Sökning: "voice signal"

Visar resultat 6 - 10 av 80 uppsatser innehållade orden voice signal.

  1. 6. Design of a 13-Bit SAR ADC with kT/C noise cancellation technique

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Shashank Keerthy Kumar; [2023]
    Nyckelord :Technology and Engineering;

    Sammanfattning : One of the main limitations of a Successive Approximation Register (SAR) Analog-to-Digital Converter (ADC) is the large input capacitance needed to achieve the desired performance. This large input capacitance increases the total area of the ADC and it imposes the use of a powerful buffer to drive it. LÄS MER

  3. 7. HRTF-Based Sound Field Interpolation in the Presence of a Human Head

    Master-uppsats, Lunds universitet/Matematisk statistik

    Författare :Anton Björkman; [2023]
    Nyckelord :Sound field interpolation; HRTF; head-related transfer function; kernel ridge regression; in-ear sound estimate; Helmholtz equation; Mathematics and Statistics;

    Sammanfattning : There are different ways of evaluating the sound pressure in a sound field. Doing so is an essential part of several applications, such as active sound control and voice analysis. LÄS MER

  4. 8. Towards a Nuanced Evaluation of Voice Activity Detection Systems : An Examination of Metrics, Sampling Rates and Noise with Deep Learning

    Master-uppsats, Linköpings universitet/Institutionen för datavetenskap

    Författare :Ludvig Joborn; Mattias Beming; [2022]
    Nyckelord :voice activity detection; VAD; deep learning; machine learning; ML; artificial intelligence; AI; convolutional neural network; CNN; deep neural network; DNN; sound event detection; SED; mel spectrogram; audio processing; polyphonic sound detection score; PSDS; signal processing; signal to noise ratio; SNR; recurrent convolutional residual neural network; RCRNN; sampling rate; Gaussian noise;

    Sammanfattning : Recently, Deep Learning has revolutionized many fields, where one such area is Voice Activity Detection (VAD). This is of great interest to sectors of society concerned with detecting speech in sound signals. One such sector is the police, where criminal investigations regularly involve analysis of audio material. LÄS MER

  5. 9. Speaker verification: Advantages and limitations of a biologically inspired feature extractor

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Maja Gajic; [2022]
    Nyckelord :Speaker verification; artificial neural network; ANN; feature extractor; Technology and Engineering;

    Sammanfattning : Speaker verification is the process of verifying the identity of a person based on voice. This process usually encompasses the following steps: The speech signal is mapped into features using a feature extractor, these features are then classified using a post processor. LÄS MER

  7. 10. Speaker Recognition using Biology-Inspired Feature Extraction

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Edvin Andersson; [2021]
    Nyckelord :Artificial Intelligence; AI; Machine Learning; Speaker Recognition; Technology and Engineering;

    Sammanfattning : Distinguishing between people's voices is something the human brain does naturally, using only frequencies picked up by the inner ear. The field of speaker recognition is concerned with making machines do the same thing using digitally sampled speech and data processing. LÄS MER