发明名称 |
AUDIO ENCODING DEVICE AND AUDIO ENCODING METHOD |
摘要 |
An audio encoding device includes a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute: detecting a plurality of lobes based on a frequency signal constituting an audio signal; calculating a masking threshold value of the frequency signal; allocating an amount of bits per unit frequency region to be allocated for encoding of the frequency signal on a basis of the masking threshold value; selecting a main lobe on a basis of bandwidth and power of the lobes; and controlling the encoding by reducing the amount of bits in a first region including a maximum value of the power in the main lobe. |
申请公布号 |
US2016118051(A1) |
申请公布日期 |
2016.04.28 |
申请号 |
US201514836355 |
申请日期 |
2015.08.26 |
申请人 |
FUJITSU LIMITED |
发明人 |
KISHI Yohei;KAMANO Akira;OTANI Takeshi |
分类号 |
G10L19/00 |
主分类号 |
G10L19/00 |
代理机构 |
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代理人 |
|
主权项 |
1. An audio encoding device comprising:
a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute: detecting a plurality of lobes based on a frequency signal constituting an audio signal; calculating a masking threshold value of the frequency signal; allocating an amount of bits per unit frequency region to be allocated for encoding of the frequency signal on a basis of the masking threshold value; selecting a main lobe on a basis of bandwidth and power of the lobes; and controlling the encoding by reducing the amount of bits in a first region including a maximum value of the power in the main lobe. |
地址 |
Kawasaki-shi JP |