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With a full duplex sound card (capable of playing and recording simultaneously), it seems to me it should be feasible to implement noise cancellation in software on a PC. I would like to be able to listen to audio on my laptop and cancel out the sound of the truck parked outside my window.
Original article: Software Noise Cancellation
ME TOO!! I’m actually trying to find a product now that does that. Let me know if you know of one, or hell think of developing one!!!
Posted by: Richel on October 14, 2003 08:24 AM
Hey I am interested too. Any information would be appreciated!
Dave
Seems to me like you would all benefit greatly in buying ANR (active noise reducing) head phones. They work by producing reciprocal waves of incoming noise, thus cancelling it out. It works best for high pitch noises; they also use passive technology for lower sounds (which is more or less and ear plug). This technology has come a long way, which means excellent quality for a lower price. Bose currently offers the best for $$$. But, look around, I’m sure there is something in a reasonable price range.
Posted by: Greg on November 24, 2003 10:55 PMI would like to see a noise cancelling software that will cancel out the noise of my pc fans. The software could monitor fan noise and generate a filter which I would play through my sound card via a small sound system. (as opposed to ANR headphones / but same principle) This would help eliminate the need for quiet PC’s.
Posted by: Jackoheart on December 26, 2003 02:45 AMNoise cancelling sounds good to me. Can sleep well in the afternoon. Any information will be much appreciated. Thank`s
Posted by: Renault Ganda on January 3, 2004 01:07 PMI just tried making a noise cancelling program using LabVIEW, the problem is there is too much of a delay between the sound input and the inverted wave output. Using LabVIEW the delay is about a whole second.
Posted by: lazy on January 25, 2004 06:24 AMIt’s imposibble.To generate the “digital” sound wave in “realtime” ,you need the DSP not the CPU.
you can search the key word “DSP” and “cancel noise”.
The ANR headphones using the “Analog” circuits to reduce the noise, which can be realtime and much cheaper.
Posted by: Tom on February 6, 2004 02:49 AMwhat about using two soundcards?
Posted by: eromano on March 30, 2004 06:01 PMME TOO!! Iām actually trying to find a product now that does that. Let me know if you know of one, or hell think of developing one!!!!!!!!
Posted by: jo on June 22, 2004 03:17 PM