[AudioI] Toslink input

[Matt]

Perhaps we should do a digital input + analogue output board.

To do digital input properly it needs a software interface. The board is 
meant to tell the software what the incoming sample rate is.

Do you have any ideas around that ?

Matt

On 24/7/20 9:20 am, Peter Heydenrych via People wrote:
> I'd love to use the 8 balanced outputs of the Ultra 2 - just need an 
> optical input instead of the analogs...
>
> Peter
>
> On Fri, 24 Jul 2020, at 07:18, Matt via People wrote:
>>
>> To add a toslink input, it would need to operate the I2S clocks - 
>> that would require a different hardware topology to the current devices.
>>
>> I think we should do a new product based on this concept. Would you 
>> be using outputs ? If so what type of output would you want ?
>>
>> Matt
>>
>> On 24/7/20 8:40 am, Peter Heydenrych via People wrote:
>>> Thanks for the quick reply, Matt. Would it be possible to add 
>>> another device to bring in a Toslink signal? Do you know of anything 
>>> that would be compatible?
>>>
>>> Peter
>>>
>>>
>>> On Fri, 24 Jul 2020, at 06:37, Matt via People wrote:
>>>>
>>>> Hey Peter,
>>>>
>>>> I would love to be able to do this, however that tollink connector 
>>>> is driven by the codec. They do the I2S to S/PDIF conversion on 
>>>> chip. S/PDIF receiving is more complex then sending because we also 
>>>> need to interrupt the operating system to notify it of a sample 
>>>> rate change.
>>>>
>>>> Perhaps it is a good idea to do a future project with the S/PDIF 
>>>> injection capability.
>>>>
>>>> Matt
>>>>
>>>> On 24/7/20 8:27 am, Peter Heydenrych via People wrote:
>>>>> Hi all,
>>>>>
>>>>> I have just ordered an Ultra 2 but now see the Toslink option is 
>>>>> an output.
>>>>> Is there any possible way to add a Toslink input to a Pi + Ultra 2 
>>>>> system?
>>>>> I'd prefer it if the Toslink output could be converted to an 
>>>>> input, but adding another module to the system would be acceptable.
>>>>>
>>>>> Thanks,
>>>>>
>>>>> Peter
>>>>>
>>>>>
>>>>>
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>>>
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