[hank alrich]

Scott Dorsey wrote:

In article , Randy Yates wrote:

If dBFS is defined as

dBFS = 20 * log_10(XRMS / (RMS value of full-scale sine wave),

where XRMS is the RMS value of the digital data stream, and you're
generating a "digital square wave," then you are wrong. The digital
square wave can go to +3dBFS as defined above.

dBFS has not got a damn thing to do with sine waves or reference levels
or anything in the analogue world.

When the input sensitivity of the convertor is considered we have a
basis upon which to spec the relationship between the analog and digital
levels.

This holds only for that make and model of converter set to that
particular sensitivity (is such is adjustable).

It has ONLY to do with how far a digital level is below the point at
which the digital value reaches full scale (all bits on).
--scott


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