I have used this example as a problem to my students to work on decimation
The source file was an interpolated version of a song at 400K saved with a file sink, and I have tell them that the source was sampled at 400K, the audio card should work at 16K..... so the obvious thing yo do was downsample x25 ..... but as I did not say this last part and the obvious was not obvious for some of them they did something like this
Apart from the unnecessary throttle, I don't think the audio card of the PC can work at 400Ksps so I haven't tried it, but when they did it the music sounded well in the computer, the question is why?
Read the mailing list of the GNU project right here! The information here is regarding the GNU radio project for USRP radios.
Thursday, December 16, 2021
Re: audio sink "working" at 400Khz
The system's audio library (e.g., ALSA) is being smart and doing the resampling for you.
On Thu, Dec 16, 2021 at 2:07 PM Fernando Peral <fernando@samara.com.es> wrote:
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