I am a near-daily rider of the CTA Blue and Red lines. I recently noticed that certain audio has changed. The content is the same however the pitch and volume is now different. It seems to only affect the automated announcement of: "doors open on [side] at ____." The destination part of the audio is also the same.
Are they tinkering with it? Does anyone know if the entire audio will be changed soon, e.g. at Lake on the Red Line, one can also transfer to the Blue Line?
Thanks, and great forum!