Determining spatial impulse response via acoustic scrambling

One or more non-transitory computer-readable media storing program instructions that, when executed by one or more processors, cause the one or more processors to perform steps of:

• generating a frequency sweep signal having a monotonically increasing frequency;
• partitioning the frequency sweep signal into N input segments, each of the N input segments representing a different frequency range, wherein each input segment in the N input segments is associated with a respective first position of the input segment in the N input segments;
• generating an encoding key having a sequence of N non-consecutive numbers, wherein each number in the sequence appears once;
• generating an output signal by selecting each of the N input segments in an order based on the sequence of N non-consecutive numbers in the encoding key, wherein:
• the output signal comprises a rearranged sequence of the N input segments,
• each input segment has a respective second position in the rearranged sequence, and
• the respective second position is based on a respective position of a number corresponding to the respective first position in the sequence of N non-consecutive numbers;
• and
• causing a speaker to produce audio tones in an audio space based on the output signal.

A system, comprising:

• one or more memories storing instructions;
• and
• one or more processors coupled to the one or more memories and, when executing the instructions:
• generate a frequency sweep signal having a monotonically increasing frequency;
• partition the frequency sweep signal into N input segments, each of the N input segments representing a different frequency range, wherein each input segment in the N input segments is associated with a respective first position of the input segment in the N input segments;
• generate an encoding key having a sequence of N non-consecutive numbers, wherein each number in the sequence appears once;
• generate an output signal by selecting each of the N input segments in an order based on the sequence of N non-consecutive numbers in the encoding key, wherein:
• the output signal comprises a rearranged sequence of the N input segments,
• each input segment has a respective second position in the rearranged sequence, and
• the respective second position is based on a respective position of a number corresponding to the respective first position in the sequence of N non-consecutive numbers;
• and
• cause a speaker to produce audio tones in an audio space based on the output signal.