91–100 of 104 posts
Summer Night • As a change from loud white noise, try the sound of insects, singing at night. You're welcome!
Interestingly, as someone with tinnitus, I found the sounds of cicadas to be very painful on my trail runs. I guess I am not alone:
https://medicalxpress.com/news/2021-05-experts-cicada-proble...
Hopefully they are not in the sound clip :P
There you can find several noises, ocean, rain and river.
Thanks for the kind mention! I am Stephane, the person behind that website/project. I see a lot of people having concerns about the title - Background Sound Canceller - and they are right. That title is not mine, but poster's own. I describe my project as "Background Noise Generators", or sometimes as as "Non-Distracting Noises and Music". They are not sound cancellers but sound maskers . The idea is to create a nois…
(Submitted title was "MyNoise – Background Sound Canceller".)
Earlier quoted context omitted.
How fast can it need to be? The output frequency would be below 20kHz so latency of 50us or so, probably too fast for a userland app but I'd expect it to be doable in a driver or in the OS?
I get a similar answer but through a wildly different path: I think you have to detect the sound with a microphone, then come up with the canceling waveform before the sound hits your headphone drivers (as they will be generating the canceling waveform). Given the typical size of headphones, it would be something like 2cm/(34300cm/s) ~ 60us Although, sound travels faster through solids, so might want to be a little q…
Earlier quoted context omitted.
wonder if there's some kind of "virtual microphone" like device that let's you hear sounds further away than a mic in the headset. Google fu showed some ultrasonic virtual microphone but idk if it is useful here..
Hmm, could be. I don't know much about this. I imagine you want a very good approximation of the soundwave that will hit the ear (so you can cancel it out very accurately). The farther that your 'virtual microphone' is from the ear, I guess the harder it will be to figure out exactly how the sounds it is picking up will combine to hit the ear. I mean, imagine the extreme case -- your 'virtual microphone' is (virtuall…
Is there any app that uses scripts to generate this sort of audio? I’d like to be able to download a script of a thunderstorm, that sounds different every play, or the script for a coffee shop complete with the lunch rush and afternoon lull.
What kind of interface would you like for such a system? I created a FOSS alternative (that's not nearly as feature complete as mynoise.net) [0] but it has the benefit of being CC0 licensed including all of the samples. If you have features that you think would enhance the experience, please feel free to open an issue [1] or DM me. [0] https://abetusk.github.io/noixer/ [1] https://github.com/abetusk/noixer/issues
The interface I'm imagining is something like a playlist interface but instead of just tracks it has composable "sound elements". A single track might be a basic sound element, a traditional one-after-another track list is another sound element, then we get the interesting ones like a random crossfade mix of elements, or a one-after-another with randomized loop times for each track.
Apart from speed of response that many comments mention, isn't there a more fundamental issue with active suppression using wave interference in a 3D space. There will be places where the superposition of the amplitudes of the original wave and the active/added wave will cancel each other out but there will be places where they will superpose additively. Hypothetically one could position the source of the active supp…
Even if you could track the head of listener and send a counter wave to the particular position it would be limited to a very low frequency sounds with wavelength larger than distance between your two ears. Also neighbors wouldn't be happy hearing two times louder noise as it would be without cancellation.
Thanks for the kind mention! I am Stephane, the person behind that website/project. I see a lot of people having concerns about the title - Background Sound Canceller - and they are right. That title is not mine, but poster's own. I describe my project as "Background Noise Generators", or sometimes as as "Non-Distracting Noises and Music". They are not sound cancellers but sound maskers . The idea is to create a nois…