Method and relative device for producing echo effect

A sound effect and echo technology, applied in stereo devices, instruments, sensor parts, etc., can solve the problems of large computing and storage resources, and achieve the effect of high efficiency and low cost

Inactive Publication Date: 2005-03-02
VIA TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the signal processing required by such methods often consumes a large amount of computing and storage resources, making reverberant sound effects impossible to achieve in a less costly and more efficient manner

Method used

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  • Method and relative device for producing echo effect
  • Method and relative device for producing echo effect
  • Method and relative device for producing echo effect

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Embodiment Construction

[0024] Please refer to figure 1 . figure 1 Shown is a situation where sound propagates from a sound source S to a receiver R in a given space S0. When the sound is emitted by the sound source S, the sound may travel to the receiving end R through many different paths; for example, the sound may travel directly to the receiving end R from the path P0, or it may travel along the paths P1a, P1b, and P1c Paths such as P1d and P1d propagate to the receiving end R after being reflected once on the wall W of the space S0. Of course, the sound may be received by the receiving end R after multiple reflections between walls, such as via paths P2a, P2b, or P3, and so on. Since the paths P0 , P1a to P1d , P2a , P2b , P3 , etc. all have different path lengths, the sounds propagating along different paths will also arrive at the receiving end R at different times. For example, when the sound starts to propagate from the sound source S, the sound traveling along the path P0 will arrive at...

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Abstract

This invention provides a method for generating echo sound effect and related devices to generate an output signal with an echo effect according to the input signal. This invention first of all sets a fixed value echo interval and delays the said input signal to sequently generate multiple delay signals and makes each delay time of a delay signal to the second signal equal to the said echo interval and numbers of the signals are determined according to the numbers of the echo intervals in the echo time step in the early stage of the echo effect. The delayed signals can be early stage echo part of output signals after the low-pass filter, and can form the later echo part in the output signals.

Description

technical field [0001] The present invention relates to a method for designing and realizing reverberation sound effects and related devices / circuits, in particular to a reverberation sound effect generation method and method for adaptively generating a delay signal based on the number of echo intervals in the early reverberation to realize the early reverberation part Associated devices / circuits. Background technique [0002] Touching music can soothe people's hearts and has become an important part of human life. According to research, pleasing music is not only related to the vocal characteristics of the instrument, the personal skills of the performer and singer, but also the environment in which the music is played. For the audience, the music performed in the professionally designed concert hall will be more vigorous and beautiful, with lingering reverberation. The special sound effect presented by music resonating and reverberating in the concert hall can be called ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K15/08H04R3/00H04R5/00
Inventor 林森张龙妹
Owner VIA TECH INC
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