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
>>
>>

Reply via email to