Control dynamic compression
Posted: Fri Jan 03, 2020 10:52 am
I am currently working with openMHA to adapt normal speech stimuli to patients with hearing loss. So far, this is working quite well.
I use the cfg-file from the example of the starting guide and mhacontrol for reading the audiogram. There I also select the hearing aid algorithm (e.g. NALRP). Then I load my stimulus, apply mha and save the output stimulus. So far so good. However, when I listen to the stimulus through my headphones, the frequency-specific amplification of the stimulus seems too low. I suspect that openMHA wants to know the presentation level of the stimulus in order to be able to choose the correct weighting for the amplification. However, I am not sure at which points I need to change my cfg file. Is it enough to calibrate openMHA via "mha.calib_in.peaklevel" or do I have to do more?
Thanks in advance!
I use the cfg-file from the example of the starting guide and mhacontrol for reading the audiogram. There I also select the hearing aid algorithm (e.g. NALRP). Then I load my stimulus, apply mha and save the output stimulus. So far so good. However, when I listen to the stimulus through my headphones, the frequency-specific amplification of the stimulus seems too low. I suspect that openMHA wants to know the presentation level of the stimulus in order to be able to choose the correct weighting for the amplification. However, I am not sure at which points I need to change my cfg file. Is it enough to calibrate openMHA via "mha.calib_in.peaklevel" or do I have to do more?
Thanks in advance!