Studi dan Analisis Kinerja Mpeg Surround pada Bitrate 256 – 400 Kbps
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Abstract
MPEG Surround is one of the spatial audio codings that popularly used. MPEG Surround is generally used at a low bitrate such as 64, 96 and 160 kbps. MPEG Surround can be used at high bitrates, but the audio quality produced in the bitrate is not yet fully known. This paper investigates the effect of increase bitrate toward the increase of audio quality. The result showed a significant increase of the audio quality when the MPEG surround used in high bitrate. Accordingly, the MPEG Surround eligible for use in high bitrate to get better audio quality.
Keywords : Spatial Audio Coding dan MPEG Surround
Abstrak— MPEG Surround merupakan salah satu spatial audio coding yang populer digunakan. MPEG Surround umumnya digunakan pada bitrate rendah yaitu 64, 96, dan 160 kbps. MPEG Surround dapat digunakan pada bitrate tinggi, namun kualitas audio yang dihasilkan pada bitrate tersebut belum sepenuhnya diketahui. Paper ini menginvestigasi pengaruh kenaikan bitrate terhadap kenaikan kualitas audio. Hasil menunjukkan peningkatan kualitas audio yang cukup signifikan saat MPEG Surround digunakan pada bitrate tinggi. Dengan demikian MPEG Surround layak digunakan pada bitrate tinggi untuk mendapatkan kualitas audio yang lebih baik.
Kata Kunci :Spatial Audio Coding dan MPEG Surround
References
[2] E. Nakasu, “Super Hi-Vision on the horizon: A future TV system that conveys an enhanced sense of reality and presence,” IEEE Consumer Electronics Magazine, pp. 36–42, 2012.
[3] T. Ito, “Future television - super hi-vision and beyond,” in Proc. IEEE Asian Solid State Circuits Conference, 2010.
[4] T. Sugimoto, Y. Nakayama, and S. Oode, “Bitrate of 22.2 multichannel sound signal meeting broadcast quality,” in Proc. 137th AES Convention, 2014.
[5] K. Hamasaki, K. Hiyama, and R. Okumura, “The 22.2 Multichannel Sound System and Its Application,” in Proc. 118th AES Convention, 2005.
[6] J. Herre et al., “MPEG-H Audio—The New Standard for Universal Spatial/3D Audio Coding,” J. Audio Eng. Soc., vol. 62, no. 12, pp. 821–830, 2014.
[7] J. Herre et al., “MPEG Surround - The ISO/MPEG Standard for Efficient and Compatible Multichannel Audio Coding,” J. Audio Eng. Soc., vol. 56, no. 11, pp. 932–955, 2008.
[8] J. Hilpert and S. Disch, “The MPEG Surround Coding Standard [Standard in a nutshell],” IEEE Signal Processing Magazine, pp. 148–152, 2009.
[9] J. Breebaart et al., “Background, concept, and architecture for the recent MPEG surround standard on multichannel audio compression,” J. Audio Eng. Soc., vol. 55, no. 5, pp. 331–351, 2007.
[10] “Report on MPEG Surround Verification Test,” 2007.
[17] ITU-R, “Method for Subjective Assessment of Small Impairments in Audio Systems Including Multichannel Sound Systems,” Recommendation ITU-R BS.1116-1, 1997.
[11] I. Elfitri, A. Luthfi, and Fitrilina, “R-TTT Module with Modified Residual Signal for Improving Multichannel Audio Signal Accuracy,” in Proceedings of IEEE, 2015, pp. 207–2011.
[12] I. Elfitri, B. Gunel, and A. Kondoz, “Multichannel Audio Coding Based on Analysis by Synthesis,” in Proceedings of the IEEE, 2011, pp. 657–670.
[13] I. Elfitri, R. Kurnia, and D. Harneldi, “Experimental Study on Improved Parametric Stereo for Bit Rate Scalable Audio Coding,” in Proceedings of the IEEE, 2014.
[14] I. Elfitri, M. Muharam, and M. Sobirin, “Distortion Analysis of Hierarchical Mixing Technique on MPEG Surround Standard,” in Proceedings of the IEEE.
[15] I. Elfitri, X. Shi, and A. Kondoz, “Analysis by synthesis spatial audio coding,” IET Signal Process., vol. 3, no. 1, pp. 1–8, 2013.
[16] I. Elfitri, H. D. Laksono, and A. Permana, “Balanced-Delay Filterbank for Closed-Loop Spatial Audio Coding,” in Proceedings of IEEE, 2015.