Control method of active sound box with built-in DSP (digital signal processor)

Control method of active sound box with built-in DSP (digital signal processor)

  • CN 102,780,941 A
  • Filed: 08/09/2012
  • Published: 11/14/2012
  • Est. Priority Date: 08/09/2012
  • Status: Active Application
First Claim
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1. the control method of a built-in DSP active audio amplifier;

  • It is characterized in that;

    this active audio amplifier comprises signal input unit, digital signal processor, microprocessor, a plurality of power amplifier unit and a plurality of loudspeaker unit, and each power amplifier unit is connected with the loudspeaker unit that is complementary;

    This digital signal processor is provided with data memory module, stores one group of input processing parameter and many groups of corresponding with each power amplifier unit respectively output processing parameters in this data memory module, and every group object output processing parameter comprises one or more DSP parameters;

    This group input processing parameter comprises a plurality of entity DSP data;

    Each entity DSP data comprises an audio amplifier layer DSP parameter and an array layer DSP parameter corresponding with the kind of this entity DSP data;

    This audio amplifier layer DSP parameter is the DSP parameter that is provided with to this active audio amplifier;

    This array layer DSP parameter is the DSP parameter that is provided with to each audio amplifier member of array group under this active audio amplifier, and this array group comprises one or more active audio amplifiers;

    This method may further comprise the steps;

    Step S10;

    this microprocessor is adjusted with each DSP parameter of each group output processing parameter each DSP parameter of this group input processing parameter according to external control signal;

    Step S20;

    this signal input unit receives the audio signal of the outside input of audio amplifier, and transfers to this digital signal processor;

    Step S30;

    this digital signal processor is carried out a plurality of signal processing operations steps with pipeline system;

    Corresponding signal processing operations step of each DSP parameter of this group input processing parameter, each signal processing operations step is carried out the corresponding signal process operation according to the DSP parameter of correspondence to audio signal;

    The audio signal that to pass through after step S30 handles is divided into the multichannel output audio signal corresponding with each power amplifier unit;

    Step S40;

    for each road output audio signal;

    This digital signal processor is carried out a plurality of signal processing operations steps with pipeline system;

    The corresponding signal processing operations step of each DSP parameter of the one group output processing parameter corresponding with this one road output audio signal, each signal processing operations step is carried out the corresponding signal process operation according to the DSP parameter of correspondence to this one road output audio signal;

    Step S50;

    each power amplifier unit receives one road output audio signal of the correspondence of handling through step S40, and this one road output audio signal is carried out transferring to corresponding loudspeaker unit after the processing and amplifying.

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