CN102883245A

CN102883245A - Three-dimensional (3D) airy sound

Info

Publication number: CN102883245A
Application number: CN2011103242189A
Authority: CN
Inventors: 郝立
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-10-21
Filing date: 2011-10-21
Publication date: 2013-01-16

Abstract

The invention discloses a three-dimensional (3D) airy sound, and belongs to the technical field of computer music manufacturing. A 2.0 double-sound-track stereo can be changed into a surround field of a dolby logic positioning system, and a 2.0 double-sound-track stereo audio file is analyzed and technically split into multi-sound-track logic surround positioning audios; a multi-sound-track logic surround audio file is technically analyzed and combined to form the 2.0 double-sound-track stereo audio file; and therefore, people can play an audio file through a common double-sound-track stereo headset or a loudspeaker to obtain a multi-sound-track (such as 5.1, 6.1 and 7.1) logic positioning surround field. The 3D airy sound is particularly suitable to be played by a multimedia computer, an automobile loudspeaker, a personal stereo, a family cinema and a cinema and can be applied to a video tape recorder, a laser diode (LD) and video compact disc (VCD) player, a compact disc (CD) player, a limited partnership (LP) juke box, the multimedia computer, a television, a power amplifier and a radio tuner. Interactive and mobile 3D airy sounds can be matched with various playing carriers such as the multimedia computer and an electronic game machine, and interaction surround can be conveniently implemented.

Description

The unreal sound of 3D

Technical field

What the unreal sound of 3D set foot in is the computer music making technical field.

Background technology

Entering digital audio after the epoch, we have experienced several sound body proved recipe formulas and have changed the stage, sound technique is actually the process of a sound-reducing, and we realize reduction by the sound sample that recording technology gathers by the equipment of sound equipment, following several modes therefrom occurred:

1, monophony is more original sound reproduction form, is it to be recorded by recording equipment unified after mixing from the audio signal of different azimuth, is reset by an audio amplifier again, and this manner of playback sound field position is only in the centre.

2, dual track is comprised of two sound channels, and the signal of telecommunication that they transmit separately on circuit is the same, so the sound that two sound channels spread out of also is the same, the sound field position of this play mode is in the middle of only.

3, stereo is exactly continuity and the development of dual track, and it realizes the movement of position, the sound left and right sides on the basis of dual track, but this movement only limits to planar movement.It can not reduce natural sound and sound position really.

We will welcome the epoch of the unreal sound of 3D today, and this brand-new know-why will be opened for the mankind veil of ears, the world of rediscover.

Summary of the invention

The unreal sound of so-called 3D normally compares with normal stereo, refers to that sound seems a kind of mode that the hearer is surrounded.The sound field that this mode produces except the Sounnd source direction sense that is keeping original signal, is also supervened feeling around sense and expansion of sound.

Briefly be exactly, listening the hearer can clearly distinguish in listening the process of the unreal sound of 3D from up and down sound all around, be that the unreal sound of 3D can make spatial sound source expand to whole horizontal plane and even vertical plane by line, therefore can reproduce realistically the space reverberation process of performance hall, have more moving telepresenc, thereby build a kind of acoustics of placing oneself in the midst of singing-hall, cinema for listening the hearer.

Description of drawings

Fig. 1 is isolation technics figure, wherein preposition, (4) bass of (1) L channel, (2) R channel, (3), (5) left around, (6) right around, (7) technical point from, (8) technology merge, (9) infinite many.

Fig. 2 is synthetic technology figure, wherein preposition, (4) bass of (1) L channel, (2) R channel, (3), (5) left around, (6) right around, (7) technical point from, (8) technology merge, (9) infinite many.

Embodiment

The unreal sound of 3D be 2.0 stereophonies realize multichannel logic navigation system around sound field.That is to say 2.0 stereophony audio files are analyzed after, technology splits into the multichannel logic box around the acoustic fix ranging audio frequency.Then multichannel logic box surround-sound audio file is carried out technical Analysis and be merged into 2.0 stereophony audio files, like this, people just can enjoy multichannel logic positioning surrounding sound field effect by the unreal sound audio file of 3D that common two-channel sterearphone or sound equipment are play.

Claims

1. after 2.0 stereophony audio files being analyzed, technology splits into the technology of the 3dpa of multichannel logic ambiophonic system.

2. multichannel logic box surround-sound audio file is carried out the technology that technical Analysis is merged into 2.0 stereophony audio files.

3. the audio file after merging can realize that sound field accurately locates, reach up, down, left, right, before and after around sound field.Realize that sound is in the technology of the interactive hearing enjoying of up, down, left, right, before and after.

4. reach the technology of the multichannel sterego audio file surrounding effects such as 5.1,6.1,7.1 of the famous companies such as on the market Doby (AC-3), DTS in " the unreal sound of 3D " by 2.0 stereophony audio files.

5. " the unreal sound of 3D " technology is used in hardware product such as the technology of computer sound card, guitar effect device, audio frequency effect device, audio frequency effect card, audio amplifier, earphone, mobile phone, phone, DVD player and VCD machine, video tape recorder, LD machine, CD-audio player, LP phonograph, multimedia computer, television power amplifier, sound console etc.

6. the software product that " the unreal sound of 3D " technology used is such as the technology of software effect device, audio player, movie streams media player etc.