FR2889020A1 - Audio data transmission system for e.g. collective habitation, has transducers each with specific power consumption, and two hi-fi audio sockets, where system has structure adapted for transmitting audio frequencies - Google Patents

Abstract

The system has an amplifier of 170 watts and with second order low pass and high pass filters. A set of transducers are provided each having a power consumption of 50 watts. Two hi-fi audio sockets are provided, where each socket has an output of 250 milli watts. The system has a resonance frequency of 2 hertz and a structure that is adapted for transporting audio frequencies of 1 to 300 hertz. A set of band pass filters are provided for selecting frequency ranges before being converted by an electromagnetic vibrator. A power amplifier generates an amplification of an audio signal.

Description

2889020 G. 31/1.

  The reproduction of the audio signal in a multimedia system is ensured by a converter, a signal amplifier and a filter system separating the high, medium and low-frequency components. The actuators used are diaphragm loudspeakers (or transducers). The energy losses between the user and his acoustic system are greater than 50% (unsatisfactory). The gene caused by these energy losses is harmful to the environment. Moreover the effect desired by the user is very disparate according to his hearing acuity and location.

  t0 Psycho-acoustics cause a phenomenon of masking of the midrange and the treble when the low frequency spectrum exceeds a certain sound level.

  The proposed solution is to redefine the sound dispersion framework to a volume allocated to the activity. listening.

  The solution is to improve the energy efficiency between the transducers and the hearing of the user by improving the energy chain.

  The sound and / or vibratory signal is according to its directivity, intensity and power directed to the corresponding transducer according to its wave nature.

  The transducers are active or passive components such as oscillating electromagnetic coils, piezoelectric coils, light cores equipped with diaphragm or not and are flat near the user in his touch, sound and visual fields.

  The strong tanks, or frequencies are transmitted to the users by implantation of vibrator (or electromagnetic transducers without membrane): in. the listening area of the user. The vibrations generated are transmitted by physical contact (sofa, etc ...) The midrange and acute having a directive nature, it is appropriate to place the transducers membrane at a distance of less than 50 cm gills for the good-hearted. The sound dispersion cone covers the auditory surface.

  The audible signals outside the user's listening spectrum are translated into light signals or vibrations according to their relevance to the subject matter.

  The invention aims to reduce noise pollution in the home, in collective housing and in public places.

  In a second step, this mode of transcription aims to democratize to the deaf and hearing-impaired as well as hearing a downward communication interface 35 1 using the audible wave type signals (20Hz to 20000Hz) from signals ranging in length 1.1.012 Hz at 1.10-12Hz and this thanks to the use of algorithms programmed in a DSP (digital signal processor).

  The invention is particularly intended for the multimedia framework, the transmission of audible information from media and multimedia media.

  One of the embodiments is to use one. analog signal; in this case sound.

  1 A filter network or band pass selects the frequency ranges to be translated by the actuator, in this case electromagnetic vibrator: magnet 45 magnetic-electric coil.

  2A power amplifier, audio in this case, generates the amplification of the signal.

  3An active component, or commercial electromagnetic buzzer, in this case, provides the signal transmission to the user.

  4The massive components or of interest, in this case the bass, are sent directly to the physical environment of the user, 51e light or second-order components, of second interest; in this case are sent to. Irror of the user.

  The use of materials and advanced techniques makes it possible to reach an almost zero noise level for the environment; according to the information sent, its oscillatory amplitude and its wavelength.

  Applications. This patent applies to the military sector, especially for high frequencies, by the use of signal processor reconditioning the information with respect to the wave spectrum (brain waves).

  Another application of this patent concerns the voting system.

  The reverse communication mode of the user to a signal processing center makes it possible to follow the mode of cerebral-nuclear synchronicity by the use of an interface not described here.

Claims (1)

claims   The invention in its first claim relates to the object described below.   Subsystem of living room sofa. This system is composed as described above of a 170W amplifier, high-pass filter and second-order low pass (qsp 70 signal quality), of several commercial transducers of 50 W each.   2nd 2. 250mW stereo-stereo audio jacks.   This subsystem is adapted to a living room sofa whose rigid structure conveys the low frequency with the best vibratory performance. The liver of the structure is calculated to convey the low frequencies from I Hz to 300 Hz, its resonance frequency being at 2 Hz.   Characterized by the sound and tactile improvement of the show: Parallalement characterized; the urban and environmental nuisance at the show is isolated from the most polluting sound waves 20Hz to 500Hz.   In the case of dependent uses it is possible to consider the reduction of tactile pollution in vehicles by reducing the vibration of the vehicle undercarriages. The subsystem would pick up the cyclic vibrations and cancel or mask them. as opposed to phase_