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Audio Signal Processing

Sound-capturing-method-and-device

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Sound capturing method and device

Details

Inventors: Magyari, Douglas Peter; Magyari, David Keith;
Assignee:
Primary Examiner: Mei; Xu
Assistant Examiner:
Attorney, Agent or Firm: Brooks Kushman P.C.

A sound capturing method and device for use in making recordings having improved three-dimensional imagery during playback. Vibration information is detected from a body portion through the use of a crystal microphone for generating a first signal corresponding to a vibrational frequency of the body portion in response to a received sound wave. Direct sound information is detected from the body portion through the use of a condenser microphone affixed thereto at a second location for generating a second signal corresponding to a frequency of the received sound wave. The first and second locations are in proximity to one another such that a sound wave will reach each location at substantially the same time. Alternatively, the signals received at either location may be processed or time-delayed such that sound waves are recorded from each location at substantially the same time. The resultant first and second signals may be combined through the use of a mixer and then put into a conventional sound recording device.

DETAILED DESCRIPTION What is claimed is: 1.
A sound capturing device, comprising: a body portion geometrically configured to simulate the acoustic properties of a human head and torso; a first microphone coupled to the body portion for generating a first signal corresponding substantially to a vibrational frequency of said body portion in response to a received sound wave; and a second microphone affixed to the body portion and integral with the first microphone for generating a second signal corresponding substantially to a frequency of said received sound wave such that said sound wave will reach the first and second microphones at substantially the same time.
2.
A sound capturing device, comprising: a body portion geometrically configured to simulate the acoustic properties of a human head and torso; a crystal microphone affixed to the body portion for generating a first signal corresponding substantially to a vibrational frequency of said body portion in response to a received sound wave; and a condenser microphone affixed to the body portion and integral with the crystal microphone for generating a second signal corresponding substantially to a frequency of said received sound wave such that said sound wave will reach the crystal microphone and the condenser microphone at substantially the same time.

Description:
TECHNICAL FIELD This invention relates to a method and device for capturing sound for use in recording phonorecords, compact disks, and the like having improved three-dimensional imagery during playback.
BACKGROUND OF THE INVENTION Since the development of dual-channel or "stereo" transmission systems, audio system designers have sought ways to improve upon the dimensionality of source recordings.
There are currently two schools of thought on how to achieve this goal: Algorithmic manipulation; and binaural recording.
In the algorithmic approach, elaborate processing techniques are utilized including, for example, phase shifting and EQ delays so as to create the illusion of height and depth

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