Search found 109 matches

by tobiasherzke
Mon Sep 04, 2023 6:19 pm
Forum: Software
Topic: fftfilterbank ..The plugin that tried to do this is misbehaving and should be fixed.
Replies: 1
Views: 3159

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

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.
by tobiasherzke
Thu Jul 20, 2023 7:25 am
Forum: The Portable Hearing Laboratory (PHL)
Topic: Feedback Suppression
Replies: 1
Views: 1086

Re: Feedback Suppression

I do not know the afc algorithm very well. There is a good chance that its implementation is still too CPU-hungry to run on the PHL. We usually use a combination of frequency shifting and coherence filtering to achieve feedback suppression in real-time openMHA setups. The afc algorithm stores the op...
by tobiasherzke
Wed Jun 07, 2023 11:26 am
Forum: User Applications
Topic: Feedback suppression configuration
Replies: 2
Views: 3626

Re: Feedback suppression configuration

Please see https://github.com/HoerTech-gGmbH/openM ... mha.m#L200 for how to feed a buffer of audio to MHAIOParser, and line 203 in this file for how to read the processed result.
by tobiasherzke
Fri Apr 07, 2023 5:00 pm
Forum: The Portable Hearing Laboratory (PHL)
Topic: Auto Start Node server on Boot
Replies: 2
Views: 1228

Re: Auto Start Node server on Boot

If I understand you correctly, then your log on the PHL shows (1) that your nodejs app has actually started, and (2) that your nodejs app reacts to your connection by logging "Cannot get /". If this is not the reaction that you want, then you need to fix this inside your custom nodejs app,...
by tobiasherzke
Wed Mar 15, 2023 9:43 pm
Forum: The Portable Hearing Laboratory (PHL)
Topic: Time and Calender Settings
Replies: 4
Views: 1852

Re: Time and Calender Settings

I am generating some files using the timestamp but it looks like PHL's calender is wrong. As nmichael says, the PHL does not have real-time-clock hardware, and therefore cannot keep track of time and date between reboots. Also, its operating system does not connect to the internet on each reboot to...
by tobiasherzke
Thu Feb 02, 2023 9:42 am
Forum: Software
Topic: Serving React App with node-red
Replies: 2
Views: 1654

Re: Serving React App with node-red

Searching for serve web pages with node-red finds a couple of hits that look relevant to your project.

That said, the PHL runs Linux on a 32 bit ARM processor, so any other common technology to serve web pages from Linux can be realized on the PHL, and may be cheaper, CPU-wise, than using node-red.
by tobiasherzke
Thu Feb 02, 2023 9:33 am
Forum: Software
Topic: openMHA used on FPGAs
Replies: 3
Views: 1818

Re: openMHA used on FPGAs

Searching the Montana State University web site for the names of the authors finds contact data and related work. It may have been a student project.
by tobiasherzke
Thu Feb 02, 2023 7:57 am
Forum: Software
Topic: Filtering and softclip in transducers plugin
Replies: 5
Views: 2399

Re: Filtering and softclip in transducers plugin

If you want to employ a softclipper before the output side FIR filter of the "transducers" plugin, then please use the separate plugin "softclip" as the last plugin in the chain that you load into plugin "transducers". The purpose of the softclipper which is integrated ...
by tobiasherzke
Fri Dec 02, 2022 11:43 am
Forum: Software
Topic: [Project] Improving speech audibility in movies/television. | Build a device to engage between line out and headphones.
Replies: 2
Views: 1492

Re: [Project] Improving speech audibility in movies/television. | Build a device to engage between line out and headphon

my hearing diasabled dad His main problem seams to be high volume differences That's a medical problem. Please be aware that openMHA is not medical device software, and therefore should not be used here. Instead, openMHA supports hearing researchers who have expert knowledge in the domain to study ...
by tobiasherzke
Thu Oct 06, 2022 11:08 am
Forum: Getting Started
Topic: GUI Problems using openMHA with Octave
Replies: 2
Views: 3564

Re: GUI Problems using openMHA with Octave

Thank you for the report.

Please provide the full list of steps that you have performed to evoke this error, and the full version information of the software that you have used, so that I can try to reproduce your error.