Mechanical and Electrical Equipment for Buildings
... noise cancellation treat- ment is duct noise , which is low frequency , con- tinuous , and a plane wave . Figure 19.52 shows the construction of a typical commercial duct - noise- suppression unit , plus application photographs ...
Noise Reduction in Speech Applications
... noise background, etc). Analog systems cannot respond dynamically to changing conditions — they must be readjusted. DSP Noise Reduction in Automobiles ... noise cancellation reduces backpressure by up Hardware Design Considerations 75.
Headphone Buying Guide
Chand Kumawat. Noise-Cancelling. Headphones: Are. They. Worth. the. Investment? If you're in the market for a new pair of headphones, you've ... cancelling headphones is that Noise-Cancelling Headphones: Are They Worth the Investment?
Advanced Digital Signal Processing and Noise Reduction
Saeed V. Vaseghi. The simplest form of noise reduction is spectral subtraction which subtracts an estimate of the magnitude spectrum of the noise from that of the noisy signal. Spectral subtraction only requires an estimate of the average ...
Information Integration and Web Intelligence
... Noise cancelling . " The table shows that Product A has 10 positive reviews saying " Noise cancelling is excellent . " and 3 negative reviews saying “ Sound isolation is not good . " Similarly , for Product B , there are 2 positive ...
DDC Retrieval and Indexing Terminology
Defense Documentation Center (U.S.). NOISE LEVELS USE LEVEL ( QUANTITY ) and NOISE NOISE LIMITATION USE NOISE REDUCTION NOISE MEASUREMENT USE MEASUREMENT and NOISE NOISE MEASUREMENT FACILITY USE FACILITIES and MEASUREMENT NOISE MECHANISM ...
Manufacturing Systems and Industry Application
... cancelling processor . After processing a voice signal after noise reduction was generated and flowed into post amplifier to amplify and output . In Fig ... noise suppression Hardware structure. Advanced Materials Research Vol . 267 105.
Seismic Prospecting Instruments: Instrument performance and testing, by B. S. Evenden and D. R. Stone
... noise cancelling track is then added in the correct proportion to the outputs of all other demodulators to cancel the common noise which has been recorded with the data . A well - adjusted noise - cancelling system can improve the signal - ...
Telemarketing
... noise cancelling , compression voice switching ; choice of : telescopic , hinged boom noise cancelling , compression voice switching ; choice of : telescopic , hinged boom noise cancelling , compression voice switching ; choice of ...
Adaptive Signal Processing
Applications to Real-World Problems Yiteng Huang Jacob Benesty. Noise reduction performance ( dB ) 14 12- 10 8 6 4- 2 2 predicted reduction actual reduction 0 0 1 2 3 4 5 6 7 8 Frequency ( kHz ) Fig . 5.5 . Predicted and actual noise ...
Seismic Prospecting Instruments
... noise cancelling track is then added in the correct proportion to the outputs of all other demodulators to cancel the common noise which has been recorded with the data . A well - adjusted noise - cancelling system can improve the signal - ...
Audio Preservation
A Planning Study : Final Performance Report Associated Audio Archives. D Noise Noise Noise Noise Noise noise noise cancelling microphone noise cancelling microphones noise floor noise gate Noise Gate noise gate noise generator noise ...
Active Noise Cancellation
... noise . A technique to overcome this problem is Active Noise Cancellation ( ANC ) , which utilizes an elect acoustic system to cancel the primary unwanted noise by introducing a canceling “ anti - noise ” of equal amplitude but ...
Proceedings of the ... IEEE International Conference on Fuzzy Systems
... Noise Cancellation Hee - Kyoung Park and Seong - Gon Kong Department of Electrical Engineering Soongsil University ... cancelling noise in a duct . Adaptive noise cancelling system generates control sound pressure with same ...
Noise/news International
... noise cancelling headset . TM The NoiseBuster headset uses NCT's active noise cancellation technol- ogy to reduce a variety of annoying noises such as those generated by lawn mowers , leaf blowers , and vacuum cleaners , as well as ...
ICASSP-94
... NOISE CANCELLING FILTER FOR THE DIGITAL HOLTER MONITORING SYSTEM Shogo Nakamura Tokyo Denki University , Kanda - nisiki - cyo , Chiyoda - ku , JAPAN IІ - 217 SW Figure 3. Configuration of noise cancelling filter . CIC. Takashi Kohama ...
Railway Signaling and Communications
... noise over the other receiver . The latter equipment has the advantage of not causing switch- ing breaks in service and actually produces up to 3 db im- provement in signal - to - noise when the signals are equal . If frequency ...
Proceedings of the Twenty-first Midwest Symposium on Circuits and Systems
... noise cancelling filter is applied to the same data . The filter was allowed six adaptive weights , i.e. , requiring ... noise suppression is achieved , as can be seen in the plot of Figure 5 ( c ) . For the same rate of ...
Hearing Instrument Technology for the Hearing Healthcare Professional
... estimate of the useful speech signal alone . ( Courtesy of Phonak AG . ) The essence of the noise - reduction techniques above lies DIGITAL HEARING INSTRUMENTS 95 Noise Cancellers Noise Cancelling Using a Single Microphone.
1997 IEEE International Conference on Acoustics, Speech, and Signal Processing
April 21-24, 1997, Munich, Germany. NOISE CANCELLING FOR MICROPHONE ARRAYS Institute of Telecommunications and Electroacoustics Darmstadt University of Technology 64283 ... Noise Cancelling for Microphone Arrays J Meyer and C Sydow.