为曲调值
来源：CSDN
作者：xj231232
链接：https://blog.csdn.net/qq_38768959/article/details/103957740