The amount of data or information contained in a second of human voice, in terms of sound wave or frequency information, can vary depending on several factors, including the complexity and quality of the audio recording.
In general, human speech typically falls within a range of approximately 85 to 255 words per minute, with an average of around 150 words per minute in conversational speech. This equates to about 10 to 30 phonemes per second, where a phoneme represents the smallest distinct unit of sound in a language.
If we consider a conservative estimate of 10 phonemes per second, and assuming each phoneme can be represented by 8 bits of data (1 byte), we can estimate that approximately 10 bytes (or 80 bits) of data would be needed to represent one second of human speech.
Therefore, in terms of kilobytes (KB), one second of human voice data, based on this estimation, would require approximately 0.01 KB or 10 bytes of storage.
It's important to note that this is a rough estimate, and the actual data size can vary depending on the specific characteristics of the audio, such as sampling rate, bit depth, compression algorithms used, and other factors. Additionally, this estimation does not include any additional data that may be associated with the audio, such as metadata or encoding overhead.