Abstract: To realize a stereo signal processing apparatus which effectively removes vocal signals, without degradation of stereo effect, with a simple construction.

Abstract: A stereophonic signal processing apparatus, capable of reproducing sounds of musical instruments in high fidelity while effectively eliminating vocal signals, includes a right filter combination 121 and 122 for extracting a right low-frequency signal and a right high-frequency signal from a right input signal, a left filter combination 111 and 112 for extracting a left low-frequency signal and a left high-frequency signal from a left input signal, a subtraction circuit 131 for subtracting a right input signal and a left input signal and thereby generating a vocal elimination signal, a right addition circuit 123 for adding a right low-frequency signal and a right high-frequency signal from the right filter combination to a vocal elimination signal from the subtraction circuit and thereby generating a right output signal, a left addition circuit 113 for adding a left low-frequency signal and a left high-frequency signal from the left filter combination to a vocal elimination signal from the subtraction circuit

Abstract: A succession of music note data are provided. Those music note data which partially overlap in duration are corrected so that they completely overlap in duration. The corrected music note data are used for music navigation. As a result, the apparatus can properly guide a player to play chords or operate a plurality of keys at the same time.

Abstract: When a plurality of different effects are added to a plurality of musical notes at the same time, the plurality of musical notes are divided into a plurality of groups for musical notes, and the groups of musical note waveforms are delivered on a time divisional basis to an effect adding circuit, which adds the respective effects to the groups of musical note waveforms, accumulates at each waveform sampling period the musical note waveforms to which the respective effects have been added, and outputs a resulting musical note waveform. The sum of operation times required for adding the respective effects to the plurality of groups of musical note waveforms can exceed a sampling period depending on types of effect to be assigned. To avoid this situation, it is determined in advance whether the sum of the operation times required for adding the effects exceeds the sampling period. If so, addition of an effect to a musical note waveform where a depth of the effect is minimum is stopped.

Abstract: In the production of a laminated packaging material formed of a laminate comprising a base film, a silicon oxide layer and a sealing medium layer, the sealing medium layer is formed by laminating a thermoplastic resin to the silicon oxide layer by extrusion coating in a thickness of 30 .mu.m or less. At this time, in addition to the thermoplastic resin layer formed by extrusion coating, an additional thermoplastic resin film may be laminated to its outside so that they are put together to form a layer serving as the sealing medium layer. In this case, lamination is carried out to extrude a thermoplastic resin between the silicon oxide layer and the thermoplastic resin film in a layer thickness of 30 .mu.m or less.

Abstract: In a laminated packaging material including a substrate, a silicon oxide layer, an adhesive layer or anchor coat layer and a heat-sealable resin layer which are successively laminated, the adhesive layer or anchor coat layer is formed by coating a water-based adhesive composition or a water-based anchor coat agent composition, respectively, on the silicon oxide layer, followed by drying. On the anchor coat layer, a solvent-free adhesive layer may be provided. Also in a laminated packaging material including a substrate, a silicon oxide layer, an ink layer, an adhesive layer and a heat-sealable resin layer which are successively laminated, the ink layer is formed by coating a water-based ink composition on the silicon oxide layer, followed by drying. In this case, the adhesive layer may preferably be formed by coating a water-based adhesive composition on the ink layer, followed by drying.

Abstract: A sinterable aluminum nitride powder composition is prepared by adding about 0.05-10.0 parts by weight of at least one compound selected from the group consisting of calcium tungstate and calcium molybdate and optionally about 1.0-7.0 parts by weight of at least one compound selected from the group consisting of yttria, calcium oxide, and calcium carbonate to 100 parts by weight of an aluminum nitride powder prepared by the alumina reduction method without decarbonization and having a residual carbon content of about 2%-10% by weight. The resulting powdery composition is subjected to mixing and deagglomeration in a dry process so as to form a powder mixture having a bulk density of about 0.3-0.5 g/cm.sup.3, and then to decarbonization by heating in an oxidizing atmosphere. The aluminum nitride powder composition has a pressurized bulk density of about 1.50-1.75 g/cm.sup.3 as measured at a pressure of 500 kg/cm.sup.2 and an average particle diameter of about 1.0-3.0 .mu.

