Real-time voice timbre style transform

An apparatus for transforming a voice of a speaker to a reference timbre, comprising:

• a processor configured to:
• receive, during a real-time communication session, a first portion of a source signal of the voice of the speaker;
• convert the first portion into a time-frequency domain to obtain a time-frequency signal;
• obtain frequency bin means of magnitudes over time of the time-frequency signal;
• convert the frequency bin magnitude means into a Bark domain to obtain a source frequency response curve (SR), wherein SR(i) corresponds to magnitude mean of the ith frequency bin;
• obtain respective gains of frequency bins of the Bark domain with respect to a reference frequency response curve (Rf);
• obtain equalizer parameters using the respective gains of the frequency bins of the Bark domain;
• transform, into a transformed portion, the first portion to the reference timbre using the equalizer parameters;
• and
• output the transformed portion such that the transformed portion is presented through a speaker.

A non-transitory computer-readable storage medium, comprising executable instructions that, when executed by a processor, facilitate performance of operations comprising:

• receiving, during a real-time communication session, a first portion of a source signal of the voice of the speaker;
• converting the first portion into a time-frequency domain to obtain a time-frequency signal;
• obtaining frequency bin means of magnitudes over time of the time-frequency signal;
• converting the frequency bin magnitude means into a Bark domain to obtain a source frequency response curve (SR), wherein SR(i) corresponds to magnitude mean of the ith frequency bin;
• obtaining respective gains of frequency bins of the Bark domain with respect to a reference frequency response curve (Rf);
• obtaining equalizer parameters using the respective gains of the frequency bins of the Bark domain;
• transforming, into a transformed portion, the first portion to the reference timbre using the equalizer parameters;
• and
• outputting the transformed portion such that the transformed portion is presented through a speaker.