From 610dee161b34a686a5f772d338839b4b029e40dc Mon Sep 17 00:00:00 2001 From: Brumi-2021 <86470699+Brumi-2021@users.noreply.github.com> Date: Tue, 12 Apr 2022 13:55:37 +0200 Subject: [PATCH] Updated Capture (markdown) --- Capture.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Capture.md b/Capture.md index 1d93666..990ea1c 100644 --- a/Capture.md +++ b/Capture.md @@ -12,7 +12,7 @@ The Key Items on the App that can be selected with the cursor and changed with t Note (*) : Currently , **for correct Replay application ,you should ONLY use Capture App selecting any Bandwith capture <= 600 Khz. (500Khz recommended for majority micro SD cards compatibility)**. 600khz may need fast and good quality micro SD Card , and with not so high random latency . (In the GUI , those correct bandwidth capture options appear with the Normal usual "REC" icon Background colour, as user recomended BW capture options) -Above 600Khz bandwith options (with YELLOW REC button background Icon), in current fw version , the recorded files are “decimated” , and it has not recorded all full original samples content and therefore it is NOT useful for the Replay App , just useful to check the spectrum image, example using the tool "inspectrum" ). Anyway when replaying those captured files , the replay time will be shorter than real . but normally you should still get a correct modulation, but in case of voice contents, it would sound , unnatural , "like with accelerated playing speed" , because in fact,due to Hackrf One System (HW+SW) limitations, those recorded files (under those high speed BW with YELLOW icon) have decimated its content - when recorded there were skipped some real time samples. +Above 600Khz bandwith options (with YELLOW REC button background Icon), in current fw version , the recorded files are “decimated” , and it has not recorded all full original samples content and therefore it is NOT useful for the Replay App , just useful to check the spectrum image, example using the linux tool "inspectrum" or "Audacity") . Anyway when replaying those captured files , the replay time will be shorter than real . but normally you should still get a correct modulation, but in case of voice contents, it would sound , unnatural , "like with accelerated playing speed" , because in fact,due to Hackrf One System (HW+SW) limitations, those recorded files (under those high speed BW with YELLOW icon) have decimated its content - when recorded there were skipped some real time samples. In future versions, it is pending to investigate and try to apply a correct .C16 recording files (without any decimated samples ) till a capture of 1Mhz. (We will keep updated that manual , when we achieve it) ![image](https://user-images.githubusercontent.com/86470699/162581344-446a1a0b-325e-4bb6-a451-f47ecc91d8e3.png)