If the information is stored at some value of bits per cm… There’s less bitrate (bits per revolution) in the middle of the record vs the outer edges.
If the information is stored at some value of bits per cm… There’s less bitrate (bits per revolution) in the middle of the record vs the outer edges.
The outerwards part of the record can hold louder signal without the needle jumping.
That’s why there’s actually a record that plays backward https://www.youtube.com/watch?v=5Afikv6k1-c because Bolero gets louder and louder as the song progresses,