Deep Learning-Based Speech Enhancement for Robust Speech Recognition in Noisy Environments
C S Sowmya, Neeraj Das, Divya Sharma, Sanjoy Mondal, Ishika Soni, Naveen Kumar V · 2025
It is a very important problem since voice-controlled devices and speech-to-text transcription are only two examples of how automatic recognition of spoken language in noisy environments may impact our lives. Still, speech recognition systems may only sometimes work effectively in background noise, which can result in errors and misinterpretations. This problem dealt with the deep learning model-based speech enhancement techniques for robust ASR in adverse environments. These methods employ deep learning to learn and deny the noisy speech signals, rendering it a better-suited input for recognition in a typical ASR system. Deep learning-based speech enhancement is a machine-learning system using a huge, loud, clean speech data dataset to train DNN. So, the network is trained to find a mapping from some noisy speech signals to ideally clean versions of these speech sounds by removing its background noise. This spectral representation of speech will now have reduced noise, which the ASR much more easily recognizes. These methods have significantly improved against traditional speech enhancement techniques in demising, eventually improving recognition performance. They can turn in high noise levels and are resilient against acoustics drifts. This makes them well-suited to real-world applications when noise levels can vary.