Automatic text independent speaker identification system
VOICE BIOMETRIC TECHNOLOGIES:
is intended for automatic identification of a speech signal of unknown
voice by comparing with "speaker cards", existing in the
database of system. ...
Pitch Shifting technology
TECHNOLOGIES OF AUDIO-SPEECH EFFECTS:
is used for pitch scale modification (changing the harmonics structure)
of speech and audio signals. Pitch shifting technology can be
effectively used for changing initial music or voice into another
music or voice (audio-speech effect). ...
Time stretching technology
is used for time scale modification (changing the speed or duration) of
an audio signal without affecting its pitch.
Principle of functioning algorithm is based on time-domain modification using SOLA technology, such as Waveform Synchronized Overlap-Add (WSOLA). ...
Sample Rate Converter
is technology used for changing sampling rate in speech and audio signals.
Principle of functioning algorithm is based on methods of interpolation. ...
SPEECH ENHANCEMENT TECHNOLOGIES:
of speech enhancement can be used for reduction of external hindrances and
broadband color noises in speech signal. Controlled level of noises
suppression in speech is up to 60 dB.
can be effectively used when noise from many different sources needs
to be canceled. In its simplest form the technique uses two microphone solution. Speaker is recorded synchronous with the source
of hindrance (noise). The first microphone bases near by speaker, but the
second one bases near by source of hindrance or noise. ...
Microphone Array solution
of speech enhancement can be used for reduction of external hindrances
and ambient noises in speech source signal. In its simplest form the
technique uses two array microphone configurations. By using
acoustical beam-forming techniques, the microphone array can
"focus" on the speaker's position. ...
'm-board-vc33' Audio DSP board on the base of TI TMS320VC33 DSP uses for development of DSP alghorithms with float-point operations ...
DEVELOPMENT OF DSP BOARDS: