The more number combinations you can get in these binary words the more steps of level you can get in amplitude. Bits are with each sample of audio. You can choose any sample of audio and freeze it in time to see the Bit Depth.
To understand what is a frame in regrads to time code? we first need to understand there are several varieties of Time Code used across the world and they consist of two variables which I have outlined below:
VITC, which stands for Vertical Interval Time Code (abbreviated VITC and sometimes pronounced VIHT-see) is data which is encoded into the blank “vertical interval” between video frames.
LTC stands for Longitudinal Time Code. This is a audio signal which transmits a series of square waves from a “Master” device. The Master device would be the main device you are running the timecode from, this could be from mixer to camera or separate timecode box to a mixer or camera.
Society of Motion Picture and Television Engineers. This is the body that developed this standard. You will find this is a rule for many standard like digital being AES, Audio Engineering Society.
Below is a little video I shot in Pro Tools and I give you an example of what In Phase and Out Of Phase sounds like. This also ties in with wave interference so I show you the resulting effects of the same clips of me talking “in phase” (aka perfectly matching) versus just a single source.
The half power point essentially establishes that a -3dB difference is half the power of any frequency played through a speaker. A mono signal played through 1 speaker is going to be 100% volume, but when played through 2 speakers you have double the speakers so essentially only need half the power from both to perceive no change in level.