Audio content-based speaker control

A system for controlling a speaker, the system comprising:

• a speaker;
• a low-power source powering the speaker;
• a short-term energy storage connected to the speaker;
• a digital signal processor;
• a memory;
• and
• a processor,
• wherein the memory contains instructions that when executed by the processor causes the processor to perform a method that includes:
• receiving audio for playback on the speaker;
• acquiring a time-resolved power analysis of the audio and calculating a time-resolved speaker power requirement required by a speaker playing back the audio;
• comparing the time-resolved speaker power requirement with a combined capacity of the low-power source and the short-term energy storage;
• and
• adjusting one or more of:
• a dynamic range, a frequency range, and an output gain of the digital signal processor, such that the speaker power requirement meets the combined capacity of the low-power source and the short-term energy storage for the duration of a playback of the received audio on the speaker,
• wherein the adjusting comprises adjusting a sound profile of the audio by adjusting one or more of the dynamic range and the frequency range, and
• wherein the output gain is only adjusted upon the adjustment of the one or more of the dynamic range and the frequency range not being sufficient to meet the combined capacity of the low-power source and the short-term energy storage for the duration of a playback of the received audio on the speaker.

A computer program product for controlling a speaker, the speaker being electrically powered with a low-power source, and being connected to a short-term energy storage, the computer program product comprising a non-transitory computer readable storage medium having program instructions embodied therewith, the program instructions being executable by a processor to perform a method comprising:

• receiving audio for playback on the speaker;
• acquiring a time-resolved power analysis of the audio and calculating a time-resolved speaker power requirement required by a speaker playing back the audio;
• comparing the time-resolved speaker power requirement with a combined capacity of the low-power source and the short-term energy storage;
• and
• adjusting one or more of:
• a dynamic range, a frequency range, and an output gain of a digital signal processor, such that the speaker power requirement meets the combined capacity of the low-power source and the short-term energy storage for the duration of a playback of the received audio on the speaker,
• wherein the adjusting comprises adjusting a sound profile of the audio by adjusting one or more of the dynamic range and the frequency range, and
• wherein the output gain is only adjusted upon the adjustment of the one or more of the dynamic range and the frequency range is not sufficient to meet the combined capacity of the low-power source and the short-term energy storage for the duration of a playback of the received audio on the speaker.