Linux.com

If you are having trouble with tape hiss, denoising with the noise removal tool definitely can go a long way to getting rid of that noise. Although in my experience is is sometimes difficult to find that place where the sound hasn't started to alias (at which point you start to hear quiet high pitch tinkling... sort of) if you step the denoising down a little from there then you start to hear hiss. less hiss but hiss all the same. You can get rid of that hiss using a low pass filter. I know that this is going to affect quality and if your working with music you may find this really detracts from the end product. But if your working with just spoken word or low quality recordings sometimes using a low pass filter to get rid of the hiss makes for a more listen-able final product. Thanks for the article!

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