Binaural cue coding-part II: schemes and applications

Faller, Christof; Baumgarte, Frank

doi:10.1109/tsa.2003.818108

Cited by 167 publications

(119 citation statements)

References 17 publications

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“…where P m,b and P d,b are the estimated power of the mastering and down-mix signals, respectively, while b is a parameter band index which indicates the spectral region containing several spectral components and K is the number of parameter band [3]. Using MDG b and P m,b , the power of down-mix signal can be obtained as…”

Section: Simple Mastering Signal Processing In Mpeg Saoc and Its Problemmentioning

confidence: 99%

“…This interactive audio service, however, has a constraint that a high bit-rate should be guaranteed because the various audio objects need to be separately coded. As an approach to solve the bit-rate problem in the interactive audio service, spatial audio object coding (SAOC) schemes have been introduced and developed [3], [4]. Especially, the MPEG Audio subgroup has been developing MPEG SAOC as a standard of the SAOC [5]- [8].…”

Section: Introductionmentioning

confidence: 99%

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Mastering Signal Processing in MPEG SAOC

Kim

Hahn

Kim

2012

IEICE Trans. Inf. & Syst.

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SUMMARYMPEG spatial audio object coding (SAOC) is a new audio coding standard which efficiently represents various audio objects as a down-mix signal and spatial parameters. MPEG SAOC has a backward compatibility with existing playback systems for the down-mix signal. If a mastering signal is used for providing CD-like sound quality instead of the down-mix signal, an output signal decoded with the mastering signal may be easily degraded due to the difference between the down-mix and the mastering signals. To successfully use the mastering signal in MPEG SAOC, the difference between two signals should be eliminated. As a simple mastering signal processing, we propose a mastering signal processing using the mastering down-mix gain (MDG) which is similar to the arbitrary down-mix gain of MPEG Surround. Also, we propose an enhanced mastering signal processing using the MDG bias in order to reduce quantization errors of the MDG. Experimental results show that the proposed schemes can improve sound quality of the output signal decoded with the mastering signal. Especially, the enhanced method shows better performance than the simple method in the aspects of the quantization errors and the sound quality. key words: MPEG SAOC, down-mix signal, mastering signal, mastering down-mix gain

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Section: Simple Mastering Signal Processing In Mpeg Saoc and Its Problemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mastering Signal Processing in MPEG SAOC

Kim

Hahn

Kim

2012

IEICE Trans. Inf. & Syst.

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“…These psychoacoustic concepts are adopted by SAC approaches to derive level and time or phase-based spatial cues from multichannel audio. This paper employs spatial cues originally introduced by the following SAC schemes: Binaural Cue Coding (BCC) [4] and Parametric Stereo Coding (PSC) [5].…”

Section: Spatial Audio Codingmentioning

confidence: 99%

“…and a reference channel (taken to be channel one i.e. C = 1), for each frame, m, and each subband, b [4]:…”

Section: Spatial Audio Coding Cuesmentioning

confidence: 99%

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Varying Microphone Patterns for Meeting Speech Segmentation Using Spatial Audio Cues

Cheng

Burnett

Ritz

2006

Advances in Multimedia Information Processing - PCM 2006

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Varying microphone patterns for meeting speech segmentation using spatial audio cues AbstractMeetings, common to many business environments, generally involve stationary participants. Thus, participant location information can be used to segment meeting speech recordings into each speaker's 'turn' . The authors' previous work proposed the use of spatial audio cues to represent the speaker locations. This paper studies the validity of using spatial audio cues for meeting speech segmentation by investigating the effect of varying microphone pattern on the spatial cues. Experiments conducted on recordings of a real acoustic environment indicate that the relationship between speaker location and spatial audio cues strongly depends on the microphone pattern. Disciplines Physical Sciences and Mathematics Publication DetailsCheng, E., Burnett, I. Abstract. Meetings, common to many business environments, generally involve stationary participants. Thus, participant location information can be used to segment meeting speech recordings into each speaker's 'turn'. The authors' previous work proposed the use of spatial audio cues to represent the speaker locations. This paper studies the validity of using spatial audio cues for meeting speech segmentation by investigating the effect of varying microphone pattern on the spatial cues. Experiments conducted on recordings of a real acoustic environment indicate that the relationship between speaker location and spatial audio cues strongly depends on the microphone pattern.

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Moreau¹

2013

Tools for Signal Compression

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Binaural cue coding-part II: schemes and applications

Abstract: Abstract-Binaural

Cited by 167 publications

References 17 publications

Mastering Signal Processing in MPEG SAOC

Mastering Signal Processing in MPEG SAOC

Varying Microphone Patterns for Meeting Speech Segmentation Using Spatial Audio Cues

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