RtAudioWrapper

Wrapper classes of RtAudio for myself.

prerequisite

sudo apt-get -y install libasound2-dev

Example for inclusion

• CMakeLists.txt

set(LINKLIBS)
set(COMPILE_OPTION)
set(SRC)
set(INCL)

list(APPEND INCL
lib/RtAudioWrapper
)

include(lib/RtAudioWrapper/RtAudio.cmake)
include(lib/RtAudioWrapper/Libsamplerate.cmake)

add_executable(${PROJECT_NAME} ${SRC})
target_include_directories(${PROJECT_NAME}	PRIVATE	${INCL}  )
target_link_libraries(${PROJECT_NAME} ${LINKLIBS})
target_compile_options(${PROJECT_NAME} PRIVATE ${COMPILE_OPTION} )

Example for Usage

// TODO

TIPS

When the number of channel is large(ex 16), it is good to use large input_size.
Using large input_size is easily done in linux system.
But in Windows you need to change driver's buffer size manually, and set input_size param as well.

Why do I need to use resampler ?

Usually input files I use are 16kHz.
And most of output device don't support 16kHz, mostly 48kHz.

NOTICE

• RtAudio
  A set of C++ classes that provide a common API for realtime audio input/output across Linux (native ALSA, JACK, PulseAudio and OSS), Macintosh OS X (CoreAudio and JACK), and Windows (DirectSound, ASIO, and WASAPI) operating systems.

• libsamplerate
  An audio Sample Rate Conversion library