Hi Christophe, No errors on the console. There seems to be nothing coming out of the last selector block.
I have tested it with 3.7 (Windows and Ubuntu) and with 3.8 (Windows). I will test it with 3.9 (beta Windows version) and let you know. best Achilleas On Wed, Apr 14, 2021 at 12:16 PM Christophe Seguinot < christophe.segui...@orange.fr> wrote: > Yes it worked at least under GR 3.9 > > Did you get any error message? > On 14/04/2021 18:06, Achilleas Anastasopoulos wrote: > > Christophe, > > thank you for the two suggestions. The second one (using selectors) is > preferable for me. > Unfortunately the grc flowgraph you provided does not work for me at all: > it does not produce any samples at the output. > I had to remove the first selector for it to work (see attached). > > I don't know if this is another bug, but can you confirm that the grc > flowgraph you sent me (with two selectors) worked for you? > > best > Achilleas > > On Mon, Apr 12, 2021 at 4:41 PM Christophe Seguinot < > christophe.segui...@orange.fr> wrote: > >> I would have implement this differently: >> >> - First solution combine To filters taps in one filter such as >> - final_taps=rrc_taps*(pulse-1)+rect*pulse >> - with pulse =0 or 1 (obtainde with a QT GUI Chooser) >> - BUT filters must have the same number of coefficients >> - 2nd: use QT Gui selector as in this flowgraph. (it can be extended >> to multiple filters easily) >> >> Regards, Christophe >> >> P.S. my flowgraph is for GR 3.8 /3.9 >> On 12/04/2021 19:10, Achilleas Anastasopoulos wrote: >> >> Hi all, >> >> I have a flowgraph with QT chooser choosing between rect pulse and rrc >> pulse. >> I also have a QT range where I want to control the rolloff factor of the >> rrc pulse when chosen. >> However, in the flowgrpah it seems that once the rrc is chosen I cannot >> change its roloff factor dynamically from the QT range. >> >> I have tried it in both 3.7 and 3.8 and I get the same result. >> Is this a bug? >> Is there a more appropriate way of achieving this result? >> >> thanks >> Achilleas >> >>