Frequency Domain Long-Term Prediction for Low Delay General Audio Coding

Guo N, Edler B (2021)


Publication Language: English

Publication Type: Journal article, Letter

Publication year: 2021

Journal

DOI: 10.1109/lsp.2021.3084503

Abstract

In this paper we propose a long-term prediction
method for low delay transform domain general audio coders.
This Frequency Domain Joint Harmonics Prediction (FDJHP)
method operates directly in the Modified Discrete Cosine Transform
(MDCT) domain and can enhance the coding efficiency,
even under very low frequency resolutions. We compare this
new method with state-of-the-art MDCT based methods by
analyzing bitrate savings and by a listening test using test signals
with strong harmonic components. The results indicate that it
outperforms an existing method, which also directly operates
in the frequency domain. Additionally, we show how it can be
combined with the existing techniques into an adaptive system,
where the different methods can complement each other.

Authors with CRIS profile

How to cite

APA:

Guo, N., & Edler, B. (2021). Frequency Domain Long-Term Prediction for Low Delay General Audio Coding. IEEE Signal Processing Letters. https://dx.doi.org/10.1109/lsp.2021.3084503

MLA:

Guo, Ning, and Bernd Edler. "Frequency Domain Long-Term Prediction for Low Delay General Audio Coding." IEEE Signal Processing Letters (2021).

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