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Audio signal processing system

An audio signal processing and signal processing technology, applied in speech analysis, broadcast information generation, instruments, etc., can solve problems such as impossible to meet, and achieve the effect of simple operation

Active Publication Date: 2011-02-02
YAMAHA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, in these audio signal processing systems employing conventionally known mirroring techniques, it is impossible to achieve sufficient performance to meet the above needs

Method used

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Examples

Experimental program
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Embodiment Construction

[0066] A sound mixing system constituting one embodiment of the audio signal processing system of the present invention will be described below.

[0067]

[0068] Figure 1A and Figure 1B is an illustrative block diagram of the audio mixing system. Figure 1A and Figure 1B The audio mixing system shown in , includes a plurality of system element devices (nodes) and an audio network 7 interconnecting these system element devices (nodes). A plurality of system element devices include a mixing console (hereinafter referred to as "device B") 1 that can be operated by an operator to perform various operations, a first unit that performs signal processing such as mixing processing on audio signals (sound signals). A sound mixing engine (hereinafter referred to as "device C") 2 and a second sound mixing engine (hereinafter referred to as "device D") 3, and input of an audio signal from outside the mixing system and output of the audio signal to the outside of the mixing system ...

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Abstract

An audio signal processing system is provided. Region having a same size in a audio signal region of a transmission frame is allocated to each of an active engine and passive engine. The active engine reads out input signals written into regions of the frame, performs signal processing on the read-out signals, and writes resultant signals into the region allocated to the active engine. The passive engine reads out the input signals written into the regions, performs the same signal processing as the active engine on the read-out signals, and writes resultant output signals into the region allocated to the passive engine. When a flag of the active engine is indicative of a normal state, an output device reads out the output signals from the region allocated to the active engine, but, when the flag is indicative of an abnormal state, the output device reads out the output signals from the region allocated to the passive engine. Such arrangmenet allows switch on engines without generating an acutral stop to output of audio signals.

Description

technical field [0001] The present invention relates to an audio signal processing system having a function of transmitting audio signals between a plurality of devices in real real time. Background technique [0002] In the field of digital sound mixers, it is known to separately provide a console operated by an operator and an engine performing signal processing such as mixing processing, and to constitute a mixing system by connecting the engine to the console. It is also known to connect two engines to such a mixing system to realize or perform mirroring of the engines (engine mirroring) and thereby constitute a so-called fault-tolerant mixing system (see, for example, Japanese Patent Application Laid-Open No. 2003-101442 No., hereinafter referred to as "Patent Document 1"). In such a fault-tolerant mixing system, one of the two engines is usually used as the main signal processing engine, and the other engine is used as a backup engine. When an abnormality occurs in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/00
CPCH04H60/04
Inventor 中山圭
Owner YAMAHA CORP
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