How to Make a Rotary Dial Phone Ring (Without Telephone Connection)Robin Kshlerin February 29, 2020 2 Comments
During the process of creating a sound library of telephone devices, we came up against two challenges: firstly, how to manage to make the devices ring in a space where there is’nt any landline and secondly, how this ringing would comply with the existing ringing tone standards of every continent. but what i mean by that? Lets see the following table to make it clear: We used a sound generator at 50 Hz (most of the world uses frequencies between 20Hz and 65 Hz) and we recorded the ringings according to the previous table. We connected this channel through the output of our soundcard to the amplifier, and we connected the telephone device to the speakers output of the amplifier. Don’t connect both ends of the telephone cable to one output’s positive and negative, but to both the positive speakers outputs. Hello?