Mary and Bertha (2010) point out that âCommunication is the transmission of information and meaning from one individual or group to another.â (Page 5) The term communication means that the sender has an idea and the sender encodes the message which will be decodes by the receiver.
Playback Controls. Playback controls came into existence due to the popularity of cell phones. Originally, the controls were located on the headset cable and included a small microphone and buttons to control the call, such as the ability to hang up.
If Meter Toolbar is not visible, go to and enable the Meter Toolbar. 1  This volume level can be modified with the -....+ gain slider on the Track Control Panel of each track. 2  The left-hand playback (output) volume slider on the Mixer Toolbar controls only the volume at which you hear the tracks in Audacity. It does not affect the Playback Meter. Only moving the gain slider, or changing the track volume by editing will affect the meter.