Strident describes both a high volume and a high pitch that can be unpleasant. The protestors' strident chants could be heard blocks away.
Pro Tip 2/3
Negative Emotion
The word 'strident' often implies irritation or discomfort caused by the sound. The debate got heated, with strident exchanges that upset the audience.
Pro Tip 3/3
Not Musical
'Strident' is rarely used for musical sounds, as it implies a lack of harmony. The violinist's strident notes during the rehearsal frustrated the conductor.