Hi According Android official website, "An audio source defines both a default physical source of audio signal, and a recording configuration.", but I still have below questions, could help provide more information about them? - Does all audio sound cards support all the source? If it's possible two or three sources are mapping into only one hardware port? - I see fast capture use VOICE_PERFORMANCE source, and opensl use AUDIO_SOURCE_DEFAULT, I assume fast capture is Java version of OpenSL, are they totally different? According the latency test, they almost the same, are the almost the same from data pipeline perspective?
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