The present invention is directed to a wearable stutter reducing device
incorporating novel methods that make extensive use of digital signal
processing (DSP) technology. The wearable stutter reducing device of the
present invention has an audio signal receiver for receiving speech
signals corresponding to a wearer's voice. An input conversion means for
converting the speech signals and noise mixed with the speech signals
into frequency domain components is in communication with the audio
signal receiver. A channelization means in communication with the
conversion means separates the frequency domain components into a
plurality of channels. An identifying means in communication with the
plurality of channels identifies which channels of the plurality of
channels contain substantially more speech corresponding frequency domain
components than noise corresponding frequency components. An
amplification means for amplifying signals identified as speech is in
communication with the identifying means. The present invention also
includes a frequency altering means for altering the frequency of a
predetermined number of channels and an output conversion means in
communication with the amplification means for converting the frequency
components into time domain signals containing amplified speech.