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GitHub - k3xx/vumeter: VU meter using PulseAudio and ...
https://github.com/k3xx/vumeter
This program reads peak audio samples from a PulseAudio sink and sends them to a digital-to-analog converter (which is intended to be connected to an analog VU meter). It runs on a Raspberry Pi but will probably work on other platforms by adjusting the DAC class.
Monitoring Audio Levels with PulseAudio - menno.io
https://menno.io/posts/pulseaudio_monitoring/
In fact, to help with volume meter style applications, PulseAudio even allows you to ask for peak level measurements, which means you can sample the monitor sink at a low frequency, with low CPU utilisation, but still produce a useful volume display. When this feature is used, each sample read indicates the peak level since the last sample.
GitHub - zezic/vu: Super-smooth VU meter for PulseAudio
https://github.com/zezic/vu
Super-smooth VU meter for PulseAudio. Contribute to zezic/vu development by creating an account on GitHub.
Cannot capture audio output (pavucontrol vu-meter stuck at ...
https://bbs.archlinux.org/viewtopic.php?id=264660
2) plugging in a USB audio interface (vu-meter still stays at 0 and cannot capture output) 3) using JACK (this works) 4) trying to capture from ALSA instead of pulseaudio (hw:1,0 device or resource busy) I'm not sure what to make of this.
Coding a pulseaudio vu meter in C, need some pointers ...
https://www.reddit.com/r/linuxaudio/comments/6hoptg/coding_a_pulseaudio_vu_meter_in_c_need_some/
The “volume value” is either something given by pulseaudio (in that case you need to read docs), or it is not and you need to calculate a bit. For the second option you may want to read about volume (https://en.wikipedia.org/wiki/Sound_intensity) and be familiar with digital audio (sampling frequency and quantization). 1 Share ReportSave level 2
LED VU meter tower using PulseAudio - YouTube
https://www.youtube.com/watch?v=Rul0JDoE6CE
Not a best vay for VU meter, but it works! Just for fun.
PulseAudio Volume Meter. Would like to add VU ticks. - …
https://www.eevblog.com/forum/programming/pulseaudio-volume-meter-would-like-to-add-vu-ticks/
PulseAudio volume controls are pretty darn simple things, so it's more like customizing your wheel than reinventing one. See here. The only tricky thing is to remember that the audio samples are linear and correspond to amplitude; so 3 dB corresponds to a ratio of sqrt (2) in amplitude.
PulseAudio Volume Meter. Would like to add VU ticks. - …
https://www.eevblog.com/forum/programming/pulseaudio-volume-meter-would-like-to-add-vu-ticks/25/
Author Topic: PulseAudio Volume Meter. Would like to add VU ticks. (Read 1888 times) BMK and 9 Guests are viewing this topic. Ed.Kloonk. Super Contributor; Posts: 2588; Country: Re: PulseAudio Volume Meter. Would like to add VU ticks. « Reply #25 on: Today at 09:41:39 am ...
Pulse Audio Meter - CNET Download
https://download.cnet.com/s/pulse-audio-meter/
Pulse is an audio enhancer with multi-functions like five band Equalizer, Bass Booster, Virtualizer, Loudness Enhancer, Reverberation. Android Pulse Audio Enhancer - Bass Booster & Equalizer...
c - Getting volume value from pulseaudio - Stack Overflow
https://stackoverflow.com/questions/44608514/getting-volume-value-from-pulseaudio
Looking at the original question from UNIX.StackExchange, it looks like you're trying to create a VU meter. It can be done using an envelope detector. You have to read the input values and then average their rectified value. A simple envelope detector can be done as an exponential moving average filter.
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