Open the expanded iPhone player to inspect a track while it plays.

See the sound as it plays

Spectrum and Goniometer are live visualizer views in Traklist's expanded iPhone player. They help you inspect a track while it plays; they do not change the audio.

What Spectrum shows

Spectrum plots the track's live frequency content, from 20 Hz at the low end to 20 kHz at the high end, against a dB scale. It is useful when you want to see where energy is building or changing in a mix.

What Goniometer shows

Goniometer is a live stereo phase view. It shows the left and right channel relationship and includes a correlation meter from −1 to +1.

Switch between views

Open the expanded player, then swipe left from artwork to Spectrum. Swipe left again for Goniometer. Swipe right to return to an earlier view. Traklist shows a Swipe left hint when the visualizer is available.

Use Spectrum in landscape

While Spectrum is open, rotate your iPhone to landscape for a full-screen spectrum view. Rotate back to portrait to return to the player.

Compare view

During Gapless A/B Compare, Spectrum is the visualizer shown for the comparison. Goniometer is not available in Compare.

Choose your starting view and color

To choose whether the player opens on artwork, Spectrum, Goniometer, or your last-used view, and to set its color theme, see Choose player display and color preferences on iPhone.

On Web

Spectrum and Goniometer are iPhone visualizer views. The Web player does not have matching views.