HydrogenAudio

Hydrogenaudio Forum => General Audio => Topic started by: soulburner on 2009-11-27 21:27:09

Title: Real-time noise reduction software?
Post by: soulburner on 2009-11-27 21:27:09
I was wondering, is there some software that automatically removes noise in real-time? Say, I connect my CB Radio to line-in, start an application and get rid of the background white noise  Or maybe the big audio editor suites can do that in real-time too, like Adobe Audition (I really liked its Adaptive Noise Reduction effect)?

Thanks in advance
Title: Real-time noise reduction software?
Post by: Iain on 2009-11-27 23:13:15
I was wondering, is there some software that automatically removes noise in real-time? Say, I connect my CB Radio to line-in, start an application and get rid of the background white noise  Or maybe the big audio editor suites can do that in real-time too, like Adobe Audition (I really liked its Adaptive Noise Reduction effect)?

Thanks in advance


I'm not sure you'd be able to get good noise reduction in real-time without latency issues. Noise reduction software typically looks at big chunks of samples, say 4096 (or more), at a time, so there is 4096 samples of latency (around 1/10th of a second with a 44.1kHz sampling rate.)
Title: Real-time noise reduction software?
Post by: soulburner on 2009-11-27 23:15:39
Such latency would be negligible with my use in mind...
Title: Real-time noise reduction software?
Post by: Iain on 2009-11-28 00:25:00
Such latency would be negligible with my use in mind...


I have just discoverd this Noise Reduction plug-in (http://www.savioursofsoul.de/Christian/vst-plugins/effect-plugins/#NoiseReduction). It looks like it is exactly what you are looking for.

You could use it with any VST hosting application. or you could use in a simple VST host like VSTHost (http://www.hermannseib.com/english/vsthost.htm).

Title: Real-time noise reduction software?
Post by: Xenion on 2009-11-28 00:43:39
http://www.digidesign.com/index.cfm?navid=...amp;itemid=1041 (http://www.digidesign.com/index.cfm?navid=115&itemid=1041)
runs also as AU plugin (TDM requires Pro Tools) but is rather expensive
Title: Real-time noise reduction software?
Post by: Notat on 2009-11-28 03:20:25
I think Cedar Audio (http://www.cedaraudio.com/) is still the technical leader in this field. I played with DNS3000 real-time noise suppressor at the AES show this fall. Magic audio shit (in a good way).
Title: Real-time noise reduction software?
Post by: Glenn Gundlach on 2009-11-28 06:18:06
I think Cedar Audio (http://www.cedaraudio.com/) is still the technical leader in this field. I played with DNS3000 real-time noise suppressor at the AES show this fall. Magic audio shit (in a good way).


We had a demo of Cedar Audio at work this last spring and it was truly impressive. But with a $30,000+ price tag, impressive should be in the description.