What is the default voice digitization rate for PCM?

The default voice digitization rate for Pulse Code Modulation (PCM) is 64 Kbps. This rate is essential for transmitting voice signals in a digital form and is standardized primarily for telephone communications. PCM samples analog signals at a frequency of 8 kHz, and each sample is represented by 8 bits. By multiplying the sampling frequency (8,000 samples per second) by the number of bits per sample (8 bits), the resulting data rate is 64 Kbps. This method ensures high-quality sound reproduction suitable for voice communications, making it the most widely used format in telephony.