android和linux的关系,android linux 11

linux：

1.查看声卡：

root@sos-dom0 ~ # aplay -l

**** List of PLAYBACK Hardware Devices ****
card 0: broxtontdf8532 [broxton_tdf8532], device 0: Speaker (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: broxtontdf8532 [broxton_tdf8532], device 2: Dirana Pb (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: broxtontdf8532 [broxton_tdf8532], device 4: TestPin Pb (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: broxtontdf8532 [broxton_tdf8532], device 6: BtHfp Pb (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: broxtontdf8532 [broxton_tdf8532], device 8: Modem Pb (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Device 迷你的柠檬 PnP Audio Device], device 0: USB Audio 迷你的柠檬 Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
2. 播放音乐

root@sos-dom0 ~ # aplay -Dplughw:0,0 audio/48K_Let_It_Go.wav

3.相关配置命令

root@sos-dom0 ~ # amixer

4.查询配置所使用的接口

root@sos-dom0 ~ # amixer contents

例：

root@sos-dom0 ~ # amixer cset numid=19,iface=MIXER,name='codec0_out mo media_in mi Switch' on

注意: numid是个变值。根据name(codec0_out mo media_in mi Switch)寻找对应的ID.出现一下问题，就说明是开关没有开启需要开启

Playing WAVE './audio/48K_Let_It_Go.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo
aplay: set_params:1403: Unable to install hw params:
ACCESS: RW_INTERLEAVED
FORMAT: S16_LE
SUBFORMAT: STD
SAMPLE_BITS: 16
FRAME_BITS: 32
CHANNELS: 2
RATE: 48000
PERIOD_TIME: (21333 21334)
PERIOD_SIZE: 1024
PERIOD_BYTES: 4096
PERIODS: 4
BUFFER_TIME: (85333 85334)
BUFFER_SIZE: 4096
BUFFER_BYTES: 16384
TICK_TIME: 0

5. 录音（arecord)

查看录音声卡： arecord -l

root@sos-dom0 ~ # arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: broxtontdf8532 [broxton_tdf8532], device 2: Dirana Cp (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: broxtontdf8532 [broxton_tdf8532], device 4: TestPin Cp (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: broxtontdf8532 [broxton_tdf8532], device 6: BtHfp Cp (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: broxtontdf8532 [broxton_tdf8532], device 8: Modem Cp (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: broxtontdf8532 [broxton_tdf8532], device 10: HDMI Cp (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: broxtontdf8532 [broxton_tdf8532], device 11: Dirana Aux Cp (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: broxtontdf8532 [broxton_tdf8532], device 12: Dirana Tuner Cp (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0

录制固定长度的音频： arecord -Dhw:0,2 -d 5 -t wav -r 48000 -f S32_LE >/root/1.wav

5：代表录制时长为5秒钟的音频

S32_LE：格式

1. 查看声卡：

gordon_peak_acrn:/ # alsa_aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: sklvirtiocard [skl_virtio_card], device 0: Speaker (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: sklvirtiocard [skl_virtio_card], device 2: Dirana Pb (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: sklvirtiocard [skl_virtio_card], device 4: TestPin Pb (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
2.播放音乐

alsa_aplay -Dplughw:0,0 /data/audio/48K_Let_It_Go.wav

3. 录制音频

alsa_arecord -Dhw:0,1 -d 5 -t wav -r 48000 -f S32_LE >/data/1.wav

4. 配置文件

|gordon_peak_acrn:/ # tinymix
Mixer name: 'skl_virtio_card'
Number of controls: 35
ctl type num name value

0 ENUM 1 BtHfp_ssp0_in pcm cfg IN:f8000-c1-b32 OUT:f8000-c1-b32
1 ENUM 1 BtHfp_ssp0_out pcm cfg IN:f8000-c1-b32 OUT:f8000-c1-b32
2 BOOL 1 Speaker Switch On
3 INT 1 media_in gain 0 Ramp Duration 1200
4 INT 1 media_in gain 0 Ramp Type 0
5 INT 2 media_in gain 0 Volume 1440 1440
6 BYTE 12 Probe probe 0 Extractor0 params 00 00 00 00 00 00 00 00 00 00 00 00
7 BYTE 12 Probe probe 0 Extractor1 params 00 00 00 00 00 00 00 00 00 00 00 00
8 BYTE 12 Probe probe 0 Extractor2 params 00 00 00 00 00 00 00 00 00 00 00 00
9 BYTE 12 Probe probe 0 Extractor3 params 00 00 00 00 00 00 00 00 00 00 00 00
10 BYTE 12 Probe probe 0 Extractor4 params 00 00 00 00 00 00 00 00 00 00 00 00
11 BYTE 12 Probe probe 0 Extractor5 params 00 00 00 00 00 00 00 00 00 00 00 00
12 BYTE 12 Probe probe 0 Extractor6 params 00 00 00 00 00 00 00 00 00 00 00 00
13 BYTE 12 Probe probe 0 Extractor7 params 00 00 00 00 00 00 00 00 00 00 00 00
14 BYTE 12 Probe probe 0 Injector0 params 00 00 00 00 00 00 00 00 00 00 00 00
15 BYTE 12 Probe probe 0 Injector1 params 00 00 00 00 00 00 00 00 00 00 00 00
16 BOOL 1 codec0_out mo media_in mi Switch Off
17 INT 1 dirana_in gain 1 Ramp Duration 9000000