To answer my own question, I now see that Goldwave noise reduction has many parameters that I don’t completely understand. Each one ends up influencing the results on Spek, so I’ll have to try different settings of Scale, Overlap, FFT size, etc., to make things work.
Using Spek to see if an audio file is really lossless after doing noise reduction.
I digitized several vinyl LP’s and couldn’t figure out why some FLAC files do not pass the Spek test for lossless. Then I saw that if I do noise reduction based on the vinyl noise between tracks, the Khz of the whole file drops and it looks like it’s not lossless anymore. Do I have to stop getting rid of vinyl noise to have a lossless file? The file sounds cleaner with the noise out but then it looks like an MP3 on Spek!
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I am a semi-professional audio restoration technician. I have for close to two decades used the following programs- iZotopeRx Advanced- unparalleled at removing static and impulsive disturbances, some quite gross in nature. Pristine Sounds 2005- great for spot-clean up Sound Forge- best all-round digital audio editor lets me perform magic on audio Acoustica Advanced- has a "remix" function that lets me dodge around some problems. |
I hear bright noises from speakers in below. Why the bright noise? Can you make it better? Similar noise on the left speaker below. https://youtu.be/IHf_FSa8amE?si=V9rQePsCBUEkBD8O Alex/Wavetouch audio |
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