Hi,
You can hear this hiss, thus it is in the audible frequency range.
If you supress this hiss, you need to suppress audible frequencies.
The hiss is in the high frequency range, so you need a low pass filter to reduce the noise.
The lower the cutoff frequency of the filter, the less hiss you will hear.
But you will the miss the high frequencies when listen to music.
Reducing the hiss means to reduce the audio frequency range = to reduce audio quality.
--> if you want good audio quality, you should look for a low noise amplifier.
LM383 is not a good amplifier and I think it is not produced now, for many years...
Why use such an outdated IC?
Klaus