I can generate a chirp using the software, and it gives it to me in 32-bit float format. However, my DUT expects either 16- or 32-bit signed little endian samples. As such, I loaded the software-generated chirp in Audacity and re-exported it in my desired format. All looks good when I examine the wav file in Audacity, but I wonder if there is a way to skip the step of manually re-exporting it? Alternatively, can use Audacity to create my own chirps in the first place? (Is there a specific duration for the trigger sound/a specific delay between the trigger sound and the start of the sweep?)
Maybe unrelated to my format tweaking, but for some reason when I analyse the triggered sweep results in the software, I’m seeing the higher frequencies attenuated - why would that be?
You might want to check the (recent) thread “Using Expochirp to measure a DAC’s frequency Response”. I am surprised your DUT does not like the 32bit float version- all of my DAPS read it. @restorer-john mentioned using Audacity to convert his signal as well, but am not sure if it was for the same reason…
