NAAQA: A Neural Architecture for Acoustic Question Answering

• URL: http://arxiv.org/abs/2106.06147v3
• Date: Fri, 12 Jan 2024 14:58:10 GMT
• Title: NAAQA: A Neural Architecture for Acoustic Question Answering
• Authors: Jerome Abdelnour, Jean Rouat, Giampiero Salvi
• Abstract summary: The goal of the Acoustic Question Answering (AQA) task is to answer a free-form text question about the content of an acoustic scene. We propose a new benchmark for AQA, namely CLEAR2, that emphasizes the specific challenges of acoustic inputs. We also introduce NAAQA, a neural architecture that leverages specific properties of acoustic inputs.
• Score: 8.364707318181193
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The goal of the Acoustic Question Answering (AQA) task is to answer a free-form text question about the content of an acoustic scene. It was inspired by the Visual Question Answering (VQA) task. In this paper, based on the previously introduced CLEAR dataset, we propose a new benchmark for AQA, namely CLEAR2, that emphasizes the specific challenges of acoustic inputs. These include handling of variable duration scenes, and scenes built with elementary sounds that differ between training and test set. We also introduce NAAQA, a neural architecture that leverages specific properties of acoustic inputs. The use of 1D convolutions in time and frequency to process 2D spectro-temporal representations of acoustic content shows promising results and enables reductions in model complexity. We show that time coordinate maps augment temporal localization capabilities which enhance performance of the network by ~17 percentage points. On the other hand, frequency coordinate maps have little influence on this task. NAAQA achieves 79.5% of accuracy on the AQA task with ~4 times fewer parameters than the previously explored VQA model. We evaluate the perfomance of NAAQA on an independent data set reconstructed from DAQA. We also test the addition of a MALiMo module in our model on both CLEAR2 and DAQA. We provide a detailed analysis of the results for the different question types. We release the code to produce CLEAR2 as well as NAAQA to foster research in this newly emerging machine learning task.

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