Re: Graphic Equalizer for Sound
Richmond wrote: > Dan Ritter writes: > > > Richmond wrote: > > Let's put in a broad bell that will cover bass and low treble > > voices: tap the first gear icon on top of a slider. By default, > > all these bands are configurable and set to no change, so we're > > going to co-opt the first one. > > > > The controls you now see should be Type, Mode and Slope. Set > > Type to Bell, ignore Mode and Slope for now. > > > > Underneath are Frequency and Quality, with a display in between > > telling you the width of that combination. Let's select a center > > frequency of 200Hz, with a Q of 1.25. The width should say about > > 160Hz, which will affect 40 to 360Hz (200 +/- 160). Click the > > gear icon again, and then adjust the slider up about 6 dB. > > OK I did this. But over on the right there is still 194hz and 241hz > which cover the same range. That's a leftover thought from graphic equalizers, where each slider has a fixed center frequency, a fixed shape, and a fixed width. This is a parametric equalizer. It starts out displaying 20 or so sliders all of which are set to zero. Setting them to zero means they don't affect anything. We then changed the frequency center of the first slider, setting it to 200Hz. On a graphic EQ, that's like grabbing the nearest fixed slider and forcing it to adjust the frequency you actually want. > Also the user interface appears to get stuck so the dialog won't go > away. Try clicking outside it. > I can't hear lower voices still, maybe PC speakers won't play them anyway. The spectral display above will show you what frequencies are being produced -- that's post-effects, so any changes you introduce with the equalizer will be shown. Try plugging in headphones? -dsr-
Re: Graphic Equalizer for Sound
Dan Ritter writes: > Richmond wrote: >> Dan Ritter writes: >> >> > Parametric EQs are not the same as graphic EQs, but they are >> > reasonably easy to understand and offer much more control. >> > >> > Suppose you want to boost all the bass below 50Hz. The >> > parametric type you want is a "shelf", the frequency is 50Hz, >> > the Q doesn't matter (because it's a shelf) and the volume >> > change is whatever you want -- +3dB is a safe number to produce >> > an audible effect without being overwhelming. >> > >> >> What I want to do is make it easier to hear the lower voices in choral >> music, or even better, hear only the lower voices, i.e. eliminate the >> upper voices. Perhaps a 'shelf' would do that, but I cannot find >> anything called 'shelf' in the user interface. I am bewildered. > > Human voices tend to be 80-8000Hz > > On the left hand side top, there's a Presets drop-down. Create a > new Output preset by typing in a name and tapping the + button. > > At the bottom center, click on Effects. > > On the left, you will have a list of effects. Select Equalizer. OK I got the equalizer. Unfortunately installing the software again has broken bluetooth speakers again, but I can still hear through the PC speakers... > > Let's put in a broad bell that will cover bass and low treble > voices: tap the first gear icon on top of a slider. By default, > all these bands are configurable and set to no change, so we're > going to co-opt the first one. > > The controls you now see should be Type, Mode and Slope. Set > Type to Bell, ignore Mode and Slope for now. > > Underneath are Frequency and Quality, with a display in between > telling you the width of that combination. Let's select a center > frequency of 200Hz, with a Q of 1.25. The width should say about > 160Hz, which will affect 40 to 360Hz (200 +/- 160). Click the > gear icon again, and then adjust the slider up about 6 dB. OK I did this. But over on the right there is still 194hz and 241hz which cover the same range. Also the user interface appears to get stuck so the dialog won't go away. I can't hear lower voices still, maybe PC speakers won't play them anyway. > > Play some choral music. Better? Worse? Play with the settings > until you get what you want. Then go back to Presets and use + > to save the current settings under the name you chose. > > -dsr-
Re: Graphic Equalizer for Sound
On 01/05/24 at 18:21, Richmond wrote: I am using a web browser to play Youtube and Spotify. I got into a real mess with this, as my bluetooth speakers stopped working, "Bluetooth connect failed: br-connection-profile-unavailable" and then when I removed pipewire I lost all sound completely. I have it working again now by trial and error. I know nothing about bluetooth speakers but if pipewire is not a viable solution for you, you could try to install "libasound2-plugin-equal" and "alsamixergui" packages then makes changes to your ~/.asoundrc accordingly to what's explained in the README: ~$ less /usr/share/doc/libasound2-plugin-equal/README then you can run the ALSA equalizer with the following command: ~$ alsamixergui -D equal maybe other readers may have a better solution. Cheers, -- Franco Martelli
Re: Graphic Equalizer for Sound
Franco Martelli writes: > On 01/05/24 at 14:33, Richmond wrote: >> Is it possible to have a graphic equalizer for sound output? I am using >> the Mate desktop. I installed EasyEffects from a flatpak and it appears >> on the menu but does nothing. I don't know the command line. Probably >> there is an error. >> Debian 12. >> > > Usually graphical equalizer are built in into the audio player, which > audio player are you using? Clementine ¹ has a powerful equalizer > with sound effects but maybe you'll prefer Rhythmbox that has an > equalizer provided apart. ² > I am using a web browser to play Youtube and Spotify. I got into a real mess with this, as my bluetooth speakers stopped working, "Bluetooth connect failed: br-connection-profile-unavailable" and then when I removed pipewire I lost all sound completely. I have it working again now by trial and error.
