Freeze if wished. Mangoes can be frozen. The skin will turn black but the flesh will stay in good condition (it will be just a little softer than prior to freezing). You can freeze either the entire mango or you can freeze chopped up pieces.
James, you need to do a little research on ASIO Direct Monitoring. It's a standard tha allows an ASIO host to enable hardware monitoring in an interface that supports it. This bypasses The A/D/A converters and is true, zero-latency direct monitoring.
ABC is considered a direct observation format because you have to be directly observing the behavior when it occurs. Typically it is a format that is used when an external observer is available who has the time and ability to observe and document behaviors during specified periods of the day.