Abstract: In a method and a media system of/for generation of at least one output signal (HPL,HPR) from at least one input signal belonging to a second set of sound signals (M) having a related second set of Head Related Transfer Functions, in which the media system can be a TV, a CD player, a DVD player, a Radio, a display, an amplifier, a headphone or a VCR, the method includes the steps of determining, for each signal in the second set of sound signals, a weighted relation (14) including at least one signal belonging to a third set of intermediate sound signals (CHI1, CHI2) and at least one weight value (Weights); determining a first set of Head Related Transfer Functions (HRTFs) based on the second set of sound signals, the second set of Head Related Transfer Functions and the weighted relation; and transferring at least one signal belonging to the third set of intermediate sound signals by means of at least one HRTF belonging to said first set of Head Related Transfer Functions in order to generate at least one ou

Abstract: In a method and device for generating and/or displaying 3D images the depth of content (d) of an image or a part of an image is temporarily increased to a high level (h) where after the depth of content is decreased to a low level (1). This temporary increase of the depth of content renders a large 3D effect to the image or the part of the image to which it has been applied. It has been found that this enhancement effect of an increased 3D effect lingers on in the perception of the viewer even after application. The actual average depth of content can be made relatively low thus reducing fatigue, while the perceived depth of content is relatively high.

Abstract: In a method for canceling unwanted signals from at least one external sound source, such as a loudspeaker, by means of headphones provided with microphones, at least known sound signals from the at least one external sound source are compensated by anti-phase sound signals. These sound signals simulate the at least known sound signals from said at least one external sound source in anti-phase. Said anti-phase sound signals are generated in the headphones in response to signals derived from audio input signals of the at least one external sound source in a filter device which is controlled by the resulting microphone signals.

Abstract: To improve the reproduction of audio signals, the signal components of a selected audio frequency range (1) of an audio signal are concentrated in a narrower audio frequency range (II). This is achieved by detecting first signal components in the first audio frequency range (I), generating second signal components in the second audio frequency range (II), and controlling the amplitude of the second signal components in response to the amplitude of the first signal components. As a result, dedicated transducers may be used which are particularly efficient in the narrower frequency range. The original frequency range (I) may contain the lower frequency signal components (bass components) of the audio signal.

Abstract: Sound reproduction system, for example a hearing aid system, comprising:—a direction dependent sound detection system (1), comprising a number of sound detectors (2);—at least one sound generator (10) to reproduce sound, or part thereof, detected by the sound detection system (1); and—a sensitivity direction modifier (20), configured to modify a main sensitivity direction of the sound detection system (1) between at least a first and a second sensitivity direction. The invention also provides a method to reproduce sound, for example using a sound reproduction system, as well as a portable hearing aid system.

Abstract: A device is described, having a first (2) and a second (4) sound-generating means and an input for a stereo signal (S) comprising left (L) and right (R) sound signals. The device has an interconnected first (1) and second (3) part comprising a first (2) and a second (4) sound-generating means, respectively. The first part (1) is formed so as to couple soundwaves generated by the first sound-generating means (2) into a surface (6) when placed upon said surface (6), and the device has means (5) for sending a first signal (S1), which is a composite of the left (L) and right (R) sound signals, to the first sound-generating means (2) of the first part (1), and a second signal (S2), which is a different composite of the left (L) and right (R) sound signals, to the second sound generating means (4) of the second part (3).

Abstract: A scanning display apparatus (10) is described. The apparatus (10) includes a display (70) operable: (I) to receive driver signals and generate corresponding visual information for presentation on the display (70); and (ii) to sense radiation received at the display (70) and generating corresponding sensing signals corresponding to a region proximate to the display. The apparatus (10) also includes computer hardware (80) coupled to the display (70) for generating the one or more driver signals for the display (70) and for receiving the one or more sensing signals from the display (70), the computer hardware (80) being operable to provide an interactive user interface (ULI) at the display (70). The display (70) comprises an array of pixel devices (150), each such device (150) integrally being operable to emit radiation therefrom or transmit radiation therethrough, and also to sense radiation incident thereupon. Preferably, the pixel devices (150) are implemented in polyLEDs and/or LCD/TFT technologies.

