Hi All, I’m exploring Sox for the purpose of reducing background noise from recordings of people speaking. For my project this will be required for a large number of files so being able to automate this task via the command line is a huge plus and it seems that Sox accommodates this. However, I’ve compared some initial experiments of what Sox’s Noisered can do to Audacity’s Noise Reduction effect and so far it seems that Audacity is perhaps a bit more effective. That said, I still need to play around with Sox more before I can draw any conclusions. I’ve looked online and in the mailing list archives and haven’t been able to find any documentation/explanations of what exactly Sox’s Noisered algorithm is doing….does anyone have an understanding of this, or have a reference that they could please refer me to? I’m assuming that it’s some version of spectral subtraction of course, but the devil is in the details and it would be great to be able to understand what Sox is doing beyond just a high-level description. Any help would be greatly appreciated! Thank you. Best, Michael |
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