However, depending on the context, you could use some synonyms that might have a slightly less negative spin:
* Singing (if the sound is actually musical, but just loud and powerful)
* Yelling (implies excitement or passion, but not necessarily unpleasant)
* Shouting (similar to yelling, can be seen as enthusiastic)
* Vocalizing (a more neutral term, could be used for any type of sound)
It's important to consider the specific situation and choose a synonym that best reflects the intended meaning.