Spectral noise transformation in a quantisation processes. Noise is “colourised” in the time domain an/or frequency domain by adding parts of the previous sample. The SNR bandwidth and SNR time integral stay the same, so some noise decreases, some increases, but overall noise always increases.
An example of noise shaping in the frequency domain is quantisation of samples on a Compact Disc to reduce noise below -98 dB. The are different algorithms with slightly different filters, e.g. Super Bitmapping, 4D Recording.
A time domain example is MPEG-4 AAC TNS, which is a method to enhance quality by temporal forming of the noise in a transform block.
noun, Electronics. 1. (def 8). 2. .
[nwah-zet; French nwa-zet] /nwɑˈzɛt; French nwaˈzɛt/ noun, plural noisettes [nwah-zets; French nwa-zet] /nwɑˈzɛts; French nwaˈzɛt/ (Show IPA) 1. a loin, fillet, or other lean section of meat: an entrée of lamb noisettes. /nwɑːˈzɛt/ adjective 1. flavoured or made with hazelnuts noun 2. a small round boneless slice of lamb from the fillet or leg 3. […]
[nwah-zet] /nwɑˈzɛt/ noun 1. a hybrid climbing rose, Rosa noisettiana, bearing clusters of fragrant yellow, white, or pink flowers.
[noi-zee] /ˈnɔɪ zi/ adjective, noisier, noisiest. 1. making much : noisy children. 2. abounding in or full of : a noisy assembly hall. 3. characterized by much : a noisy celebration; a noisy protest. /ˈnɔɪzɪ/ adjective noisier, noisiest 1. making a loud or constant noise 2. full of or characterized by noise adj. 1690s, “making […]