Here is a list of all typedefs with links to the files they belong to:

audio_set_t : applications/lyrat_board_app/main/audio_amp_main.c, external_examples/1fa4e38f/lyrat_board_app/main/audio_amp_main.c, external_examples/b00f000e/applications/lyrat_board_app/main/audio_amp_main.c
cplx_sig_t : dsps_cplx_gen.h
dsps_resample_mr_t : dsps_resampler.h
dsps_resample_ph_t : dsps_resampler.h
esp_err_t : esp_err.h
fc32_t : dsp_types.h
fir_f32_t : dsps_fir.h
fir_s16_t : dsps_fir.h
image2d_t : dsp_types.h
image_3d_matrix_kalman_t : applications/azure_board_apps/graphics/3d_matrix/3d_matrix_src/graphics_support.h, external_examples/b00f000e/applications/azure_board_apps/graphics/3d_matrix/3d_matrix_src/graphics_support.h, external_examples/f9c2d4b3/azure_board_apps/graphics/3d_matrix/3d_matrix_src/graphics_support.h
image_3d_matrix_t : applications/azure_board_apps/graphics/3d_matrix/3d_matrix_src/graphics_support.h, external_examples/b00f000e/applications/azure_board_apps/graphics/3d_matrix/3d_matrix_src/graphics_support.h, external_examples/f9c2d4b3/azure_board_apps/graphics/3d_matrix/3d_matrix_src/graphics_support.h
led_strip_handle_t : led_strip_types.h
led_strip_t : led_strip_interface.h
out_d_type : dsps_cplx_gen.h
sc16_t : dsp_types.h
tusb_cdcacm_callback_t : tusb_cdc_acm.h
tusb_desc_strarray_device_t : tinyusb_types.h