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Speech coding serves as a means of data compression, aiming to decrease the expenses related to data storage and transmission. The efficacy of compressing speech efficiently through neural networks has been demonstrated in methods using vector quantization (VQ). However, the complex procedure of VQ makes it challenging to fit into frameworks and limits compression at discrete bitrate points. This paper proposes a neural speech compression framework, which achieves flexible bitrate speech reconstruction through compact latent representation and better entropy estimation.
Sun et al. (Tue,) studied this question.