Hi. I’ve looked thourgh all 407 blogs in the recording section and none appear to address this noise removal problem I am seeing. I’ll do by best to explain it. Please help!!
I have many original recordings on cassette tapes. I have tried both V1.2.6 and 1.3.5beta. OS: Windows XP, PC is only 2 years old Dell. Using Hardware: SoundMax Integrated Digital Audio soundcard.
I record onto Audacity peak around -3db. noise/hiss is around -36 to -26db depending on recording.
I select a 1-2 second section of noise only, then using noise removal effect teach it the noise. So far so good.
Then I select the whole recording (~2minutes long) or even just a short section. no matter.
I use the noise removal feature. What I get is a digital noise slurry that comes through during the music in the background and it is faint. The non-music areas are perfectly silent which is good. If I adjust the noise removal to its least (Less) position the digital smagma is worse and can be easily heard even in the silent areas. If the noise removal is selected at most (More) it actually changes the tones of the instruments.
I wish I had a better example of this digital noise introduction but I don’t. Audacity 1.3.5beta is able to get rid of the digital background mess introduced but the attack and delay and db settings at best give me a fuzzy woosh sound in and out of the music tones. This recording example is using an old Casio keyboard.
If the recording has pockets of distortion then this my be contributing and possibly the noise removal feature cannot handle peaks of gray distortion?
Any how, any suggestions would be greatly appreciated as I have wasted hours trying to figure this out. my settings are 44K, 32bit float, stereo mix, line in, 128 bit rate, WAV 16bit microsoft pcm, FFt=256 default. Playback and record set to Microsoft Soundmapper and Software Playthrough is checked “on”.
Thank you much!!!