Audio Time-Scale Modification with Temporal Compressing Networks
Abstract
We propose a novel approach for time-scale modification of audio signals. Unlike traditional methods that rely on the framing technique or the short-time Fourier transform to preserve the frequency during temporal stretching, our neural network model encodes the raw audio into a high-level latent representation, dubbed Neuralgram, where each vector represents 1024 audio sample points. Due to a sufficient compression ratio, we are able to apply arbitrary spatial interpolation of the Neuralgram to perform temporal stretching. Finally, a learned neural decoder synthesizes the time-scaled audio samples based on the stretched Neuralgram representation. Both the encoder and decoder are trained with latent regression losses and adversarial losses in order to obtain high-fidelity audio samples. Despite its simplicity, our method has comparable performance compared to the existing baselines and opens a new possibility in research into modern time-scale modification. Audio samples can be found at https://tsmnet-mmasia23.github.io
Cite
@article{arxiv.2210.17152,
title = {Audio Time-Scale Modification with Temporal Compressing Networks},
author = {Ernie Chu and Ju-Ting Chen and Chia-Ping Chen},
journal= {arXiv preprint arXiv:2210.17152},
year = {2023}
}