प्रेक्षागृहाणां सर्वेषां तस्मान्मध्यममिष्यते । यावत्पाठ्यं च गेयं च तत्र श्रव्यतरं भवेत् ॥ २१॥
Among all the playhouses, the medium-sized one is considered the best, where the reading and singing are more pleasant and easier to hear.
english translation