System and method for low overhead frequency domain voice authentication

A non-transitory computer readable medium comprising computer executable instructions for generating a voice identification in a frequency domain, said computer readable medium comprising instructions for:

• transforming one or more periods of a voice signal from a time domain to said frequency domain;
• setting an amplitude of a first harmonic to a first amplitude and adjusting each amplitude of one or more other harmonics to maintain relative gain to said first harmonic;
• setting a frequency of said first harmonic of said transformed voice signal to a first frequency and adjusting each frequency of one or more other harmonics to maintain harmonic series relative to said first harmonic;
• filtering said transformed voice signal, including removing one or more frequency components that are above a threshold harmonic, the filtered transformed voice signal comprising one or more remaining harmonics;
• digitizing the amplitude of each of said one or more remaining harmonics into a first number of bits;
• digitizing the number of said one or more remaining harmonics into a second number of bits;
• and,
• concatenating said first number of bits and said second number of bits to form said voice identification;
• and
• storing voice identification.

A mobile device for generating a voice identification in a frequency domain, said mobile device comprising a processor and a memory, said memory includes computer executable instructions for:

• using the processor for transforming one or more periods of a voice signal from a time domain to said frequency domain;
• setting an amplitude of a first harmonic to a first amplitude and adjusting each amplitude of one or more other harmonics to maintain relative gain to said first harmonic;
• setting a frequency of said first harmonic of said transformed voice signal to a first frequency and adjusting each frequency of one or more other harmonics to maintain harmonic series relative to said first harmonic;
• filtering said transformed voice signal, including removing one or more frequency components that are above a threshold harmonic, the filtered transformed voice signal comprising one or more remaining harmonics;
• digitizing the amplitude of each of said one or more remaining harmonics into a first number of bits;
• digitizing the number of said one or more remaining harmonics into a second number of bits;
• and,
• concatenating said first number of bits and said second number of bits to form said voice identification;
• and
• storing voice identification.