Audio MIDI Setup -> Audio Devices -> Built-in Input has four configurable audio parameters:
- Sample Rate
- Sample Size
- Channel Volume
- Hardware Rate Converter
The Hardware Rate Converter has three options:
This "Hardware Rate Converter" has basically no google presence. Having a decent understanding of digital audio I can infer what these three options will do, but I don't feel confident knowing what the specific correlation is between these options and the actual bits being processed by my mac on input.
So. Where can I find general specs on this thing? I'll settle for just knowing what (if any) latency these three options incur.
Macbook Pro 10.7.3 (11D50)
15-inch, 2.53GHz, Mid 2009
2.53 GHz Intel Core 2 Duo
Memory 4 GB 1067 MHz DDR3
Intel High Definition Audio, Audio ID: 76