Noise-shaping device and method with improved losless compression and good audio quality for high fidelity audio

D. Reefman; P.J.A. Harpe; E.E. Janssen

Noise-shaping device and method with improved losless compression and good audio quality for high fidelity audio

D. Reefman (Inventor)
, P.J.A. Harpe (Inventor)
, E.E. Janssen (Inventor)

Research output: Patent › Patent publication

2 Downloads (Pure)

Abstract

Improved sigma-delta modulator (SDM) for 1-bit digital audio noise shaping. It is the object to produce a bit stream that is compatible with the Scarlet Book specification (Super Audio CD standard, SACD) and that achieves a higher lossless compression ratio when compressed and decompressed according to the standard. This goal is achieved by using a trellis-based SDM and/or a prediction filter within the SDM that is similar or identical to the prediction filter in the encoder. The trellis SDM is designed to produce a predicted signal from a range of candidate signals that is as close to the input signal as possible.

Original language	English
Patent number	EP1652308
Publication status	Published - 3 May 2006

Cite this

@misc{2829fa0934224008b989d51861cb398d,

title = "Noise-shaping device and method with improved losless compression and good audio quality for high fidelity audio",

abstract = "Improved sigma-delta modulator (SDM) for 1-bit digital audio noise shaping. It is the object to produce a bit stream that is compatible with the Scarlet Book specification (Super Audio CD standard, SACD) and that achieves a higher lossless compression ratio when compressed and decompressed according to the standard. This goal is achieved by using a trellis-based SDM and/or a prediction filter within the SDM that is similar or identical to the prediction filter in the encoder. The trellis SDM is designed to produce a predicted signal from a range of candidate signals that is as close to the input signal as possible.",

author = "D. Reefman and P.J.A. Harpe and E.E. Janssen",

year = "2006",

month = may,

day = "3",

language = "English",

type = "Patent",

note = "EP1652308",

}

TY - PAT

T1 - Noise-shaping device and method with improved losless compression and good audio quality for high fidelity audio

AU - Reefman, D.

AU - Harpe, P.J.A.

AU - Janssen, E.E.

PY - 2006/5/3

Y1 - 2006/5/3

N2 - Improved sigma-delta modulator (SDM) for 1-bit digital audio noise shaping. It is the object to produce a bit stream that is compatible with the Scarlet Book specification (Super Audio CD standard, SACD) and that achieves a higher lossless compression ratio when compressed and decompressed according to the standard. This goal is achieved by using a trellis-based SDM and/or a prediction filter within the SDM that is similar or identical to the prediction filter in the encoder. The trellis SDM is designed to produce a predicted signal from a range of candidate signals that is as close to the input signal as possible.

AB - Improved sigma-delta modulator (SDM) for 1-bit digital audio noise shaping. It is the object to produce a bit stream that is compatible with the Scarlet Book specification (Super Audio CD standard, SACD) and that achieves a higher lossless compression ratio when compressed and decompressed according to the standard. This goal is achieved by using a trellis-based SDM and/or a prediction filter within the SDM that is similar or identical to the prediction filter in the encoder. The trellis SDM is designed to produce a predicted signal from a range of candidate signals that is as close to the input signal as possible.

UR - http://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20060503&DB=EPODOC&locale=en_EP&CC=EP&NR=1652308A1&KC=A1&ND=4

M3 - Patent publication

M1 - EP1652308

ER -

Noise-shaping device and method with improved losless compression and good audio quality for high fidelity audio

Abstract

Other files and links

Fingerprint

Cite this