63results about How to "Reduce quality degradation" patented technology

The present technique relates to a sound processing apparatus, a method, and a program capable of alleviating degradation of the quality of sound in a case where the gain of a sound signal is amplified.When equalizer processing for adjusting the gain of each frequency band of an input signal on the basis of a gain setting value is performed, an input signal is attenuated by an input attenuation amount derived from the gain setting value, and the equalizer processing is performed on the input signal attenuated. The amount of amplification of the gain of the input signal in the equalizer processing is estimated on the basis of the gain setting value and a weight coefficient of each frequency band derived from a generally-available music signal prepared in advance, and a difference of the estimation value and the input attenuation amount is calculated as a gain correction amount. Further, nonlinear amplification processing is performed on the input signal so as to actually amplify the input signal, which has been subjected to the equalizer processing, by a gain correction amount, and an output signal is obtained. The present technique can be applied to a sound processing apparatus.

Systems, methods, and program product to synthesize a grass-roots heat exchanger network for a plurality of hot process streams to be cooled and a plurality of cold process streams to be heated according to a plurality of utilities targets, are provided. An exemplary system includes a heat exchange network synthesizing computer and heat exchange network synthesizing program product configured to analyze the waste heat recovery problem without decomposition to produce a result having an optimal number of network heat exchanger units through application of advanced process-to-process matching schemes for both non-constrained and non-thermodynamically constrained problems.

There is provided an ink-jet recording apparatus including: a first transporting portion provided in a first transport path; a support member configured to support the sheet; a recording portion; a plurality of contact portions configured to come into contact with the sheet; a plurality of support ribs; a second transporting portion provided in a second transport path connected with the first transport path; and a third transporting portion configured to sandwich and transport the sheet in the first transporting direction or toward the second transport path. On the upstream side to the second transporting portion in the second transporting direction, a projecting portion is formed with the upper guide member to project toward the lower guide member below a virtual line linking a nip position of the sheet due to the third transporting portion with another nip position of the sheet due to the second transporting portion.

Systems, methods, and program product to synthesize a grass-roots heat exchanger network for non-thermodynamically constrained problems for a plurality of hot process streams to be cooled and a plurality of cold process streams to be heated according to a plurality of utilities targets, are provided. An exemplary system includes a heat exchange network synthesizing computer and heat exchange network synthesizing program product configured to analyze the waste heat recovery problem without decomposition to produce a result having an optimal number of network heat exchanger units through application of advanced process-to-process matching schemes for non-thermodynamically constrained problems.

The present disclosure is directed to streaming a video from a sending endpoint to a receiving endpoint. Both of the sending endpoint and the receiving endpoint have multiple communication channels connecting the sending endpoint and the receiving endpoint to one or more networks, respectively, and the streaming video includes a plurality of intra-frame coded frames and a plurality of inter-frame coded frames. The sending endpoint sends different ones of the plurality of intra-frame coded frames and different ones of high priority inter-frame coded frames to the receiving endpoint over more than one of the multiple communication channels having a connection-oriented protocol. In addition, the sending endpoint sends different ones of non-high priority inter-frame coded frames to the receiving endpoint over more than one of the multiple communication channels having a connectionless-oriented protocol.

A method and apparatus for concealing frame loss and an apparatus for transmitting and receiving a speech signal that are capable of reducing speech quality degradation caused by packet loss are provided. In the method, when loss of a current received frame occurs, a random excitation signal having the highest correlation with a periodic excitation signal (i.e., a pitch excitation signal) decoded from a previous frame received without loss is used as a noise excitation signal to recover an excitation signal of a current lost frame. Furthermore, a third, new attenuation constant (AS) is obtained by summing a first attenuation constant (NS) obtained based on the number of continuously lost frames and a second attenuation constant (PS) predicted in consideration of change in amplitude of previously received frames to adjust the amplitude of the recovered excitation signal for the current lost frame. Speech quality degradation caused by packet loss can be reduced for enhanced communication quality in a packet network environment with continuous frame loss.

An organic light-emitting display apparatus including emitting pixels including drivers for displaying gradation by making a light-emitting device selectively emit light according to a logic level of a data signal transmitted to each of the sub-fields forming a frame, and dummy pixels coupled to a repair line that is coupled to a light-emitting device of a first emitting pixel from among the plurality of the emitting pixels, wherein the dummy pixels include a first dummy driver for making the light-emitting device of the first emitting pixel emit light by charging the repair line when a data signal having a first logic level is transmitted, a second dummy driver for discharging the repair line when a data signal having a second logic level opposite to the first logic level is transmitted, and a boost capacitor coupled to the repair line and for controlling a charging / discharging speed of the repair line.