Not Noise Canceling!
by
Reverberant
·
· Score: 5, Informative
The "Babble" technology that is discussed in this article is not noise canceling technology! Noise canceling technology uses soundwaves that are 180 degrees out of phase with the original waveform to cancel out the original soundwave.
From the article description, Babble simply 'scrambles' sound waves so that speech is unintelligible, but it doesn't actually make anything quieter (in fact, based on the description it probably increases the ambient noise, just like masking systems). This device is used for speech privacy (which can be useful for meeting HIPAA regs for example), not sound cancellation.
If you want to make things quieter, you'll have to resort to earplugs, sound-canceling headphones, or floor-ceiling partitions (ie walls).
http://www.nytimes.com/2005/05/30/technology/30hil lis.html?ex=1275105600&en=4a1c68b85a47519f&ei=5090 &partner=rssuserland&emc=rss
Reg free link.
The "Babble" technology that is discussed in this article is not noise canceling technology! Noise canceling technology uses soundwaves that are 180 degrees out of phase with the original waveform to cancel out the original soundwave.
From the article description, Babble simply 'scrambles' sound waves so that speech is unintelligible, but it doesn't actually make anything quieter (in fact, based on the description it probably increases the ambient noise, just like masking systems). This device is used for speech privacy (which can be useful for meeting HIPAA regs for example), not sound cancellation.
If you want to make things quieter, you'll have to resort to earplugs, sound-canceling headphones, or floor-ceiling partitions (ie walls).