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音频输入采样率和输出采样率
音频输入采样率和输出采样率需要一样吗,不一样会有什么影响?
输入信息:
[code]/usr/lib # cat /proc/umap/ai
[AI] Version: [Hi3519V101_MPP_V2.0.3.0 B060 Release], Build Time: [May 13 2017, 17:40:55]
-----AI DEV ATTR----------------------------------------------------------------
AiDev WorkMod SampR BitWid ChnCnt ClkSel SoundMod PoiNum ExFlag FrmNum
0 i2s_mas 16kHZ 16bit 1 0 mono 320 1 30
-----AI DEV STATUS0-------------------------------------------------------------
AiDev IntCnt fifoCnt buffInt FrmTime MaxFrmTime TranLen IsrTime
0 21445 0 0 20006 22032 640 113
-----AI DEV STATUS1-------------------------------------------------------------
AiDev MaxIsrTime CBPhy CBSize ROffSet WOffSet
0 165 9fa75000 1920 280 0
-----AI DEV EXTEND STATUS-------------------------------------------------------
AiDev enTrack bMute Volume
0 3 N 0
-----AI CHN STATUS--------------------------------------------------------------
AiDev AiChn State Read Write BufFul UsrQueLost UsrFrmDepth u32Data0 u32Data1 UserGet UserRls
0 0 enable 0 0 0 0 30 ffc40097 ac0020 21445 21445
-----AI CHN RESAMPLE STATUS-----------------------------------------------------
AiDev AiChn State bResmp PoiNum InSampR OutSampR
0 0 enable Y 320 16kHZ 8kHZ
-----AI CHN VQE STATUS0---------------------------------------------------------
AiDev AiChn State bVqe workmod RATE PoiNum GainVol bAnr bAgc bEq bHpf bAec bRnr bHdr bDrc bPeq WrFile
0 0 enable Y comm 8kHZ 4096 0 Y N N Y N N N N N N
-----AI CHN VQE STATUS1---------------------------------------------------------
AiDev AiChn State bAnr bUsrmod NrIntensity NoiseDbThr SpProSwi
0 0 enable Y N 25 30 0
-----AI CHN VQE STATUS2---------------------------------------------------------
AiDev AiChn State bHpf bUsrmod HpfFreq
0 0 enable Y N 80[/code]
输出信息:
[code]/usr/lib # cat /proc/umap/ao
[AO] Version: [Hi3519V101_MPP_V2.0.3.0 B060 Release], Build Time: [May 13 2017, 17:40:55]
-----AO DEV ATTR----------------------------------------------------------------
AoDev WorkMod SampR BitWid ChnCnt ClkSel SoundMod PoiNum ExFlag FrmNum
0 i2s_mas 8kHZ 16bit 1 0 mono 640 1 30
-----AO DEV STATUS0-------------------------------------------------------------
AoDev IntCnt fifoCnt buffInt FrmTime MaxFrmTime TranLen IsrTime
0 5838 0 0 80002 80215 1280 11
-----AO DEV STATUS1-------------------------------------------------------------
AoDev MaxIsrTime CBPhy CBSize ROffSet WOffSet
0 19 9fad3000 3840 0 a00
-----AO DEV EXTEND STATUS-------------------------------------------------------
AoDev enTrack bMute Volume
0 0 N 0
-----AO CHN STATUS--------------------------------------------------------------
AoDev AoChn State Read Write BufEmp u32Data0 u32Data1 bResmp PoiNum InSampR OutSampR
0 0 enable 0 0 5838 0 0 N 0 (null) (null)
-----AO CHN VQE STATUS0---------------------------------------------------------
AoDev AoChn State bVqe workmod RATE PoiNum bAnr bAgc bEq bHpf WrFile
0 0 enable N comm (null) 0 N N N N N[/code]
我现在输入采样率和输出采样率不一样,已经开启了语言降噪功能,但是还有噪音和回音,有什么处理思路那?、
输入信息:
[code]/usr/lib # cat /proc/umap/ai
[AI] Version: [Hi3519V101_MPP_V2.0.3.0 B060 Release], Build Time: [May 13 2017, 17:40:55]
-----AI DEV ATTR----------------------------------------------------------------
AiDev WorkMod SampR BitWid ChnCnt ClkSel SoundMod PoiNum ExFlag FrmNum
0 i2s_mas 16kHZ 16bit 1 0 mono 320 1 30
-----AI DEV STATUS0-------------------------------------------------------------
AiDev IntCnt fifoCnt buffInt FrmTime MaxFrmTime TranLen IsrTime
0 21445 0 0 20006 22032 640 113
-----AI DEV STATUS1-------------------------------------------------------------
AiDev MaxIsrTime CBPhy CBSize ROffSet WOffSet
0 165 9fa75000 1920 280 0
-----AI DEV EXTEND STATUS-------------------------------------------------------
AiDev enTrack bMute Volume
0 3 N 0
-----AI CHN STATUS--------------------------------------------------------------
AiDev AiChn State Read Write BufFul UsrQueLost UsrFrmDepth u32Data0 u32Data1 UserGet UserRls
0 0 enable 0 0 0 0 30 ffc40097 ac0020 21445 21445
-----AI CHN RESAMPLE STATUS-----------------------------------------------------
AiDev AiChn State bResmp PoiNum InSampR OutSampR
0 0 enable Y 320 16kHZ 8kHZ
-----AI CHN VQE STATUS0---------------------------------------------------------
AiDev AiChn State bVqe workmod RATE PoiNum GainVol bAnr bAgc bEq bHpf bAec bRnr bHdr bDrc bPeq WrFile
0 0 enable Y comm 8kHZ 4096 0 Y N N Y N N N N N N
-----AI CHN VQE STATUS1---------------------------------------------------------
AiDev AiChn State bAnr bUsrmod NrIntensity NoiseDbThr SpProSwi
0 0 enable Y N 25 30 0
-----AI CHN VQE STATUS2---------------------------------------------------------
AiDev AiChn State bHpf bUsrmod HpfFreq
0 0 enable Y N 80[/code]
输出信息:
[code]/usr/lib # cat /proc/umap/ao
[AO] Version: [Hi3519V101_MPP_V2.0.3.0 B060 Release], Build Time: [May 13 2017, 17:40:55]
-----AO DEV ATTR----------------------------------------------------------------
AoDev WorkMod SampR BitWid ChnCnt ClkSel SoundMod PoiNum ExFlag FrmNum
0 i2s_mas 8kHZ 16bit 1 0 mono 640 1 30
-----AO DEV STATUS0-------------------------------------------------------------
AoDev IntCnt fifoCnt buffInt FrmTime MaxFrmTime TranLen IsrTime
0 5838 0 0 80002 80215 1280 11
-----AO DEV STATUS1-------------------------------------------------------------
AoDev MaxIsrTime CBPhy CBSize ROffSet WOffSet
0 19 9fad3000 3840 0 a00
-----AO DEV EXTEND STATUS-------------------------------------------------------
AoDev enTrack bMute Volume
0 0 N 0
-----AO CHN STATUS--------------------------------------------------------------
AoDev AoChn State Read Write BufEmp u32Data0 u32Data1 bResmp PoiNum InSampR OutSampR
0 0 enable 0 0 5838 0 0 N 0 (null) (null)
-----AO CHN VQE STATUS0---------------------------------------------------------
AoDev AoChn State bVqe workmod RATE PoiNum bAnr bAgc bEq bHpf WrFile
0 0 enable N comm (null) 0 N N N N N[/code]
我现在输入采样率和输出采样率不一样,已经开启了语言降噪功能,但是还有噪音和回音,有什么处理思路那?、
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