pydsm.iso226.tabled_L_p¶
- pydsm.iso226.tabled_L_p(L_N, hfe=False)¶
Table of sound pressure levels for given loudness in ISO 226.
This function returns a table according to ISO 226 sect 4.1.
Parameters: L_N : float
percieved loudness level in phons
hfe : bool
whether the table should be augmented with a data point at 20 kHz (High-Frequency-Enhanced table)
Returns: L_p : array of floats
the sound pressure level table. Sound pressure levels are returned in DB_SPL
Notes
1 phon is 1 dB_SPL (sound pressure level) at 1 kHz. Sound pressure levels are measured in dBs by referring to a reference pressure level P0 (close to the hearing threshold at 1 kHz and set to 20 uPa RMS).