Will provide XIVMA with a direct download link since it's against their download policy to refer to a free mod where you need to register an account at. If you are interested to download it there, then here is the free ko-fi link: https://ko-fi.com/s/bf8c3ff0f7
The sound is registered under the Sound Effects volume settings in FF's System's Config options, if you want it lowered or increased. (this is the sound category for all mount sound effects)
Please take note, that you need the Kingly Peacock mount in order for this mod to work! Which is a mogstation mount!