JBL SynthesisPCM Effects and Parameters36FootballThe Football Effect uses a reverberation algorithm, which differs fromambience in that it does not simulate the reflections of specific halls, butemphasizes rich, smooth reverberant decay in small and mediumspaces. It works well for simulating a space with a long reverberationtime relative to its size, and for simulating the sound of a live sportingevent.Parameter Initial Value RangeCENTER LEVEL 13 0-15SPEECH DETECT ON ON, OFFMID RT .45 sec .21-3.22 secBASS RT .56 sec 0.7, 1.0, 1.25xMID RTHALL SIZE 7 Meters 4-30 MetersPRE-DELAY 40ms 0-88msROLLOFF 4.0kHz 453Hz-20.0kHzSUBWOOFER LVL +0dB -10dB to +10dBEFFECT LEVEL +00dB -30 to +05dBCUSTOM/TRIGGER ENABLE ENABLE, DISABLEClassicalThe Classical Effect generates the appropriate early reflections forstereo simulation of many different halls, and sends the reflections to allchannels in addition to the direct signal in the main speaker. This Effectis not appropriate for highly percussive music.Parameter Initial Value RangeCENTER LEVEL 0 0-15SPEECH DETECT ON ON, OFFHALL SIZE 20 Meters 20-30 MetersLIVENESS 4 0-6ROLLOFF 11.8kHz 453Hz-20.0kHzSUBWOOFER LVL +0dB -10dB to +10dBEFFECT LEVEL +00dB -30 to +05dBCUSTOM/TRIGGER DISABLE ENABLE,DISABLEParameter Initial Value RangeCENTER LEVEL 0 0-15SPEECH DETECT ON ON, OFFMID RT 3.90 sec 1.14-17.04 secBASS RT 4.87 sec 0.7, 1.0, 1.25xMID RTHALL SIZE 38 Meters 20-38 MetersPRE-DELAY 40ms 0-88msROLLOFF 3.3kHz 453Hz-20.0kHzSUBWOOFER LVL +0dB -10dB to +10dBEFFECT LEVEL +00dB -30 to +05dBCUSTOM/TRIGGER DISABLE ENABLE, DISABLECathedralThe Cathedral Effect uses a reverberation algorithm which emphasizesrich, smooth reverberant decay in large spaces. As its name indicates,it works well for simulating a space with a long reverberation timerelative to its size, such as a cathedral.