APPLY QMF FILTER TAPE IN DIGITAL FILTER BAND TO COMPRESS DIGITAL AUDIO SIGNALS

  • Hoang Thi Hang Hung Yen University of Technology and Education
  • Nguyen Van Vinh Hung Yen University of Technology and Education
Keywords: QMF, Quadrature Mirror Filters, ADC, Analog-to-Digital Converter, Sub-band coding

Abstract

In this article, we analyze the digital audio signal compression process based on sub-band coding in combination with QMF (QMF, Quadrature Mirror Filters). Through matlab simulations, the results showed that the signal spectrum energy distributed in sub-bandes during signal compression using subband encryption had a better compression ratio than the original signal direct compression method.

References

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Hồ Văn Sung, Xử lý số tín hiệu đa tốc độ và dàn lọc – Lý thuyết và ứng dụng, 2007, NXB Khoa học và kỹ thuật.

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Published
2021-12-31
How to Cite
Hoang Thi Hang, & Nguyen Van Vinh. (2021). APPLY QMF FILTER TAPE IN DIGITAL FILTER BAND TO COMPRESS DIGITAL AUDIO SIGNALS. UTEHY Journal of Science and Technology, 32, 26-32. Retrieved from https://tapchi.utehy.edu.vn/index.php/jst/article/view/495