[GreenKeys] ITTY/RTTY Sampling tests

Paul Heller phearvada at gmail.com
Thu Sep 23 20:52:10 EDT 2021


It was definitely sampled at 8K. As I said, sampling at 11K and 22K were fine. It only dropped when sampling at 8K. 

The streaming software does not know about sample rates - it just sends it out.

It’s a puzzle

Paul

> On Sep 23, 2021, at 6:04 PM, Harold Hallikainen <harold at w6iwi.org> wrote:
> 
> I don't know what the combination of hardware and software is, but is it
> possible that the audio was being sampled at a higher rate than 8k, then
> being streamed at 8k? This would explain the frequency drop and bit rate
> drop. But, it seems like the transmit buffer would eventually overflow.
> 
> Harold
> 
> 
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