fftfilterbank ..The plugin that tried to do this is misbehaving and should be fixed.

[dpoznan]

I am trying to create a config that can be modified while system is running.

I have a statement with "algos slots" that I attempt to define after starting.


mha_Device.set_val('mha.transducers.mhachain.ola.addchain.algos',
'[mhachain:add1 mhachain:add2 '+
' mhachain:add3 mhachain:add4 '+
' mhachain:add5 acmon]')

The system runs ok with the empty adds..

Then after the cmd=start, I attempt to do

addname='add1'
mha_Device.set_val('mha.transducers.mhachain.ola.addchain.'+addname+'.algos ','[ fftfilterbank dc_simple combinechannels acmon ]')

Which gives me the following error.

ValueError: Error sending message b'mha.transducers.mhachain.ola.addchain.add1.algos=[ fftfilterbank dc_simple combinechannels acmon ]\n' with error code 1:
Response: b'\n(mha_parser) Parser error in mhachain:\n(mha_parser) Parser error in transducers:\n(mha_parser) Parser error in mhachain:\n(mha_parser) Parser error in overlapadd:\n(mha_parser) Parser error in mhachain:\n(mha_parser) Parser error in mhachain:\n(mhapluginloader) Error in module "fftfilterbank:fftfilterbank":\n(mha_algo_comm) Attempt to create AC variable "fftfilterbank_nchannels" during live signal processing. The plugin that tried to do this is misbehaving and should be fixed.\n(MHA:failure)'


I have tried doing a cmd=stop prior to setting the add1, but it makes no difference.
Is it the case that there cannot be dynamic restructuring, only parameter changes...

[tobiasherzke]

Thanks for reporting this behavior! Altering the structure with the mhachain "algos" setting should be possible after cmd=release, then alter the structure, then restart with cmd=start.

I will see how we can modify mhachain in order to improve the error message.