Limit at -3.4 db and you are done! Export to WAV (for archive) and export to MP3. Use the “Loudness Normalize” at “RMS” and set at -20 db. I’m assuming all recording is done using 32 bit floating point so we can get the best work out of our DAW. This tames most of the peaks almost inaudibly. I used to use the compressor, in audacity, threshold -20 at no more that 2:1 ratio. Listen and if you hear the slightest mechanical sound you’re using too much. Then I do use the NR but in the 666 recommendation, I may go to 8 db from 6 but no more than that. I get almost an instant 10 db better noise floor! There is no good reason not to since anywhere this audio will be played they will not reproduce 50-100 hz or lower anyway so just pull it out carefully. I use a gentler rolloff than the “filter curve” “low rolloff for speech” but that works very well. It’s got to be very quiet! I can’t overstate how important this is.įirst get rid of the very low stuff. That is the difference between 0db and -60 db. We are looking at a MINIMUM or 1/1000 difference between your voice and the room tone before processing. If the dog is breathing too hard give them a treat and get them out of the booth. If the PC\laptop is making noise, get it out of the booth. The MOST important thing in processing is to have the cleanest quietist noise floor possible before you do anything. Limiting and compression are the same thing really, just a difference in degree. To get to the -20 db we need to cleanly change the dynamic range. In my work I find one has to average no more than -28 to -25 to allow for peaks. Generally speech has a wide dynamic range, from quietist to loudest and we have a hard limit in recording to digital. I have been an audio\broadcast engineer for many years and have had the chance to play with many audio processors, you should play as well to learn how they can be made to work for your voice. There are macros but I think it might help to actually know what is happening instead of just one more thing to run. I see so many people that have problems with levels! It isn’t that hard truthfully.
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