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monus4444
Participant
February 16, 2020
Question

which is to be done first sound amplification or noise reduction

  • February 16, 2020
  • 1 reply
  • 1399 views

i am fearful that after noise reduction if i do amplification it will amplify the noise also. so first we should do amplification and than noise reduction? please help

1 reply

SteveG_AudioMasters_
Community Expert
SteveG_AudioMasters_Community Expert
Community Expert
February 16, 2020

Actually, that doesn't follow... if you amplify the signal, then yes, the noise will be amplified too - but the dynamic range will remain the same. Noise reduction will have the effect of increasing the dynamic range (the noise floor will be lower) and amplifying the signal afterwards will retain that; noise is a relative issue, not an absolute one.

 

Amplification doesn't affect noise as such - it's only about the signal level. The way that NR works means that it doesn't really matter whether you've amplified the signal first or not - except for one thing: if the signal is really quiet, then because you will have had to turn up the volume to listen to it, you'll hear additional system noise as well that isn't part of the signal. So your best bet, in terms of overall performance is to normalize your signal to about -1dB and then do the NR. The results will be the same, but it will be easier to monitor.

    M
    monus4444Author
    Participant
    February 17, 2020

    thank you very much for your instant reply.

    My last question is for MONO sound  match loudnes setting target loudness -19 LUFS, tolerance 0.5LU and max true peak lavel -1.5db is ok?

    Can you through some more light on tolerance, what is its impact, what should be its normal range.

    thank you

     

     

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