On Sat, Mar 27, 2021 at 02:50:28AM +0100, LuKaRo wrote: > my grandmother needs headphones to watch TV, but wearing them causes > her to miss all the conversation around her. Hearing aids that allow > both TV and microphone input are around 2.5k€. As I'm quite firm with > Linux, and have conducted several Raspberry Pi projects, I wondered if > it was possible to find a DIY solution for this.
If there is some budget available, then alternative, low- or no-latency approaches (albeit non-DIY) would be: 1. Old-school analogue approach (<€100 total). Plug TV into stereo input of mixer. Plug mic into mic input of mixer. Plug headphones (or Bluetooth transmitter, or induction earrings) into mixer headphone jack. Adjust levels to taste. - Small mixer e.g. https://www.thomann.de/gb/the_t_mix_mix_502.htm or similar (Behringer Xenyx 1002B is an alternative if you want a post-preamp insert point for a noise gate and/or compressor) - Gooseneck or measurement microphone e.g. https://www.thomann.de/gb/the_tbone_tb312s_schwanenhalsmikro.htm or https://www.thomann.de/gb/the_tbone_gm_5212.htm or https://www.thomann.de/gb/the_tbone_mm1.htm etc depending on desired polar pattern (i.e. depending on where you will put the mic and mixer, relative to the ambient sounds your grandma needs to hear) - Optional noise gate if your mixer has an insert jack, e.g. https://www.thomann.de/gb/behringer_nr300_noise_reducer.htm - Optional Bluetooth transmitter if she already has Bluetooth headphones, e.g. https://www.amazon.de/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=bluetooth+transmitter - Optional induction earrings or loop, if she wants to use her existing hearing aids instead of headphones, e.g. https://www.amazon.de/-/en/Monacor-3-5mm-Jack-Induction-Loop/dp/B003DPH854/ or https://www.amazon.de/-/en/Geemarc-Iloop-Induction-Sling-Neckloop-black/dp/B06VWJV2ZH or https://www.amazon.de/-/en/Geemarc-CLHOOK3-Induction-Earrings-3-5/dp/B00400OD90 2. Buy her a pair of headphones or earphones that have ambient sound mixing functionality built in (<€250). E.g. Sony WH-1000XM3. Good luck! -- A: When it messes up the order in which people normally read text. Q: When is top-posting a bad thing? () ASCII ribbon campaign. Please avoid HTML emails & proprietary /\ file formats. (Why? See e.g. https://v.gd/jrmGbS ). Thank you. _______________________________________________ Linux-audio-dev mailing list [email protected] https://lists.linuxaudio.org/listinfo/linux-audio-dev
