In the book 'The Power of Film', it says:
Edison’s early recordings at the end of the nineteenth century were made by speaking into the large end of a big trumpet that used the pressure of sound waves to incise grooves in a spinning wax cylinder. It would surprise anyone today to find that Edison’s contemporaries praised these crude records for their astonishing “realism.”
I don't understand what the author means by "used the pressure of sound waves to incise grooves in a spinning wax cylinder." Can someone please say what this means or can you please direct me to a website that explains this?
Thanks.
Edison’s early recordings at the end of the nineteenth century were made by speaking into the large end of a big trumpet that used the pressure of sound waves to incise grooves in a spinning wax cylinder. It would surprise anyone today to find that Edison’s contemporaries praised these crude records for their astonishing “realism.”
I don't understand what the author means by "used the pressure of sound waves to incise grooves in a spinning wax cylinder." Can someone please say what this means or can you please direct me to a website that explains this?
Thanks.