I'm trying to use this design http://www.xmos.com/products/reference- ... /usb-audio as the core of an application we are building. We got to the point where we have a system what will identify to windows, we are able to install the custom build driver and by end of installation we have a soundcard that windows is cooperating with. But the speficication suggest that we should be able to play in 192kHz but it seems that we can not go any higher that 96 kHz.
We are using "USB Audio 2.0 XS1-L1 Software Release" which i can see is no longer avaliable at Xmos site. but in this project i have modifed the PID so that it reports as the unit we need it to the rest is untouched. We are programming using the "app_usb_aud_l1" project.
For the windows driver we use the a project from Thesycon: TUSBAudio
Since this is not really workign out for me i was hoping for one of two things:
1. Some information as to what i need to change to enable the 192kHz audio that should be supported.
2. What software do you use today to support the hardware, since the project that i use, seems to be obsolete
Any help is appriciated.
Br Ole
I'm trying to use this design http://www.xmos.com/products/reference- ... /usb-audio as the core of an application we are building. We got to the point where we have a system what will identify to windows, we are able to install the custom build driver and by end of installation we have a soundcard that windows is cooperating with. But the speficication suggest that we should be able to play in 192kHz but it seems that we can not go any higher that 96 kHz.
We are using "USB Audio 2.0 XS1-L1 Software Release" which i can see is no longer avaliable at Xmos site. but in this project i have modifed the PID so that it reports as the unit we need it to the rest is untouched. We are programming using the "app_usb_aud_l1" project.
For the windows driver we use the a project from Thesycon: TUSBAudio
Since this is not really workign out for me i was hoping for one of two things:
1. Some information as to what i need to change to enable the 192kHz audio that should be supported.
2. What software do you use today to support the hardware, since the project that i use, seems to be obsolete
Any help is appriciated.
Br Ole
Is it possible to use XMOS USB audio reference design at 192 Topic is solved
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Ole
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infiniteimprobability
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But the speficication suggest that we should be able to play in 192kHz but it seems that we can not go any higher that 96 kHz.
This would be due to either the ref design being configured to only 96KHz max, or possibly it running in USB Audio class 1 / Full speed. This would be limit it to 96/24 due to full speed throughput and UAC1 class capabilities. You could be seeing this either because you are running the 1ioxs image (it should be 2io... for UAC2) or it is plugged into a full speed port, such as on a keyboard.
To ensure the design is configured to support 192KHz, make sure this is in your customdefines.h file:
#define MAX_FREQ (192000)
What software do you use today to support the hardware, since the project that i use, seems to be obsolete?
Yes the board is obsolete, and not officially tested, but unofficially it does undergo basic testing and so should work. They are nice little boards and I find them handy for doing audio bench testing all the time.. The USB audio reference design contains all targets, so just download the latest one from the website and use the app app_usb_aud_l1 and it should be fine..
This would be due to either the ref design being configured to only 96KHz max, or possibly it running in USB Audio class 1 / Full speed. This would be limit it to 96/24 due to full speed throughput and UAC1 class capabilities. You could be seeing this either because you are running the 1ioxs image (it should be 2io... for UAC2) or it is plugged into a full speed port, such as on a keyboard.
To ensure the design is configured to support 192KHz, make sure this is in your customdefines.h file:
#define MAX_FREQ (192000)
What software do you use today to support the hardware, since the project that i use, seems to be obsolete?
Yes the board is obsolete, and not officially tested, but unofficially it does undergo basic testing and so should work. They are nice little boards and I find them handy for doing audio bench testing all the time.. The USB audio reference design contains all targets, so just download the latest one from the website and use the app app_usb_aud_l1 and it should be fine..
Engineer at XMOS