Different Channel Count with different sampling frequency
Posted: Fri May 12, 2017 9:52 am
Hi ,
As I know in a bigger Audio Interface product, it is possible to change the channel count on the fly when we select different sampling frequency from PC ( Host)
For example :
At the sampling frequency 48KHz , the system can support 18 USB In and 18 USB Out . When we select higher sampling frequency .
e.g. At the sampling frequency 192KHz , the system will be changed to support 8 USB In and 8 USB Out only dynamically.
I guess that it is possible to use different alternatives settings in USB descriptor to inform HOST. Is my understanding correct ?
Could someone those who have experience to implement such feature to share more information with me ?
Many thinks
As I know in a bigger Audio Interface product, it is possible to change the channel count on the fly when we select different sampling frequency from PC ( Host)
For example :
At the sampling frequency 48KHz , the system can support 18 USB In and 18 USB Out . When we select higher sampling frequency .
e.g. At the sampling frequency 192KHz , the system will be changed to support 8 USB In and 8 USB Out only dynamically.
I guess that it is possible to use different alternatives settings in USB descriptor to inform HOST. Is my understanding correct ?
Could someone those who have experience to implement such feature to share more information with me ?
Many thinks