<br />
<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_n3eisji8tg9aj1v1k6j3gl4jg6, O_RDWR) failed: No space left on device (28) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
<br />
<b>Warning</b>:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
!752

static int window =
  8; // erratic
  //100; // stable
  //20; // compromise?

p {
  final DialogIO io = findBot("Music");
  final JPanel panel = singleColorPanel(Color.black);
  showFrame(panel);
  installTimer(panel, 100, r {
    S s = io.ask("pcm data " + window);
    if (eq(s, "null")) ret;
    byte[] pcm = (byte[]) safeUnstructure(s);
    if (pcm != null) {
      Color color = levelToColor(pcmToLevel(pcm));
      panel.setBackground(color);
    }
  });
}

static Color levelToColor(float l) {
  ret new Color(0, l, 0);
}