General question about Spectral Subtraction
Posted: Fri May 20, 2022 2:31 pm
Surrounding Noise Reduction (NR) and Noise Reduction 2 in Thetis. I've been reading a lot lately about Spectral Subtraction. Is this the process that is being utilized in Thetis for noise reduction? Simon Brown has stated that this is what he is using in SDR Console for noise reduction. When listening in SDR Console the Spectral Subtraction method sounds a lot what I hear in Thetis. If they are both using this method, it is being utilized much better in Thetis. It sounds better to me. The spectral artifacts, if they can be called that, are greatly reduced in Thetis. If I listen closely I can barely hear it. In SDR Console I have yet to reduce it to a level comparable to Thetis.
Under NR2, the noise in Thetis is almost imperceptible to me.
If this is not the process used in Thetis, then my discussion is moot. There are band conditions so bad in the early morning that I hear other people say it is too bad for acceptable communications. I can hear the noise there, but it is reduced greatly. I have no problems understanding anyone. NR2 in Thetis is so far not exceeded by any other SDR software I have come across.
Am I in the ballpark here?
Under NR2, the noise in Thetis is almost imperceptible to me.
If this is not the process used in Thetis, then my discussion is moot. There are band conditions so bad in the early morning that I hear other people say it is too bad for acceptable communications. I can hear the noise there, but it is reduced greatly. I have no problems understanding anyone. NR2 in Thetis is so far not exceeded by any other SDR software I have come across.
Am I in the ballpark here?