Audio reproduction device

An audio reproduction device, comprising:

• a signal processing circuit configured to generate multi-channel audio data;
• an attenuation amount control unit that is connected to the signal processing circuit, wherein the attenuation amount control unit is configured to control an attenuation amount of audio data of each channel;
• and
• a speaker device that is driven by a multi-channel audio signal from the attenuation amount control unit, wherein
• the speaker device includes multi-channel speakers,
• the multi-channel speakers includes a woofer,
• the attenuation amount control unit is further configured to:
• estimate, from an audio data value of each channel, a total value of currents that flows through the speaker device,
• control attenuation amount of the audio data of each channel in such a way that the estimated total value of currents does not exceed a specific value allowed by a power supply,
• perform a first determination processing operation for determination of whether the total value of currents exceeds the specific value in a case where the audio input-data for the woofer is attenuated up to zero,
• cause the audio data for the woofer to be attenuated by a required amount in a case where it is determined that the total value of currents does not exceed the specific value, and
• perform, in a case where it is determined in the first determination processing operation that the total value of currents exceeds the specific value, a second determination processing operation for determination of whether the total value of currents exceeds the specific value in a case where the audio data for the woofer is attenuated to substantially zero, and then the audio data for a plurality of speakers excluding the woofer is attenuated in a range of up to a value, and
• cause the audio data for the plurality of speakers excluding the woofer to be attenuated by a required amount in a case where it is determined that the total value of currents does not exceed the specific value.