The sound(AAC format) captured by encode demo in dvsdk-4.03 can just be heared in one heatset

QingboGuo

Other Parts Discussed in Thread: DM3730

Hello everyone,my board is DM3730 and I use dvsdk4.03. The decode demo can work normally.But the sound(AAC format) captured by encode demo in dvsdk-4.03 can just be heared by one heatset, the other is noise! Additionally,the sound can be heared in both headsets if the format is speech file(G711).

Who can give me some advices?

Thanks!

over 12 years ago

0 Cvetolin Shulev-XID over 12 years ago

TI__Guru 65405 points

Hi,

The G711 codec is mono bu default and the alsa double the audio stream on both channels but the AAC is stereo and if it is encoded with one channel the sound will be heard only by one headset. Could you give description of hoe the aac audio is encoded and how you are playing it. Give full sequence and parameters please.

Tsvetolin Shulev

0 QingboGuo over 12 years ago in reply to Cvetolin Shulev-XID

Intellectual 425 points

Hi,

I encoded the aac audio by ./encode -t 10 -a hello.aac

and played it by ./decode -a hello.aac

Additonally ,it works normally in dvsdk-4.02!

Thank you!

0 Cvetolin Shulev-XID over 12 years ago in reply to QingboGuo

TI__Guru 65405 points

Additonally ,it worked normally in dvsdk-4.02!

_____________________________________

Seems that there is some bug in dvsdk-4.03 but it should be tested more exhaustive.

Tsvetolin Shulev

0 QingboGuo over 12 years ago in reply to Cvetolin Shulev-XID

Intellectual 425 points

Hi,

And I have to notice that the official DM3730 demo board from IT supports only linein but no MIC, and I used MIC.So I don't know whether it has been tested more exhaustive using MIC or not!

Thank you!

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The sound(AAC format) captured by encode demo in dvsdk-4.03 can just be heared in one heatset