According to recent statistics Korea, China and India are currently the most important markets in Asia for music sales. Unlike North America where radio is the prominent source of music delivery, Asian countries are dominated by mobile music downloads and mobile music players.
Check the full article here:
Asia music industry statistics
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I’m seeking info for sanctuary reverberation absorbsion material ( panels) and best placement.
There may be apps that do that. You can definitely find spectrum analyzers that will measure ultra low.
Is there an APP that can measure the ultra low frequency levels?