On Lu, 19 apr 21, 03:01:37, Long Wind wrote: > i've run alsamixer, it's not what i want > i want it to show loudness of sound in real time by changing or flashing colorful bar Then you are looking for a VU meter. https://en.wikipedia.org/wiki/VU_meter For pure ALSA you might be able to (ab)use aplay and / or arecord depending on what are you trying to accomplish (more details would help). Kind regards, Andrei -- http://wiki.debian.org/FAQsFromDebianUser
Attachment:
signature.asc
Description: PGP signature