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.
Atal joined Bell Laboratories. This was in 1961. This was including low bit-rate speech coding. This was including low bit-automatic speech recognition. His subsequent research focused on acoustics and speech. His subsequent research was making major contributions in the field of speech analysis. His subsequent research was coding. Speech analysis was synthesis.