Abstract: A deproteinization filler comprises an aggregate of hydroxyapatite fibers having a three dimensional network structure. The mean radius of pores defined by the aggregate is approximately 0.02 .mu.m to approximately 0.08 .mu.m, the specific surface of the aggregate is approximately 25 m.sup.2 /g to approximately 65 m.sup.2 /g and the mean diameter of particles defined by the aggregate is approximately 1 .mu.m to approximately 30 .mu.m. The filler is produced by a given method. The filler may be contained in a throwaway cartridge.

Abstract: In an apparatus capable of generating a tone by a plurality of different tone generation processing modes, the respective tone generation processing modes are arbitrarily assigned in units of tone generation channels so as to efficiently utilize the tone generation channels. In particular, as one of the tone generation processing modes, a waveform readout processing such as a PCM method is used. As another processing mode, a tone generation processing mode for converting an output obtained by mixing a modulation signal in a carrier signal at an arbitrary ratio in accordance with a predetermined functional relationship to generate a tone signal is used. In this mode, when the mixing ratio is set to be a predetermined value, the tone signal has a sine or cosine wave. Various tones such as a tone including a single sine or cosine wave component, a tone including harmonic components of high orders, and the like can be widely synthesized, and can be desirably assigned to the tone generation channels.

Abstract: A musical sound waveform generator includes a carrier signal generating unit, a modulation signal generating unit, a mixing controlling unit and a waveform outputting unit. The characteristics of the carrier signal from the carrier signal generating unit are determined such that the musical sound waveform generated by the waveform outputting unit is a sine wave or a cosine wave with a single frequency, where the mixing ratio of the modulation signal is made O by the mixing controlling unit. Therefore, the mixing controlling unit presets the mixing ratio of the modulation signal to be O, making it possible to generate a musical sound waveform which is only a sine wave or a cosine wave of a single frequency. During the performance, the mixing ratio can, for example, be determined at a high value immediately after the start of sound generation and thereafter reduced to near O with time.

Abstract: A musical sound waveform generator includes a carrier signal generating unit, a modulation signal generating unit, a mixing controlling unit and a waveform outputting unit. The characteristics of the carrier signal from the carrier signal generating unit are determined such that the musical sound waveform generated by the waveform outputting unit is a sine wave or a cosine wave with a single frequency, where the mixing ratio of the modulation signal is made 0 by the mixing controlling unit. Therefore, the mixing controlling unit presets the mixing ratio of the modulation signal to be 0, making it possible to generate a musical sound waveform which is only a sine wave or a cosine wave of a single frequency. During the performance, the mixing ratio can, for example, be determined at a high value immediately after the start of sound generation and thereafter reduced to near 0 with time.

Abstract: A carrier signal generating unit generates a carrier signal. A modulation signal generating unit generates a modulation signal. A mixing controlling unit controls, in mixing the modulation signal with the carrier signal, a mixing ratio of the modulation signal to the carrier signal and outputs a mixed signal in which the modulation signal and the carrier signal are mixed in the controlled mixing ratio. A waveform outputting unit has a predetermined functional relation between its input and output and receives the mixed signal from the mixing controlling unit to provide a modulated musical sound waveform. In this case, the carrier signal and the modulation signal are set such that a desired musical sound waveform is obtained from the waveform outputting unit when the mixing ratio of the modulation signal to the carrier signal is controlled by the mixing controlling unit to a predetermined mixing ratio. And the present invention provides a method of setting the carrier signal and the modulation signal.

Abstract: A tuning apparatus comprises a piezoelectric element provided on a tuner case, and a mounting member which enable the tuning apparatus to be mounted on a musical instrument to be tuned. The piezoelectric element converts vibration provided by the musical instrument through the tuner case into an electric signal, and outputs the electric signal to a pitch calculation circuit. The tuning apparatus prevents the detection error due to a harmonic component having a larger amplitude than that of fundamental wave component by making the resonance frequency of the tuner case lower than the frequency of the lowest note of the musical instrument to be tuned.

Abstract: A plurality of different kinds of rhythm playing pattern data corresponding to each of the different rhythm sounds being used to play specified rhythms is stored in a rhythm pattern memory section (1). When a particular kind of rhythm is being played automatically, one particular kind of rhythm is selectively designated from a plurality of kinds of rhythms by the operation of the rhythm kind selecting unit (21f). Then, a particular kind of rhythm playing pattern data corresponding to the selected particular kind of rhythm is selected from a plurality of kinds of rhythm playing pattern data preset in the rhythm pattern memory section (1) corresponding to each of the rhythm sounds by the operation of the pattern selection section (2,21,21a-21e).