+ bool get_output_stream_params(int device_output,
+ PaStreamParameters& outputParam) const;
+ bool get_input_stream_params(int device_input,
+ PaStreamParameters& inputParam) const;
+
+ bool set_sample_rate_and_latency_from_stream();
+ bool allocate_buffers_for_blocking_api (uint32_t samples_per_period);
+
+ PaErrorCode pre_stream_open(int device_input,
+ PaStreamParameters& inputParam,
+ int device_output,
+ PaStreamParameters& outputParam);