Caution

You're reading the documentation for a development version. For the latest released version, please have a look at 0.10.2.

librosa.db_to_power

librosa.db_to_power(S_db, *, ref=1.0)[source]

Convert dB-scale values to a power values.

This effectively inverts power_to_db:

db_to_power(S_db) ~= ref * 10.0**(S_db / 10)
Parameters:
S_dbnp.ndarray

dB-scaled values

refnumber > 0

Reference power: output will be scaled by this value

Returns:
Snp.ndarray

Power values

Notes

This function caches at level 30.