Voice Technologies

  1. Fundamentals of Sound and Speech
    1. Physics of Sound
      1. Sound Wave Properties
        1. Waveform Characteristics
          1. Sine Waves and Complex Waves
            1. Wave Propagation
            2. Frequency and Pitch
              1. Fundamental Frequency
                1. Harmonic Structure
                  1. Human Pitch Perception
                    1. Frequency Ranges in Speech
                    2. Amplitude and Loudness
                      1. Sound Pressure Level
                        1. Decibel Scale
                          1. Loudness Perception
                            1. Dynamic Range in Speech
                            2. Timbre and Sound Quality
                              1. Spectral Envelope
                                1. Harmonics and Overtones
                                  1. Formant Structure
                                    1. Sound Source Identification
                                  2. Human Speech Production
                                    1. Anatomy of Speech Production
                                      1. Respiratory System
                                        1. Larynx and Vocal Folds
                                          1. Vocal Tract Structure
                                            1. Articulators
                                            2. Speech Production Process
                                              1. Airflow and Voicing
                                                1. Articulation Mechanisms
                                                  1. Coarticulation Effects
                                                    1. Speech Motor Control
                                                    2. Phonetic Classification
                                                      1. Articulatory Phonetics
                                                        1. Acoustic Phonetics
                                                          1. Auditory Phonetics
                                                            1. International Phonetic Alphabet
                                                            2. Phonological Systems
                                                              1. Phonemes and Allophones
                                                                1. Phonological Rules
                                                                  1. Language-Specific Patterns
                                                                    1. Phonotactic Constraints
                                                                    2. Prosodic Features
                                                                      1. Stress Patterns
                                                                        1. Intonation Contours
                                                                          1. Rhythm and Timing
                                                                            1. Emotional Expression
                                                                          2. Digital Audio Representation
                                                                            1. Analog-to-Digital Conversion
                                                                              1. Sampling Process
                                                                                1. Sampling Rate Selection
                                                                                  1. Nyquist-Shannon Theorem
                                                                                    1. Aliasing Prevention
                                                                                    2. Quantization
                                                                                      1. Bit Depth Considerations
                                                                                        1. Quantization Error
                                                                                          1. Signal-to-Noise Ratio
                                                                                            1. Dynamic Range
                                                                                            2. Audio File Formats
                                                                                              1. Uncompressed Formats
                                                                                                1. Lossless Compression
                                                                                                  1. Lossy Compression
                                                                                                    1. Format Selection Criteria
                                                                                                    2. Audio Quality Metrics
                                                                                                      1. Objective Quality Measures
                                                                                                        1. Subjective Quality Assessment
                                                                                                          1. Perceptual Quality Models

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                                                                                                      1. Introduction to Voice Technologies

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                                                                                                      3. Digital Signal Processing for Speech