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US 2010/0250260 A1Published application
Encoder
OwnerLasse Laaksonen, Mikko Tammi +2inventors
InventorsLasse Laaksonen, Mikko Tammi, Adriana Vasilache, Anssi Ramo
Life of this patent
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Abstract
A method including generating from a first audio signal, and via a first encoding and decoding of the first audio signal, a second audio signal; determining at least one energy difference value between the first audio signal and the second audio signal; and calculating at least one signal shaping factor dependent on the at least one energy difference value.
Claims35
A method comprising:
- generating from a first audio signal, and via a first encoding and decoding of the first audio signal, a second audio signal;
- determining at least one energy difference value between the first audio signal and the second audio signal;
- and
- calculating at least one signal shaping factor dependent on the at least one energy difference value.
1 more element
A method comprising:
- receiving an encoded signal comprising at least in part a signal shaping factor signal;
- decoding the encoded signal to produce a synthetic audio signal;
- determining at least one signal shaping factor the synthetic signal from the received gain factor signal;
- and
- applying the at least one signal shaping factor to the synthetic audio signal.
2 more elements
18-46. (canceled)
An apparatus comprising:
- at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:
- generate from a first audio signal, and via a first encoding and decoding of the first audio signal, a second audio signal;
- determine at least one energy difference value between the first audio signal and the second audio signal;
- and
- calculate at least one signal shaping factor dependent on the at least one energy difference value.
2 more elements
An apparatus comprising:
- at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:
- receive an encoded signal comprising at least in part a signal shaping factor signal;
- decode the encoded signal to produce a synthetic audio signal;
- determine at least one signal shaping factor for the synthetic signal from the received signal shaping factor signal;
- and
- apply the at least one signal shaping factor to the synthetic audio signal.
3 more elements
Dependencies are inferred from the claim text.