Abstract: A display system (100) for displaying images from different data streams (1,2) simultaneously is described. Images corresponding to the first data stream (1) are shown to a first observer (106) in a vehicle and images corresponding to the second data stream (2) are shown to a second observer (108) in the vehicle. The display system (100) comprises: a display screen (102 for generating a first one of the images and a second one of the images; and an optical selection screen (104) for selectively passing the first one of the images in a first direction (101) towards the first observer (106) and passing the second one of the image second direction (103) towards the second observer (108). It is advantageously that the display screen (102) generates images both data streams (1,2).

Abstract: A processor (4) receives (I1,I2) a first audio and/or video input signal (A1, V1), and a second audio and/or video input signal (?2, V2, ?1b, ?1c, ?3, A5). A comparator (41) compares the fist audio or video input signal (A1, V1) and the second audio or video input signal (A2, V2; A1b, A1c, A3, A5), respectively, to detect a match between the first audio signal (A1) and the second audio signal (A2) or the first video signal (V1) and the second video signal (V2). A selector (42) supplies a selected signal ?S) which is the second audio or video input signal (A2, V2) if the match is detected or the first audio or video input signal (A1, V1) otherwise.

Abstract: The invention relates to a method of generating a left modified and a right modified audio signal for a stereo system from multichannel audio signals (XL, XR, XLS, XRS, and XC) with a left and a right channel and at least one further audio channel. According to the invention, the signal of the channel of highest energy is modified in a filter (1) with a transformation function in a first parallel branch (2) and is modified in a second filter (6) with a reverberation function in a second parallel branch (5), whereupon the modified signals are joined together in a summation unit (8).

Abstract: The invention relates to a method of generating a left modified and a right modified audio signal for a stereo system from multichannel audio signals (XL, XR, XLS, XRS, and XC) with a left and a right channel and at least one further audio channel. According to the invention, the signal of the channel of highest energy is modified in a filter (1) with a transformation function in a first parallel branch (2) and is modified in a second filter (6) with a reverberation function in a second parallel branch (5), whereupon the modified signals are joined together in a summation unit (8).

Abstract: The invention relates to a method of reproducing multichannel audio sound via several real and at least one virtual speaker (2, 3, 4, 5, 6, 9, and 10). According to the invention, the audio sound envisaged for a real speaker (2, 3, 4, 5, and 6) is reproduced partly via the real speaker (2, 3, 4, 5, and 6) and partly via a virtual speaker (9 and 10) positioned in the same location.

Abstract: The invention relates to a method of deriving a head-related transfer function within a room. According to the invention, electrical signals of a sound pattern or music signals are supplied to a speaker, and sound waves are emitted from the speaker. The sound waves and sound waves reflected within the room act on a speaker of a headset and are converted by the headset speaker into electrical signals. Then an associated head related transfer function is derived from the electrical signals and stored. When headsets are used as microphones in a calibration mode, HRTFs can be assessed without inserting microphones into a listener's cars. Calibration by the end user is thus simplified.

Abstract: In a method for reproducing sound signals by means of headphones provided with microphones, unwanted sound signals from at least one external sound source are compensated by sound signals, simulating in anti-phase the sound signals from said at least one external sound source. The anti-phase sound signals being generated in the headphones in response to signals derived from audio input signals of the at least one external sound source in a first filter device which is controlled by the resulting microphone signals. Further, wanted sound signals are generated in the headphones in response to signals derived from further audio input signals in a second filter device with transfer functions substantially equal to the corresponding transfer functions of the first filter device.

Abstract: In a method for canceling unwanted signals from at least one external sound source, such as a loudspeaker, by means of headphones provided with microphones, at least known sound signals from the at least one external sound source are compensated by anti-phase sound signals. These sound signals simulate the at least known sound signals from said at least one external sound source in anti-phase. Said anti-phase sound signals are generated in the headphones in response to signals derived from audio input signals of the at least one external sound source in a filter device which is controlled by the resulting microphone signals.