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By Rabbi Haim Jachter | January 21, 2021
Modern authorities have vigorously debated whether a sound heard through a microphone, hearing aid (which functions much like a microphone), or telephone shares the status of the original sound. This issue impacts the fulfillment of numerous mitzvot, such as listening to the blowing of a shofar or to Torah and Megilla readings, by hearing them through these electronic media. Rav Ovadia Yosef (Teshuvot Yechave Da’at 3:96) strongly endorses the stringent opinion.
How Does a Microphone Work?
Before addressing the halachic aspects of electronic devices, Rav Shlomo Zalman Auerbach (Teshuvot Minchat Shlomo 1:9) describes the workings of a microphone in great detail. It receives sound waves (the original voice or sound) and converts them into electronic signals. An amplifier/speaker system then reconverts the electronic signals into an amplified replica of the original sound. A similar operation takes place within hearing aids and