Re: [Discuss-gnuradio] Clarification regarding Sample width in USRP.

[Marcus D. Leech]

On 03/01/2014 11:00 PM, Manu T S wrote:

Hello Everyone,

From little bit of googling I understood that there are different sample width possible in USRP. If my understanding is correct, we can use 16/8 bit sample width.

But my usrp block in GNU Radio lists complex float32 and complex int16, and VITA word 32 as the types.

How can we relate this with the 16/8 bit sample width?

From my understanding the complex data type in GNU Radio uses interleaved float32. So does the driver on the host machine convert the incoming data from its sample width to the one we want to the upstream blocks?

--
Manu T S

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You're looking for the "wire format" parameter in the UHD source/sink.

UHD converts the wire-format into the floating-point format used within Gnu Radio.