有人可以尝试帮助我安装上述内容吗？因为我已经尝试了大约一周但都没有成功。
我的操作系统是 Ubuntu 16.04 LTS。查阅了几个网站后，发现需要先添加 ppa 存储库 nilarimogard/webupd8。我在终端上使用命令 顺利完成了此操作$ sudo add-apt-repository ppa:nilarimogard/webupd8。
下一步是使用命令安装 Pulse Audio Equalizer $ sudo apt-get install pulseaudio-equalizer。不幸的是，我的问题就出在这里。以下是打印输出。
Reading package lists... Done
Building dependency tree
Reading state information... Done
W: Target Sources (partner/source/Sources) is configured multiple times in /etc/apt/sources.list:45 and /etc/apt/sources.list:88
W: Target Packages (partner/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:44 and /etc/apt/sources.list:87
W: Target Packages (partner/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:44 and /etc/apt/sources.list:87
W: Target Packages (partner/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:44 and /etc/apt/sources.list:87
W: Target Translations (partner/i18n/Translation-en_GB) is configured multiple times in /etc/apt/sources.list:44 and /etc/apt/sources.list:87
W: Target Translations (partner/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:44 and /etc/apt/sources.list:87
W: Target DEP-11 (partner/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:44 and /etc/apt/sources.list:87
W: Target DEP-11-icons (partner/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:44 and /etc/apt/sources.list:87
E: Unable to locate package pulseaudio-equalizer
如你所见，最后一行内容如下：
E：无法找到包 pulseaudio-equalizer。
我参考的安装主要网页是http://www.webupd8.org/2013/10/system-wide-pulseaudio-equalizer.html
所以......有人能告诉我我哪里错了吗？