I doubt it, 300Hz is very low. The lowest fidelity frequently band used in telephony is comprised between 300Hz and 3400Hz, specifically excluding everything below 300Hz (voice frequently)
In these sources they are talking about the fundamental frequency of human Speech F0. Which is one important indicator but I don’t think this band is sufficient for comprehension. Record yourself, apply a low-pass filter with cut frequently at 300Hz and check for yourself if this is enough to understand. It might be enough to make out some words, but I doubt it’s enough to hear clearly.
I doubt it, 300Hz is very low. The lowest fidelity frequently band used in telephony is comprised between 300Hz and 3400Hz, specifically excluding everything below 300Hz (voice frequently)
https://www.ico-optics.org/what-hz-is-human-voice/
https://www.voicescience.org/2025/05/lexicon/average-speaking-frequencies/
http://www.1st-acoustics.com/knowledge/frequency-range-for-human-voice.html
In these sources they are talking about the fundamental frequency of human Speech F0. Which is one important indicator but I don’t think this band is sufficient for comprehension. Record yourself, apply a low-pass filter with cut frequently at 300Hz and check for yourself if this is enough to understand. It might be enough to make out some words, but I doubt it’s enough to hear clearly.
Maybe machine learning can infer the missing wave information (like Fourier transforming partial waveforms??