Complex sentence: In 1961 Atal joined Bell Laboratories, where his subsequent research focused on acoustics and speech, making major contributions in the field of speech analysis, synthesis, and coding, including low bit-rate speech coding and automatic speech recognition.
Split into simpler sentences: In 1961 Atal joined Bell Laboratories, where his subsequent research focused on acoustics and speech. He has made major contributions in the field of speech analysis, synthesis, and coding, including low bit-rate speech coding and automatic speech recognition.