The open Master Hearing Aid Forum

Hi Jva, please share with us what exact steps you have executed, what sound files you have used, and what audiogram(s) you and Neo have used. E.g. if I apply Linear40 rule then I should get output wav file according to that gain rule (40dB gain should get applied) No, this is not the case. Please se...

Thanks for providing more information. Could you please add which audiogram you chose. And then it would be good to concentrate on just one prescription rule, let's say CRvar_NALRP with compression ratio 3, which compresses the dynamic range by the given ratio while it IIRC applies NAL-RP gains at 6...

Hi Neo, if you need more help, then please post more details: What exact steps have you performed What was the expected result What was the actual result What analysis methods did you employ Please make any wav files and audiograms that you have used accessible to forum participants, or use wav file...

What is the exact role of the acoustic input level in dB SPL that I have to enter? peaklevel_in.PNG In this dialog you're giving the physical sound level that shall correspond to 0 dB re full scale in your sound files. E.g. if you enter value 90 here and one of your sound files has an RMS level of ...

One addition because common instructions for reading openMHA configuration files may seem contradictory to what I just wrote (but aren't): Our documentation like the getting-started guide contain configuration language commands like this to have the mha read a configuration file: ?read:gain_live_get...

MHA configuration language expects commands in the following order: <path> <operator> <argument> In your case, <path> is mha.sort_output.mhaconfig_out.srate, <operator> is the question mark, and <argument> is the query command "val". Change your command to mha.sort_output.mhaconfig_out.sra...

Thanks for reporting this problem. However, I cannot reproduce it. I'm seeing a text entry box "Search..." in the upper right of the forum's web pages. To make sure that this is not some effect of my login, I have also looked at the forum with a Firefox browser "private window" a...

The equalize documentation looks like this: The MHA plugin equalize supports these signal domains: • spectrum to spectrum The equalize plugin needs to be placed in a location where spectral processing happens (inputs are spectra, outputs are spectra). The equalize plugin's variable documentation loo...

http://www.openmha.org/documentation/ includes a calibration manual.

This may be the case, but a more likely explanation is that openMHA terminates while reading the config file because of some error. Two suggestions: 1) Verify that you can talk twice from Matlab to the openMHA instance before reading the configuration file, e.g. mha = mha_start mha_get(mha,'state') ...