SPL measurement

[buscon]

I would like to check the SPL level of my hearing situation, meaning my speakers and my headphones.
I have a measurement microphone I can use for such purpose.

Which software can I use to do an SPL measurement on Linux?
I tried to use open sound meter but it seems to use only pulseaudio, I would rather use jack so that I can use my USB soundcard.

[lilith]

You need a calibrated mic for this. Better use a C weighted SPL meter

[buscon]

You need a calibrated mic for this. Better use a C weighted SPL meter

would a measurement mic work for this? like the measurement mic of sonarworks?

and what is a C weighted SPL meter on linux I could use?

[lilith]

You need such a SPL meter: https://www.thomann.de/de/digital_sound_8928.htm

With this you then can calibrate your mic. See also e.g. here: https://forums.cockos.com/showthread.php?t=32865

If you have an Iphone + App these are also accurate.

[buscon]

thanks for your answer!

I do not have an iphone, are android phones not accurate?

[lilith]

The Androids have different mics which is problematic when doing Apps. Íf you don't care about +-5dB or so you can also use an Android phone of course.

[buscon]

The Androids have different mics which is problematic when doing Apps. Íf you don't care about +-5dB or so you can also use an Android phone of course.

ok, that's also good to know.
I do not need a very precise measurement right now, I just wanted to have a rough reference, so Android is enough.

Thanks!

[sunrat]

The Androids have different mics which is problematic when doing Apps. Íf you don't care about +-5dB or so you can also use an Android phone of course.

ok, that's also good to know.
I do not need a very precise measurement right now, I just wanted to have a rough reference, so Android is enough.

Thanks!

The Android SPL meter apps I've used generally have a calibration function which requires matching readings with a proper hardware SPL meter. You might get within a few dB without calibrating but they are much better with.
Well, except for my current phone, a Realme 7 Pro which is a midrange device which works really well apart from not being able to display over 90dB! My old Pixel had no such problem. I haven't done much about finding any workarounds though as I have a real SPL meter.