US2014165820A1PendingUtilityA1

Audio synthesizing systems and methods

44
Individually held — no corporate assignee on recordPriority: Aug 2, 2011Filed: Dec 12, 2013Published: Jun 19, 2014
Est. expiryAug 2, 2031(~4.9 yrs left)· nominal 20-yr term from priority
Inventors:James Edwin Van Buskirk
G10H 1/125G10H 1/0575G10H 2240/311G10H 2250/055G10H 2250/235
44
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Claims

Abstract

A system and method is disclosed teach how to synthesizing audio. It allows specification of a musical sound to be generated. It synthesizes an audio source, such as noise, using parameters to specify the desired frequency slit spacing and the desired noise-to-frequency band ratio, then filtering the audio source through a sequence of filters to obtain the desired frequency slit spacing and noise to frequency band ratio. It allows modulation of the filters in the sequence. It outputs musical sound.

Claims

exact text as granted — not AI-modified
1 - 25 . (canceled) 
     
     
         26 . A method for synthesizing audio to produce a musical sound, comprising the steps of:
 receiving an audio source;   setting parameters of at least two filters to specify a desired frequency slit spacing and the desired noise-to-frequency-band ratio, wherein the frequency slit spacing for each filter corresponds to one of harmonic frequency bands, inharmonic frequency bands, or a combination of harmonic and inharmonic frequency bands;   filtering a signal based on the audio source through a sequence of the at least two filters to filter the audio source into a series of harmonic, inharmonic, or a combination of harmonic and inharmonic frequency-bands-with-noise;   outputting an audio output to produce musical sound.   
     
     
         27 . The method of claim  1 , wherein the audio source comprises pitched sounds, the method further comprising:
 converting the pitched sounds of the audio source into wide-band audio noise spectra, wherein intelligibility, sibilance, or transient aspects of the incoming audio is preserved during the conversion of the pitched sounds; and   performing the filtering on the converted audio source to produce the musical sound.   
     
     
         28 . The method of claim  1 , wherein the audio source comprises sounds of a first instrument, the method further comprising:
 converting the pitched sounds of the audio source into wide-band audio noise spectra; and   performing the filtering on the converted audio source so that the audio output sounds like a second instrument.   
     
     
         29 . The method of claim  1 , wherein:
 the filtering of the signal based on the audio source changes a first pitch in the audio source to a different second pitch in the output audio.   
     
     
         30 . The method of claim  1 , wherein the audio source comprises norm pitched sounds, the method further comprising:
 modulating an output of one of the at least two filters, wherein modulation is triggered by an external source that provides pitch information; and   outputting the audio output to produce the musical sound based on the modulation.   
     
     
         31 . The method of claim  5 , wherein:
 the modulation is triggered by a keyboard.   
     
     
         32 . The method of claim  5 , wherein:
 the audio source comprises talking, whispering, or vocalization; and   the output audio resembles a musical instrument, based on the modulation.   
     
     
         33 . The method of claim  1 , wherein the audio source comprises pitched sounds, the method further comprising:
 converting the pitched sounds of the audio source into wide-band audio noise spectra;   performing the filtering on the converted audio source;   modulating an output of one of the at least two filters, wherein modulation is triggered by an external source that provides pitch information; and   outputting the audio output to produce the musical sound based on the modulation.   
     
     
         34 . The method of claim  1 , wherein:
 the frequency slit spacing for one of the at least two filters corresponds to harmonic frequency bands.   
     
     
         35 . The method of claim  1 , wherein:
 the frequency slit spacing for one of the at least two filters corresponds to inharmonic frequency bands.   
     
     
         36 . A system for synthesizing audio to produce a musical sound, comprising:
 an input interface for receiving an audio source;   two or more frequency aperture cells with configurable parameters corresponding to a desired frequency slit spacing and a desired noise-to-frequency-band ratio and configured to filter a signal based on the audio source into a series of harmonic, inharmonic, or a combination of harmonic and inharmonic frequency-bands-with-noise; and   an output interface for outputting an audio output to produce musical sound.   
     
     
         37 . The system of claim  11 , wherein the audio source comprises pitched sounds, the system further comprising:
 a dispersion module for converting the pitched sounds of the audio source into wide-band audio noise spectra, wherein intelligibility, sibilance, or transient aspects of the incoming audio is preserved during the conversion of the pitched sounds; and   wherein the frequency aperture cells filter the converted audio source to produce the musical sound,   
     
     
         38 . The system of claim  11 , wherein the audio source comprises sounds of a first instrument, the system further comprising:
 a dispersion module for converting the pitched sounds of the audio source into wide-band audio noise spectra; and   wherein the frequency aperture cells filter the converted audio source so that the audio output sounds like a second instrument.   
     
     
         39 . The system of claim  11 , wherein:
 the filtering of the signal based on the audio source changes a first pitch in the audio source to a different second pitch in the output audio.   
     
     
         40 . The system of claim  11 , wherein the audio source comprises non pitched sounds, the system further comprising:
 an external source that provides pitch information and is configured to provide a trigger for modulating an output of one of the at least two filters; and   wherein outputting the audio output to produce the musical sound is based on the modulation.   
     
     
         41 . The system of claim  15 , wherein:
 the external source that triggers modulation is a keyboard.   
     
     
         42 . The system of claim  15 , wherein:
 the audio source comprises talking, whispering, or vocalization; and   the output audio resembles a musical instrument, based on the modulation of the output of one of the at least two filters.   
     
     
         43 . The system of claim  11 , wherein the audio source comprises pitched sounds, the system further comprising:
 a dispersion module for converting the pitched sounds of the audio source into wide-band audio noise spectra, and wherein the frequency aperture cells filter the converted audio source;   an external source that provides pitch information and is configured to provide a trigger for modulating an output of one of the at least two filters; and   wherein outputting the audio output to produce the musical sound is based on the modulation.   
     
     
         44 . The system of claim  11 , wherein:
 the frequency slit spacing for one of the at least two filters corresponds to harmonic frequency bands.   
     
     
         45 . The system of claim  11 , wherein:
 the frequency slit spacing for one of the at least two filters corresponds to inharmonic frequency hands.

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