It sounds like you're looking for the audio content (listening exercises, dialogues, pronunciation) from Touchstone 3, which is a popular English coursebook by Cambridge University Press (CEFR level B1).
Additional Resources
, audio can be played at 80% speed to assist with comprehension. Amazon.com Access and Resources Touchstone Level 3 Student's Book with Audio CD/CD-ROM touchstone 3 audio
Depending on your version of the book (Second Edition is the most common), there are several ways to get the audio: It sounds like you're looking for the audio