When I run the sketches from the TMRpcm library, At first I hear a chirping sound, like any other DC noise, but only for a moment. Just after that, I hear the audio/song from the speaker, which is usual and clear.
Every time I run the arduino, the audio played later is always fine, but I get that sound at first seconds of every audio file. The sound is similar to a DC noise as I said, but only lasts for a moment.