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Shrikant Venkataramani

6 accepted papers

2020

Efficient Trainable Front-Ends for Neural Speech Enhancement

ICASSP 2020accepted

Many neural speech enhancement and source separation systems operate in the time-frequency domain. Such models often benefit from making their Short-Time Fourier Transform (STFT) front-ends trainable. In current literature, these are implemented as large Discrete Fourier Transform matrices; which ar…

Cited by 4SourceScholar
2020

End-To-End Non-Negative Autoencoders for Sound Source Separation

ICASSP 2020accepted

Discriminative models for source separation have recently been shown to produce impressive results. However, when operating on sources outside of the training set, these models can not perform as well and are cumbersome to update. Classical methods like Nonnegative Matrix Factorization (NMF) provide…

Cited by 0SourceScholar
2020

Two-Step Sound Source Separation: Training On Learned Latent Targets

ICASSP 2020accepted

In this paper, we propose a two-step training procedure for source separation via a deep neural network. In the first step we learn a transform (and it's inverse) to a latent space where masking-based separation performance using oracles is optimal. For the second step, we train a separation module…

Cited by 0SourceScholar
2019

Class-conditional Embeddings for Music Source Separation

ICASSP 2019accepted

Isolating individual instruments in a musical mixture has a myriad of potential applications, and seems imminently achievable given the levels of performance reached by recent deep learning methods. While most musical source separation techniques learn an independent model for each instrument, we pr…

Cited by 0SourceScholar
2019

Unsupervised Deep Clustering for Source Separation: Direct Learning from Mixtures Using Spatial Information

ICASSP 2019accepted

We present a monophonic source separation system that is trained by only observing mixtures with no ground truth separation information. We use a deep clustering approach which trains on multichannel mixtures and learns to project spectrogram bins to source clusters that correlate with various spati…

Cited by 0SourceScholar