How to implement a mono input on CY8CKIT-033A platform?

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shlu_1817156
Level 3
Level 3
10 replies posted 5 replies posted 5 questions asked

Hi,

   

All examples of CY8CKIT-033A platform are stereo input/output.

   

Now we are designing a product with mono input/output.

   

I modify all the bNrChannels setting of Audio Descriptor of the USBiAP component, from 2 to 1.

   

Then I rebuild the project and download to the product, it works as a mono audio device.But the sound it recorded is not right. I know that it is because the sound data is not right.

   

How to make it right?

   

Thanks.

   

sd.

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3 Replies
himam_31
Employee
Employee
50 likes received 25 likes received 10 likes received

Hello,

   

Can you attach the project. Have you also modified the ISOC endpoint packet length accordingly?

   

Thanks,

   

Hima

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shlu_1817156
Level 3
Level 3
10 replies posted 5 replies posted 5 questions asked

Hi,Hima!

   

Thanks for replying.

   

I attach my project now.It is a bootloadable project,it bases on CY8C3446LTI-073,and use TI's ADC3101 as ADC.

   

I have tried modifying the ISOC endpoint packet length form 288 to 144, the sound data is still not right.

   

My base project all base on CY8CKIT-033A platform. So,if you show me how to change the example project provide with the CY8CKIT-033A platform, form stereo to mono, I will know how to change my project.

   

Thanks.

   

sd.

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