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rv11126中的音频测试
SDK版本:RV1126_RV1109_LINUX_SDK_V2.2.6_20231228 使用的是A191型rv1126核心板上的音频接口
接入麦克风的正极和负极,查看录制设备 arecord -l,如下:
[root@RV1126_RV1109:/mycode]# arecord -l
List of CAPTURE Hardware Devices
card 7: Loopback [Loopback], device 0: Loopback PCM [Loopback PCM]
Subdevices: 8/8
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
Subdevice #7: subdevice #7
card 7: Loopback [Loopback], device 1: Loopback PCM [Loopback PCM]
Subdevices: 8/8
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
Subdevice #7: subdevice #7
运行官方的音频./rkmedia_ai_test 报错如下
Device: default
SampleRate: 16000
Channel Count: 2
Frame Count: 1024
Volume: 50
Output Path: /tmp/ai.pcm
SampleFmt: 1
RKMEDIA Log level: 2
[RKMEDIA][SYS][Info]:text is all=2
[RKMEDIA][SYS][Info]:module is all, log_level is 2
[RKMEDIA][SYS][Info]:RK_MPI_AI_EnableChn: Enable AI[0] Start…
[RKMEDIA][SYS][Info]:AlsaCaptureStream: Layout 0, output chan 2, alsa chan 2
ALSA lib confmisc.c:767:(parse_card) cannot find card ‘0’
ALSA lib conf.c:4554:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4554:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4554:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5033:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2685:(snd_pcm_open_noupdate) Unknown PCM default
[RKMEDIA][SYS][Info]:audio open error: No such file or directory
[RKMEDIA][SYS][Info]:AlsaCaptureStream::Open() failed
[RKMEDIA][VI][Info]:Create stream alsa_capture_stream failed
[RKMEDIA][VI][Info]:#SourceStreamFlow[]: stream off….
[RKMEDIA][VI][Info]:#SourceStreamFlow[]: read thread exit sucessfully!
[RKMEDIA][VI][Info]:#SourceStreamFlow[]: stream reset sucessfully!
[RKMEDIA][SYS][Error]:Create flow source_stream failed
Enable AI[0] failed! ret=-41
有没有哪位调试过核心板上的音频接口?是需要修改哪些东西吗
最终实现音频的采集以及播放
求助各位!!!!
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