摘要:
Various embodiments of systems and methods for reducing audio noise are disclosed. One or more sound components such as noise and network tone can be detected based on power spectrum obtained from a time-domain signal. Results of such detection can be used to make decisions in determination of an adjustment spectrum that can be applied to the power spectrum. The adjusted spectrum can be transformed back into a time-domain signal that substantially removes undesirable noise(s) and/or accounts for known sound components such as the network tone.
摘要:
Various embodiments of systems and methods for reducing audio noise are disclosed. One or more sound components such as noise and network tone can be detected based on power spectrum obtained from a time-domain signal. Results of such detection can be used to make decisions in determination of an adjustment spectrum that can be applied to the power spectrum. The adjusted spectrum can be transformed back into a time-domain signal that substantially removes undesirable noise(s) and/or accounts for known sound components such as the network tone.
摘要:
A method and a corresponding system for assisting the passage of an entity (10) through successive zones (Zn to z1) to a destination (40) are provided. The method includes the steps of: associating an identifier with the entity; creating a plurality of required incidents for the entity, each required incident having a place reference and a time reference associated with it, the required incidents including a final incident for which the place reference is the destination and the time reference is a predetermined time; at intervals, detecting the presence of the entity in one of said zones and the time of said presence, thereby generating a match; registering correspondences between the matches thus-generated and said required incidents; and generating an alert for the entity when the time reference for a required incident is reached and that incident does not have a corresponding match. The method operates on a pull system whereby earlier events are driven by the requirements of future events. The method allows preventative action to be taken before delays occur and can adjust to deal with variations in local conditions. A preferred embodiment is implemented in a transport hub, where the entities may be passengers, crew or luggage.
摘要:
A method of incorporating fibriform smoke-modifying material in smoking material rod, wherein fibriform smoke-modifying material is fed longitudinally thereof to a rod making machine (1). The longitudinal feed path in the machine is in a travel direction of the smoking material deposition run of the suction band (3) of the machine. The fibriform material (13) is either constrained by guide means (15) in the machine to follow a feed path spaced from the run (31) of the suction band against the suction force towards the run or the feed path of the fibriform smoke-modifying material is caused to ascend toward the deposition run under the influence of the suction force towards the run, until at a predetermined distance along the deposition run the fibriform material becomes supported and is subsequently maintained at a predetermined distance from the run by particulate smoking material (20) deposited on the run. Thereafter further smoking material (20′) is deposited on the deposition run.
摘要:
Reproduction of stereophonic audio information over a single speaker requires summing multiple stereo channels. When signals having approximately equal magnitudes and approximately opposite phases at a frequency are added together, the audio information at the frequency is lost. To preserve areas of potential cancellation and potential audio information loss, the audio enhancement system adjusts the phase relationship between the stereophonic channels. To avoid the loss of the spatial content of the stereo signal, the audio enhancement system determines the difference information that exists between different stereophonic channels. The audio enhancement system enhances the difference information and mixes the enhanced difference information with the phase adjusted signals to generate an enhanced monophonic output.
摘要:
An acoustic correction apparatus processes a pair of left and right input signals to compensate for spatial distortion as a function of frequency when said input signals are reproduced through loudspeakers in a sound system. The sound-energy of the left and right input signals is separated and corrected in a first low-frequency range and a second high-frequency range. The resultant signals are recombined to create image-corrected audio signals having a desired sound-pressure response when reproduced by the loudspeakers in the sound system. The desired sound-pressure response creates an apparent sound image location with respect to a listener. The image-corrected signals can also be spatially-enhanced to broaden the apparent sound image and improve the low frequency characteristics of the sound when played on small loudspeakers.
摘要:
A smoking article, and a method and apparatus for producing a smoking article, in which a web material containing an adsorbent material such as activated carbon and a stabilised flavourant such as menthol is positioned adjacent an interior surface of a cigarette wrapper to deliver flavour to a smoker with minimal/insignificant migration of flavour to other parts of the smoking article or packaging. The web material may be a section that extends over only a portion of the smoking article to deliver flavour to a smoker at a specific point during smoking and if positioned at the mouth end of a smoking article will be able to deliver a flavour sensation in the final puff(s).
摘要:
A smoking article, and a method and apparatus for producing a smoking article, in which a web material containing an adsorbent material such as activated carbon and a stabilized flavorant such as menthol is positioned adjacent an interior surface of a cigarette wrapper to deliver flavor to a smoker with minimal/insignificant migration of flavor to other parts of the smoking article or packaging. The web material may be a section that extends over only a portion of the smoking article to deliver flavor to a smoker at a specific point during smoking and if positioned at the mouth end of a smoking article will be able to deliver a flavor sensation in the final puff(s).
摘要:
A data processing apparatus 2 is provided with multiple devices 4, 6, 8, 10. These devices generate parallel signals using a parallel signal protocol. A serialising circuit 26, 28, 30, 32, 34 captures a set of parallel signals, serialises them to form a serial stream of data and transmits this serial stream of data. A deserialising circuit 44, 46, 36, 38, 40, 42, 30, 26 at a destination device receives this serial stream of data, deserialises this serial stream of data to form a second set of parallel signals corresponding to the first set of parallel signals and then applies this second set of parallel signals to the destination device.