i.MX ProcessorsのトピックRe: Cannot find aplay for audio test

Cannot find aplay for audio test

jacklu — Tue, 23 Jun 2015 00:21:53 GMT

Hi expert,

On our IMX6SL platform, I cannot do the aplay to test the audio.

when I do aplay test command(aplay -l), it shows that: cannot find aplay in system/bin.

Could you help me?

Is it based on imx6jb2\hardware\qcom\audio\libalsa-intf source code?

Thank You!

BRs,

Jack

Re: Cannot find aplay for audio test

weidong_sun — Tue, 23 Jun 2015 03:57:16 GMT

Hi, Jack,

if you are using android BSP, ALSA tool shoudl be "tinyplay/tinymix/tinycap"， and they are at path system/bin/.

Regards,

Weidong

Re: Cannot find aplay for audio test

jacklu — Tue, 23 Jun 2015 06:08:14 GMT

On my another question, they said that it can use aplay...(How to send the stereo audio sound to mono SPKOUTL? )

Anyway, tinyplay can be found in system/bin.

But, it is still error:

tinyplay /data/out.wav -D 0 -d 0

Unable to open PCM device 0 (cannot set hw params: Invalid argument)

It seems that SNDRV_PCM_IOCTL_HW_PARAMS can not pass.

Would you like to help check it?

Thank you!

BRs,

Jack

Re: Cannot find aplay for audio test

jacklu — Wed, 24 Jun 2015 02:07:56 GMT

Hi Weidong,

Please help to provide the tinymix & tonyplay command for test.

Thank You!

BTW: on Qualcomm platform:

speaker：

tinymix "SLIM RX1 MUX" AIF1_PB

tinymix "SLIM_0_RX Channels" One

tinymix "RX7 MIX1 INP1" RX1

tinymix "RX7 Digital Volume" 98

tinymix "COMP0 Switch" 1

tinyplay /data/test.wav

BRs,

Jack

Re: Cannot find aplay for audio test

weidong_sun — Thu, 25 Jun 2015 04:46:16 GMT

Hi Jack,

After you compile android source code , then burn them into SD card or Flash on board, when you boot the board, you can find these 3 commands at path "system/bin/",.or you can get them from NFS DEMO iMage released by freescale for EVK board.

Regards,

Weidong

Re: Cannot find aplay for audio test

jacklu — Thu, 02 Jul 2015 01:09:40 GMT

Hi Weidong,

Yes, I can find these ALSA tool in system/bin.

But they cannot work well:

tinyplay /data/out.wav -D 0 -d 0

Unable to open PCM device 0 (cannot set hw params: Invalid argument)

Could you help to check this error?

thanks!

BRs,

Jack

Re: Cannot find aplay for audio test

gusarambula — Thu, 27 Aug 2015 15:41:08 GMT

I would like to update this thread with an alternative proposed by the user.

am start -a

"android.intent.action.VIEW" -t

"audio/mp3" -d

"file:///data/test.mp3"

Re: Cannot find aplay for audio test

jacklu — Fri, 28 Aug 2015 01:07:31 GMT

Hi Gusarambula,

Yes, this command can work well.

But I think that there should be another method by tinyalsa.

such as:

tinymix SLIM RX1 MUX:AIF1_PB

tinymix SLIM_0_RX Channels:One

tinymix RX4 MIX1 INP1:RX1

tinymix RX4 Digital Volume:50

tinymix SPK DAC Switch:1

tinymix SLIMBUS_0_RX Audio Mixer MultiMedia1:1

tinyplay xxxx.wav -D 0 -d 0