Correction de phase et d'amplitude

[jimbee]

Et puis si les pros les plus austères s'y mettent, on va pas s'gêner.

https://www.meyersound.com/sites/default...ner_ds.pdf


Architect Specifications:

The loudspeaker shall be a self-powered, full-range system;
the transducers shall consist of a 12-inch diameter cone driver
and a 4-inch diaphragm compression driver on an 80-degree
horizontal by 50-degree vertical horn. The loudspeaker system
shall incorporate internal processing electronics and a two-
channel amplifier, one channel for each driver. Processing
functions shall include frequency and phase correction, signal
division, and protection for the low- and high-frequency
sections. The crossover point shall be 680 Hz

phase response 230 Hz - 17 kHz +/- 30°

Chez GrimmAudio:

http://www.grimmaudio.com/pro-products/loudspeaker/ls1/

An IIR crossover imposes exact LR4 acoustic slopes crossing at 1550Hz, and the phase is subsequently corrected using an idealised inverted all-pass filter, resulting in a maximally linear phase response without any pre-echo’s.