Search Results for author: Amber Afshan

Found 7 papers, 0 papers with code

Attention-based conditioning methods using variable frame rate for style-robust speaker verification

no code implementations28 Jun 2022 Amber Afshan, Abeer Alwan

However, self-attentive embeddings perform weighted pooling such that the weights correspond to the importance of the frames in a speaker classification task.

Text-Independent Speaker Verification

Learning from human perception to improve automatic speaker verification in style-mismatched conditions

no code implementations28 Jun 2022 Amber Afshan, Abeer Alwan

Using the SITW evaluation tasks, which involve different conversational speech tasks, the proposed loss combined with self-attention conditioning results in significant relative improvements in EER by 2-5% and minDCF by 6-12% over baseline.

Speaker Verification

Sequence-level Confidence Classifier for ASR Utterance Accuracy and Application to Acoustic Models

no code implementations30 Jun 2021 Amber Afshan, Kshitiz Kumar, Jian Wu

We propose a cost-effective method of using CC scores to select an optimal adaptation data set, where we maximize ASR gains from minimal data.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +1

Variable frame rate-based data augmentation to handle speaking-style variability for automatic speaker verification

no code implementations8 Aug 2020 Amber Afshan, Jinxi Guo, Soo Jin Park, Vijay Ravi, Alan McCree, Abeer Alwan

For instance, when enrolled with conversation utterances, the EER increased to 3. 03%, 2. 96% and 22. 12% when tested on read, narrative, and pet-directed speech, respectively.

Data Augmentation Speaker Verification

Speaker discrimination in humans and machines: Effects of speaking style variability

no code implementations8 Aug 2020 Amber Afshan, Jody Kreiman, Abeer Alwan

Native listeners performed better than machines in the style-matched conditions (EERs of 6. 96% versus 14. 35% for read speech, and 15. 12% versus 19. 87%, for conversations), but for style-mismatched conditions, there was no significant difference between native listeners and machines.

Speaker Verification

Exploring the Use of an Unsupervised Autoregressive Model as a Shared Encoder for Text-Dependent Speaker Verification

no code implementations8 Aug 2020 Vijay Ravi, Ruchao Fan, Amber Afshan, Huanhua Lu, Abeer Alwan

A fusion of the x-vector/PLDA baseline and the SID/PLDA scores prior to PID fusion further improved performance by 15% indicating complementarity of the proposed approach to the x-vector system.

Text-Dependent Speaker Verification

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