Re: Graphic Equalizer for Sound
Richmond wrote: > Dan Ritter writes: > > > Parametric EQs are not the same as graphic EQs, but they are > > reasonably easy to understand and offer much more control. > > > > Suppose you want to boost all the bass below 50Hz. The > > parametric type you want is a "shelf", the frequency is 50Hz, > > the Q doesn't matter (because it's a shelf) and the volume > > change is whatever you want -- +3dB is a safe number to produce > > an audible effect without being overwhelming. > > > > What I want to do is make it easier to hear the lower voices in choral > music, or even better, hear only the lower voices, i.e. eliminate the > upper voices. Perhaps a 'shelf' would do that, but I cannot find > anything called 'shelf' in the user interface. I am bewildered. Human voices tend to be 80-8000Hz On the left hand side top, there's a Presets drop-down. Create a new Output preset by typing in a name and tapping the + button. At the bottom center, click on Effects. On the left, you will have a list of effects. Select Equalizer. Let's put in a broad bell that will cover bass and low treble voices: tap the first gear icon on top of a slider. By default, all these bands are configurable and set to no change, so we're going to co-opt the first one. The controls you now see should be Type, Mode and Slope. Set Type to Bell, ignore Mode and Slope for now. Underneath are Frequency and Quality, with a display in between telling you the width of that combination. Let's select a center frequency of 200Hz, with a Q of 1.25. The width should say about 160Hz, which will affect 40 to 360Hz (200 +/- 160). Click the gear icon again, and then adjust the slider up about 6 dB. Play some choral music. Better? Worse? Play with the settings until you get what you want. Then go back to Presets and use + to save the current settings under the name you chose. -dsr-
Re: Graphic Equalizer for Sound
On 01/05/24 at 14:33, Richmond wrote: Is it possible to have a graphic equalizer for sound output? I am using the Mate desktop. I installed EasyEffects from a flatpak and it appears on the menu but does nothing. I don't know the command line. Probably there is an error. Debian 12. Usually graphical equalizer are built in into the audio player, which audio player are you using? Clementine ¹ has a powerful equalizer with sound effects but maybe you'll prefer Rhythmbox that has an equalizer provided apart. ² Cheers, ¹ https://packages.debian.org/bookworm/clementine ² https://wiki.gnome.org/Apps/Rhythmbox/Plugins/ThirdParty -- Franco Martelli
Re: Graphic Equalizer for Sound
Curt writes: > Why install from flatpak when there is a native Debian package? > To cut a long story short: user error. :( So I have it working now...
Re: Graphic Equalizer for Sound
Dan Ritter writes: > Parametric EQs are not the same as graphic EQs, but they are > reasonably easy to understand and offer much more control. > > Suppose you want to boost all the bass below 50Hz. The > parametric type you want is a "shelf", the frequency is 50Hz, > the Q doesn't matter (because it's a shelf) and the volume > change is whatever you want -- +3dB is a safe number to produce > an audible effect without being overwhelming. > What I want to do is make it easier to hear the lower voices in choral music, or even better, hear only the lower voices, i.e. eliminate the upper voices. Perhaps a 'shelf' would do that, but I cannot find anything called 'shelf' in the user interface. I am bewildered.
Re: Graphic Equalizer for Sound
Richmond wrote: > Is it possible to have a graphic equalizer for sound output? I am using > the Mate desktop. I installed EasyEffects from a flatpak and it appears > on the menu but does nothing. I don't know the command line. Probably > there is an error. I don't know anything about why a flatpak would work or not. You can apt install easyeffects ; it requires PipeWire. Running it should produce a window full of available effects for both input and output including a parametric equalizer. Parametric EQs are not the same as graphic EQs, but they are reasonably easy to understand and offer much more control. Suppose you want to boost all the bass below 50Hz. The parametric type you want is a "shelf", the frequency is 50Hz, the Q doesn't matter (because it's a shelf) and the volume change is whatever you want -- +3dB is a safe number to produce an audible effect without being overwhelming. If you have a room with one length being 4m, it might have a resonance at 86Hz. To dial that down, you would select a bell shaped parameter, centered at 86Hz, and play with the Q until the range is 83-89Hz. Then reduce it by 3 or 6 dB and listen. Does that help? -dsr-
Re: Graphic Equalizer for Sound
On 2024-05-01, Richmond wrote: > Is it possible to have a graphic equalizer for sound output? I am using > the Mate desktop. I installed EasyEffects from a flatpak and it appears > on the menu but does nothing. I don't know the command line. Probably > there is an error. Why install from flatpak when there is a native Debian package? At any rate, the wiki informs me that you need to install pipewire to get the easyeffects app to work. You don't mention pipewire, so maybe your problem lies in not having this essential dependency installed. I'm unfamiliar with flatplak, so I don't whether it would've installed this dependency, as would've occurred had you simply relied on our venerable deb system, which generally works like the proverbial charm. https://packages.debian.org/bookworm/pipewire (an audio and video processing engine multimedia server). > Debian 12. > > --
Graphic Equalizer for Sound
Is it possible to have a graphic equalizer for sound output? I am using the Mate desktop. I installed EasyEffects from a flatpak and it appears on the menu but does nothing. I don't know the command line. Probably there is an error. Debian 12.
