Free and Open Source Software

17934 readers

74 users here now

If it's free and open source and it's also software, it can be discussed here. Subcommunity of Technology.

This community's icon was made by Aaron Schneider, under the CC-BY-NC-SA 4.0 license.

founded 2 years ago

MODERATORS

[email protected]

FLOSS sound level meter for Android? (feddit.de)

submitted 6 months ago by [email protected] to c/[email protected]

6 comments fedilink hide all child comments

Is there such a thing? I wasn't able to find anything in the F-Droid repository.

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 5 points 6 months ago (1 children)

Would just be good for relative measurements?

[–] [email protected] 4 points 6 months ago

I don't know, but I doubt that the frequency response of a mobile phone microphone is either linear or consistent across sound level.

I don't even think you could compare two sounds with different frequencies, but I don't know.

I suspect that calibration of any such thing would require a whole lot of infrastructure, consider for example the angle of the phone in relation to sound and the impact of holding the phone in how it affects vibration and noise damping.

You might be able to use a calibrated sound level meter and pair it via Bluetooth with your phone, but I think that's going to be as close as you might get.

In the past I've tried a wired USB microphone, but the OS isn't real-time, so the jitter was horrendous. A pi would give you a more consistent result.