db

Builtin index · Signal processing

db(x)

Input: x · Output: no output

What it is

Alias of mag2db(x) above (20*log10(x), amplitude convention) — the bare SciPy/general-DSP-flavored spelling.

Overloads

One call shape — this function is not overloaded.

Code	Input	Output	Description
`db(x)`	`x` —not documented yet	not documented yet	—

Examples

No documentation example calls this form yet. The Signal processing chapter is where one belongs.

How it works

db(x) — a bare, SciPy/general-DSP-flavored alias for mag2db(x) above: 20*log10(x), the AMPLITUDE/field-quantity convention (voltage, current, pressure, ...). mag2db/ db2mag stay the canonical names (see their own doc comment for why a single unqualified db() was deliberately left out originally) — this is only here because callers coming from SciPy/plain-DSP habit reach for a bare db() first, and it is clearer to answer that expectation explicitly, spelling out which convention it picked, than to leave it erroring.

From the note above this builtin in the interpreter, where the reasoning was written down as it was built.