function(download_kaldi_native_fbank)
  if(CMAKE_VERSION VERSION_LESS 3.11)
    # FetchContent is available since 3.11,
    # we've copied it to ${CMAKE_SOURCE_DIR}/cmake/Modules
    # so that it can be used in lower CMake versions.
    message(STATUS "Use FetchContent provided by sherpa-ncnn")
    list(APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/Modules)
  endif()

  include(FetchContent)

  set(kaldi_native_fbank_URL  "https://github.com/csukuangfj/kaldi-native-fbank/archive/refs/tags/v1.6.tar.gz")
  set(kaldi_native_fbank_HASH "SHA256=1142831bfbfd2da3a2f25e10de12cfa76219006ed47f379b7f58d469bbe461eb")

  set(KALDI_NATIVE_FBANK_BUILD_TESTS OFF CACHE BOOL "" FORCE)
  set(KALDI_NATIVE_FBANK_BUILD_PYTHON OFF CACHE BOOL "" FORCE)

  FetchContent_Declare(kaldi_native_fbank
    URL               ${kaldi_native_fbank_URL}
    URL_HASH          ${kaldi_native_fbank_HASH}
  )

  FetchContent_GetProperties(kaldi_native_fbank)
  if(NOT kaldi_native_fbank_POPULATED)
    message(STATUS "Downloading kaldi-native-fbank ${kaldi_native_fbank_URL}")
    FetchContent_Populate(kaldi_native_fbank)
  endif()
  message(STATUS "kaldi-native-fbank is downloaded to ${kaldi_native_fbank_SOURCE_DIR}")
  message(STATUS "kaldi-native-fbank's binary dir is ${kaldi_native_fbank_BINARY_DIR}")

  add_subdirectory(${kaldi_native_fbank_SOURCE_DIR} ${kaldi_native_fbank_BINARY_DIR} EXCLUDE_FROM_ALL)

  target_include_directories(kaldi-native-fbank-core
    INTERFACE
      ${kaldi_native_fbank_SOURCE_DIR}/
  )
endfunction()

download_kaldi_native_fbank()