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040000 tree a3671a6fb9453e164fd4e8e8b55bf97c10df020f	hal
040000 tree 6913d327741ccc0375ee8759c95c3e2a748e91bb	legacy
040000 tree 8aea49671bb481490674dc9394a201a60c52b6a7	post_proc
040000 tree 7b543a598fa076e764b334a0f0a164be2c433297	visualizer
040000 tree da15804f4ec1bfb00b849643e1ea3f9d05b4239d	voice_processing