There are various controls which you can use to assist in analsying a recording.

Playback Controls

Play

Commence playing the recording you have loaded in to TwelveKeys. You can also use the spacebar to toggle playback.

Stop

Stop playing the recording you have currently loaded in to TwelveKeys. You can also use the spacebar to toggle playback.

Start

Click on this button to return to the start of the recording. If you have set a loop on the recording then you will return to the start of the loop. Shortcut key: Home

Rewind

Rewind the recording. You can alter the speed of rewinding and fast forwarding by adjusting the sliders in the TwelveKeys Options dialog. Shortcut Key: Left

Fast Forward

Fast forward the recording. You can alter the speed of rewinding and fast forwarding by adjusting the sliders in the TwelveKeys Options dialog. Shortcut Key: Right

Scrub

When you put a recording into scrub mode you will be able to hear the exact part of the recording you are on even though the recording is not playing. Scrub can be useful if you want to pause on a particular section of the recording but still hear what is happening underneath. Shortcut Key: Control + Spacebar

Loop

Select this menu option to enable or disable looping. You can access the loop controls by right clicking on the graph. To specify a region to loop, right click on the graph and select your start and end points. You should see two bars indicating the loop region. Shortcut Key: L

Menu

TwelveKeys ==> Open

Open a recording from a browseable location on your computer.

TwelveKeys ==> Load CD Track(s)

You can directly load a recording from a CD into TwelveKeys. If you would like TwelveKeys to automatically download track information for you then make sure you have the Use Free CDDB option selected in the TwelveKeys Options.

Controls ==> Loop, Play, Stop

These menu items are the same as the buttons at the bottom of the screen. Please read the above section for details on how they work

Keyboard

You can click on the keyboard to hear that corresponding note. This is useful in identifying which marks on the pitch analysis screen correspond to the instrument or voice you are transcribing.

Below the main panel there is a tuning slider. You can tune the keyboard up and down to help fit songs which may be recorded at slightly lower or higher pitches than the standard. TwelveKeys' tuning defaults to A440 (A = 440Hz).

Gain

The gain slider can be used to boost or cut the intensity of the colour display. The highest volume notes will appear with the foreground color, with quieter ones fading into the background color. These colors can be changed by right-clicking on the main window or using the options dialog. Moving the gain slider has an instant effect on the graph.

Speed

You can modify the speed of playback without affecting the pitch of the notes being played. This can be particularly useful for sections of music where there are many rapid notes. Adjust the slider to the speed you would like to hear the recording at.

Volume

Next to the playback controls are a volume slider, DB display meter and a clock indicating the current playback position.