Volume: Volume.
Bass: Bass.
Treble: a treble.
BAL: the volume is balanced left and right.
Fashion: front and rear volume balance.
Loud: equal sound, low volume will raise high and low notes.
EQ: Equalizer, which can adjust various modes (classic/rock/pop/flat).
LOC: far-near switch, a radio station that can only accept nearby distance and local signals.
ST: stereo.
INT: browse and play tracks.
Pause: Pause.
RPT: repeat playback.
RDM: Random play.
PRG: programming.
Stop: stop.
Scan: scan and play.
APS: Search for and automatically save the stations in the specified frequency band.
Mute: mute.
SEL: set the sound effect.
BT: bluetooth.
Auxiliary: audio input.
CLK: alarm clock.
Extended data:
Specific analysis of audio key function;
Read only memory.
RAM: Random access memory from which information can only be read. RAM can read and write information at any time, but the stored information is lost after power failure.
ADC: Analog-to-digital converter refers to a device that converts continuously changing analog signals into discrete digital signals. Real-world analog signals, such as temperature, pressure, sound or images, need to be converted into digital forms that are easier to store, process and transmit. A/D converter can realize this function.
OSD HD: Users can directly display the adjusted results and settings on the screen. At present, many digital screens support OSD, so the settings of width, height, brightness, contrast and color system that can be displayed on the screen are directly performed on the screen, and this function is directly supported by the display hardware.