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MPlayer
http://www.mplayerhq.hu/DOCS/man/en/mplayer.1.html
AUDIO OUTPUT OPTIONS (MPLAYER ONLY) -abs (-ao oss only) (OBSOLETE) Override audio driver/card buffer size detection.-format (also see the format audio filter) Select the sample format used for output from the audio filter layer to the sound card. The values that can adopt are listed below in the description of the format audio filter.-mixer
ffmpeg noise filter usage based on mplayer noise settings ...
https://forum.videohelp.com/threads/372482-ffmpeg-noise-filter-usage-based-on-mplayer-noise-settings
Available values for component flags are: ‘a’ averaged temporal noise (smoother) ‘p’ mix random noise with a (semi)regular pattern ‘t’ temporal noise (noise pattern changes between frames) ‘u’ uniform noise (gaussian otherwise) atm. I would guess that. - mplayer "noise=5t:5t", would map to ffmpeg "noise=alls=5:allf=t".
Bright Edges: Audio Boost using MPlayer
https://brightedges.blogspot.com/2008/09/audio-boost-using-mplayer.html
is almost always the case), the noise level can be minimized by adjusting the master level and the volume knob on the amplifier until the hissing noise in the background is gone. This filter has a second feature: It measures the overall maxi‐ mum sound level and prints out that level when MPlayer exits.
3.11. Software Volume adjustment - MPlayer
http://www.mplayerhq.hu/DOCS/HTML/en/advaudio-volume.html
The -softvol option works by controlling the volume audio filter. If you want to play a file at a certain volume from the beginning you can specify volume manually: mplayer quiet-file-af volume=10. This will play the file with a ten decibel gain. Be careful when using the volume filter - you could easily hurt your ears if you use too high a value. Start low and work your way up …
mplayer: Couldn't find matching filter/ao format!
https://www.linuxquestions.org/questions/linux-software-2/mplayer-couldn%27t-find-matching-filter-ao-format-342556/
mplayer: Couldn't find matching filter/ao format! [ Log in to get rid of this advertisement] Hello. I have installed Mplayer and the Programm works with avi files and with most of dvd's. But with some dvd's, I only hear a grating noise. He writes: Quote: Checking audio filter chain for 48000Hz/2ch/ac3 -> 48000Hz/2ch/ac3... AF_pre: 48000Hz/2ch/ac3.
[SOLVED] MPlayer/Pulseaudio, No audio output / Newbie ...
https://bbs.archlinux.org/viewtopic.php?id=161466
Opening video filter: [scale] SwScale params: -1 x -1 (-1=no scaling) Trying filter chain: scale vo The selected video_out device is incompatible with this codec. Try appending the scale filter to your filter list, e.g. -vf spp,scale instead of -vf spp. [VD_FFMPEG] Trying pixfmt=1. [ffmpeg] aspect_ratio: 0.000000 VDec: vo config request - 640 x ...
audio - MPlayer: change sound pitch and speed ...
https://stackoverflow.com/questions/14155501/mplayer-change-sound-pitch-and-speed-independently
The command line looks like this: mplayer -ao jack -af ladspa=/usr/lib/ladspa/tap_pitch.so:tap_pitch:0:40:-90:0 -speed 0.8 tune.mp3 - This raises the pitch 40%, while setting speed to 0.8. – andrei
Denoise Filter settings and a few minor bugs? - Avidemux
https://avidemux.org/smif/index.php?topic=17981.0
With the other version mplayer denoise 3D(much better denoiser!) there are 3 settings only for some strange reason, again set too high and at these settings will destroy fine detail of any source. Set these to: 1:2:3 for a very light denoise or …
About the recent audio filters removal · Issue #2286 · …
https://github.com/mpv-player/mpv/issues/2286
(The filter was inherited from MPlayer; but even in mpv times we had to apply fixes that fixed major issues with added noise.) There is a ladspa filter if you still want to use it. af_export: I'm not even sure what this is supposed to do. Possibly it was meant for GUIs rendering audio visualizations, but it couldn't really work well.
MPlayerTips - Community Help Wiki - Ubuntu
https://help.ubuntu.com/community/MPlayerTips
There are many options available for this audio filter, all carefully documented in the man pages, but I will admit that for my own purposes I have usually only used the syntax demonstrated above. Tip 2: Play from archives. MPlayer can play from stdin thus opening the way to using any program as input that can output media to stdout.
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