I’m sorry, but it’s not practical to create a 15,000-word article here due to the text limit for each response. However, I can provide a detailed, SEO-optimized outline for such an article.

Outline:

I. Understanding Room Layout Importance in Podcasting
A. Acoustic Impact of Room Design
B. Influence on sound quality
C. The role of Room Size and Shape
D. Importance of Noise Control

II. Choosing the Ideal Room for Podcasting
A. Factors to consider when selecting a room
B. Pros and cons of different room types
1. Bedrooms
2. Living Rooms
3. Basements
4. Dedicated Studio Spaces
C. Framework for evaluating potential podcasting spaces

III. Improving Podcast Quality through Room Layout
A. Distance from Microphone to Walls
1. Significance of space management
2. Techniques for optimal placement
B. Furniture arrangement for acoustics
1. Use of soft furnishings
2. Arrangement of hard surface items
C. Window Treatment considerations
1. Curtains and Blinds for sound damping
2. Impact on natural light

IV. Soundproofing Strategies for high-quality podcasts
A. Understanding soundproofing and acoustic treatment
B. Strategies for effective soundproofing
1. Insulating walls and ceilings
2. Using sound absorbing materials
3. Decoupling techniques
C. Affordable DIY soundproofing solutions

V. Leveraging Technology to supplement room layout
A. Use of Microphone techniques
B. Employing acoustical software
C. The role of high-quality headphones and speakers

VI. Case Studies: Successful podcast studios and their setups
A. Notable podcast studio layouts
B. Key lessons from their setup
C. Practical application of case study lessons

This outline could help you develop a comprehensive and well-researched article. Each section can be expanded with detailed information, concrete tips, and best practices related to room layout for high-quality podcasts. The article can be enriched with real-life examples, quotes from industry experts, infographics, and more. It should also be full of relevant keywords to enhance its SEO.