Equalizer, Audio Analyzer and Fade effect in Amarok

Maybe the problem (with its solution) that I bring you below for some users was obvious, or they knew it, but I just found out and that is why I share it with you in case someone was in the same situation.

The problem is that since I use KDE always struck me that the equalizer of Amarok was disabled. As generally I have always used CWell, I hadn't paid attention to this matter until yesterday it started bothering me.

KDE uses a framework for Audio and Video devices called Phonon, and when we install ArchLinux with KDE, it always asks us which engine to use for said framework.

By default comes phonon-vlc and unfortunately, that engine does not allow Amarok use equalizer. The solution? Well, it is evident: Install phonon-gstreamer.

$ sudo pacman -S phonon-gstreamer

In the case of Debian must be:

$ sudo aptitude install phonon-backend-gstreamer

When installing this package in Debian with KDE 4.8, it automatically got GStreamer as Default Engine in System Preferences »Multimedia» Phonon »Engine.

But in the case of ArchLinux with KDE 4.11.2 I had to manually default it to System Preferences »Multimedia» Audio and Video Preferences »Engine, log out and log in again.

From that moment, Amarok I added a Audio Analyzer, effects of Fading and of course the option to use the Equalizer.

Amarok

I leave you a small video that I made with three reasons: First, to test the groups in Vimeo for the project @ 10inFromLinux. Second, to see how it works. Third, to see how the videos look on this platform, so any ideas, suggestions or criticisms will be welcome 😛


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  1.   staff said

    A pity that the phonon vlc still does not support options like the updater in Amarok, I say a pity because it offers a higher sound quality than gstreamer.

    1.    elav said

      Well, I couldn't compare the sound quality .. How do you know?

      1.    staff said

        Well, it is because the VLC phonon uses the filters and enhancements that are also in the VLC player, with which it can play higher quality audios such as bluray sources.

        Of course, to notice them, it is not always enough with the common speakers for PC or integrated into laptops playing mp3 at 96 kbps.

        Another story is when you have a high-mid-range sound card (Good DAC + amplifier) ​​and speakers or monitor headphones to play formats like FLAC or ALAC, or even CD.

        Here is a comparison table.

        http://community.kde.org/Phonon/FeatureMatrix

        1.    elav said

          Mmm interesting .. Thanks for the information, is that in this of the audio I am totally neophyte.

        2.    George said

          vlc-gstreamer is a topic several times discussed, like kde-gnome. Gstreamer does not include bluray (and others with patents) for legal reasons, so they sell fluendo. The Gstreamer community is much larger, they support various projects, and have some interaction with fluendo in the wine-crossover style. It's weird that the page you mentioned says it's only for linux, but wikipedia says “Designed to be cross-platform, it is known to work on Linux (x86, PowerPC and ARM), Solaris (Intel and SPARC)…. etc". How the audio is heard is also a subjective and self-referential issue, I would rather take other parameters.

          1.    staff said

            Well, I do not think I was subjective in my comment, explain that I am based on the ability of each one to reproduce higher quality files, using as a parameter the bitrate, the filters (to reduce noise, normalizations and other things), all that is it can reflect in numbers, so it's not subjective.
            We can see the same in any multimedia format that has different levels of compression according to its formats.

            A RAW file supports higher quality than a JPG, and although it may not always be noticeable, the important thing is that that extra capacity exists, so that when required, it can be used.

            The rest is a separate issue.

            And as you say, it is a question similar to KDE-Gnome.
            In which, if subjective issues are left aside, such as appearance or ease of use, KDE is on the top, being so modular and having extra things that Gnome does not have.

          2.    husband said

            I just read your comment, I did not know anything about gstreamer fluendo! the difference for mp3 is abysmal, it reaches the bass well, and its free part is in debian. I add pulseaudio to separate channels in the style of windows 7, although I have read that with kde you do not usually get along so well. Maybe that's why the trio KDE, vlc and alsa

    2.    husband said

      I would say that the other way around, gstreamer + pulseaudio, an invincible couple. But audio is such a subjective area so: S

      1.    eliotime3000 said

        If you start listening to music with the Beats Audio, you will quickly get used to excess treble and bass. On the other hand, if you use the BeyerDynamic, you will be able to enjoy in combination with a professional sound card, the fantastic audio quality it has.

        In any case, everyone gets used to each musical style and how they listen to it.

  2.   mario said

    Thanks Elav. You always researching and giving
    solutions. Excellent contribution.

    1.    elav said

      You're welcome, there will always be someone who has the same doubts as me 😉

  3.   Carper said

    Thanks for the data Elav, now I understand why in some KDE distributions the audio does not work well in certain applications.
    regards

  4.   eliotime3000 said

    Interesting. What's more, my sound card may sound "a little better" with Amarok. Let's see if I upload my video on Vimeo about a tutorial that I can do (as soon as I buy my webcam and its respective microphone, of course).

    1.    eliotime3000 said

      Oh, and by the way, I didn't know that that was your voice.

      1.    elav said

        It is not my voice, I put filters and effects on it so that it is not recognized and added to the NSA U_U database

        1.    eliotime3000 said

          LOL! For a moment, I thought your voice was very high. Anyway, as at least I know how to make my voice, I don't think they recognize it.

        2.    pandev92 said

          Yes…, the NSA is very interested in knowing what the terrorist elav does XD

          1.    eliotime3000 said

            Well, at least it is rumored that their servers that they were going to use were burned (although I don't think so).

  5.   alunado said

    ahh, elav; Are you running debian stable (for kde 4.8)? A gave me some really big problems on a netbook. Kwin crawls. The graphics is the classic intel on these netbooks. A shame because I wanted a stable system, now I'm going to testing to see what happens. Regards.

    1.    eliotime3000 said

      Maybe it's driver problems. In my case, that I have Debian Wheezy installed on my 5570 HP DC2006 computer, I have not had many problems with the graphics.

    2.    elav said

      Yes, I have Debian Stable on my work computer and KDE works perfect for me.

      1.    eliotime3000 said

        We're even. KDE 4.8.4 works great for me on Debian Wheezy.

  6.   kennatj said

    I have used KDE many times and never saw this, it is as my boss says things are easy for those who know them xD

  7.   nuanced said

    I have used Amarok at some point but have honestly never seen this functionality .__.