Architectural Design and Performance Evaluation of Machine Learning-Based Speaker Recognition Systems

• 1Anna University Chennai, Department of ECE, K. Ramakrishnan college of engineering, Tamilnadu, IN
• 2Anna University Chennai, Students, Department of ECE, K. Ramakrishnan college of engineering, Tamilnadu, IN
• 3Anna University Chennai, Students, Department of ECE, K. Ramakrishnan college of engineering, Tamilnadu, IN
• 4Anna University Chennai, Students, Department of ECE, K. Ramakrishnan college of engineering, Tamilnadu, IN
• 5Anna University Chennai, Students, Department of ECE, K. Ramakrishnan college of engineering, Tamilnadu, IN

This describes an implemented speaker identification system leveraging a 1D Convolutional Neural Network (CNN). The classifier processes simulated Mel-Frequency Cepstral Coefficient (MFCC) features to distinguish between 4 unique speakers. The system circumvents real audio data acquisition by generating 80 fixed-length feature vectors (length 100), where the distinct acoustic signatures are simulated by assigning a unique mean offset to the feature distribution of each speaker. After reshaping the features for the Conv1D input and splitting the data, the defined CNN architecture—which includes two Conv1D layers and MaxPooling1D blocks—is trained. The model effectively demonstrates the capacity of 1D CNNs for sequence classification in biometric tasks, yielding near-perfect accuracy owing to the highly separable nature of the generated voice features.