thunderdantheman
Member level 4
This question is a subjective and I understand it is dependent on other factors, however, IÂ’m hoping for some guidelines or experienced knowledge.
With an audio circuit designed to drive a typical set of off-the-shelf headphones, what should the RMS (system generated) noise be limited to at the headphone output to ensure 'hiss' isn't noticed during silence periods? I understand all headphones will have different sensitivity, but is there a typical noise figure one should aim for at full gain to avoid the 'hiss'?
The audio is voice and the amplifier has approx. 16kHz bandwidth (10Hz - 16kHz).
With an audio circuit designed to drive a typical set of off-the-shelf headphones, what should the RMS (system generated) noise be limited to at the headphone output to ensure 'hiss' isn't noticed during silence periods? I understand all headphones will have different sensitivity, but is there a typical noise figure one should aim for at full gain to avoid the 'hiss'?
The audio is voice and the amplifier has approx. 16kHz bandwidth (10Hz - 16kHz).