Real-Time Conversion of Stereo Audio to 5.1 Channel Audio for Providing Realistic Sounds
Chan Jun Chun, Yong Guk Kim, Jong Yeol Yang, and Hong Kook Kim
It discusses issues associated with the real-time implementation of upmixing stereo audio into 5.1 channel audio in order to improve audio realism. First, we review four different upmixing methods, including a passive surround decoding method, a least-mean-square based upmixing method, a principal component analysis based upmixing method, and an adaptive panning method. After that, we implement a simulator that includes the upmixing methods and audio controls to play both stereo and upmixed 5.1 channel audio signals.
Finally, we carry out a MUSHRA test to compare the quality of the upmixed 5.1 channel audio signals to that of the original stereo audio signal. It is shown from the test that the upmixed 5.1 channel audio signals generated by the four different upmixing methods are preferred to the original stereo audio signals.
კატეგორია:
წელი:
2009
ენა:
english
გვერდები:
10
ფაილი:
PDF, 174 KB
IPFS:
,
english, 2009