Audio quantization
First Claim
Patent Images
1. A method comprising:
- a processor of an electronic device;
determining whether an error resulting with a non-predictive quantization of parameters representing an audio signal segment lies below a predetermined threshold value;
providing parameters representing an audio signal segment quantized with said non-predictive quantization as a part of an encoded audio signal at least in case it is determined that said error resulting with said non-predictive quantization of said parameters representing an audio signal segment lies below a predetermined threshold value; and
providing otherwise parameters representing an audio signal segment quantized with predictive quantization as a part of an encoded audio signal.
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Abstract
For supporting a selection of a predictive or non-predictive quantization in the scope of an audio signal coding, it is determined whether an error resulting with a non-predictive quantization of an audio signal segment lies below a predetermined threshold value. An audio signal segment quantized with the non-predictive quantization is provided as a part of an encoded audio signal at least in case it is determined that the error resulting with the non-predictive quantization of the audio signal segment lies below a predetermined threshold value. Otherwise, an audio signal segment quantized with predictive quantization is provided as a part of an encoded audio signal.
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Citations
28 Claims
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1. A method comprising:
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a processor of an electronic device; determining whether an error resulting with a non-predictive quantization of parameters representing an audio signal segment lies below a predetermined threshold value; providing parameters representing an audio signal segment quantized with said non-predictive quantization as a part of an encoded audio signal at least in case it is determined that said error resulting with said non-predictive quantization of said parameters representing an audio signal segment lies below a predetermined threshold value; and providing otherwise parameters representing an audio signal segment quantized with predictive quantization as a part of an encoded audio signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus comprising:
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at least one processing component; and at least one memory including computer program code; to the at least one memory and the computer program code configured to, with the at least one processing component, cause the apparatus at least to; determine whether an error resulting with a non-predictive quantization of parameters representing an audio signal segment lies below a predetermined threshold value; provide an audio signal segment quantized with said non-predictive quantization as a part of parameters representing an encoded audio signal at least in case it is determined that said error resulting with said non-predictive quantization of said parameters lies below a predetermined threshold value; and provide otherwise parameters representing an audio signal segment quantized with predictive quantization as a part of an encoded audio signal. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus comprising:
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means for determining whether an error resulting with a non-predictive quantization of parameters representing an audio signal segment lies below a predetermined threshold value; means for providing parameters representing an audio signal segment quantized with said non-predictive quantization as a part of an encoded audio signal at least in case it is determined that said error resulting with said non-predictive quantization of said parameters representing audio signal segment lies below a predetermined threshold value; and means for providing otherwise parameters representing an audio signal segment quantized with predictive quantization as a part of an encoded audio signal.
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20. A non-transitory computer readable medium in which program code is stored, said program code realizing the following when executed by a processor:
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determining whether an error resulting with a non-predictive quantization of parameters representing an audio signal segment lies below a predetermined threshold value; providing parameters representing an audio signal segment quantized with said non-predictive quantization as a part of an encoded audio signal at least in case it is determined that said error resulting with said non-predictive quantization of said parameters representing an audio signal segment lies below a predetermined threshold value; and providing otherwise parameters representing an audio signal segment quantized with predictive quantization as a part of an encoded audio signal. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
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Specification