Yamaha 03D Application Manual page 86

Sound Localization & Sound Image Control (Using Hass Effect)
Using the bus assign, the main PA sound can be positioned to match that of the sound
source. Delays in multiple speaker systems can be compensated using the bus output delays
(Hass Effect).
In a large or medium-sized church or hall with rear or side speakers, where the sound image
needs to direct listeners towards the presenter or sound source, adding a small delay of
between 10 and 20 milliseconds to the rear speakers gives the impression that the presenter
is actually located in front, not behind (Hass Effect). Each 03D output can be delayed by up
to 40 milliseconds.
To achieve the Hass Effect, a small delay must be used in addition to the delay used to
compensate for speaker distance. For example, if the distance between the front and rear
speakers is 30 meters, the speaker distance compensation delay will be 87 milliseconds
(30/344 = 0.087, where 344 is the speed of sound). To this a small delay of between 10 and
20 milliseconds should be added to achieve the Hass Effect.
Formula for setting total delay is
(distance between front and rear speakers/344) + 10–20 ms
Front
Presenter
1 2 3 4 5 6 7 8 9 10
PAD
26dB 26dB 26dB 26dB 26dB 26dB 26dB 26dB
–16 –60 –16 –60 –16 –60 –16 –60 –16 –60 –16 –60 –16 –60 –16 –60 +10 +10 –20 +10 +10 –20 +10 +10
+10 GAIN –34 +10 GAIN –34 +10 GAIN –34 +10 GAIN –34 +10 GAIN –34 +10 GAIN –34 +10 GAIN –34 +10 GAIN –34 GAIN GAIN
SETUP
SCENE MIDI
MEMORY UTILITY MIDI REMOTE
DIO GROUP/PAIR SOLO SETUP AUTOMIX
CHANNEL CONTROL SCENE MEMORY USER DEFINE
FUNCTION
DELAY/Ø DYNAMICS PAN/ROUTING VIEW
SEL CH
EQ LOW LO-MID HI-MID HIGH
EQ LIBRARY EQ FLAT
FADER MODE
AUX 1 AUX 2 AUX 3 AUX 4
FADER EFFECT 1 EFFECT 2
FADER
STATUS
METER
MIXING LAYER FADER 1–8 9–12 13–16 ST IN
1–16
17–24/MASTER
1 2 3 4 5 6 7 8 9 10 11
17 18 19 20 21 22 23 24 AUX1 AUX2 AUX3
SEL SEL SEL SEL SEL SEL SEL SEL SEL SEL SEL
ON ON ON ON ON ON ON ON ON ON ON
6 6 6 6 6 6 6 6 6 6 6
0 0 0 0 0 0 0 0 0 0 0
5 5 5 5 5 5 5 5 5 5 5
10 10 10 10 10 10 10 10 10 10 10
20 20 20 20 20 20 20 20 20 20 20
40 40 40 40 40 40 40 40 40
40 40
60 60 60 60 60 60 60 60 60 60 60
00 00 00 00 00 00 00 00 00 00 00
1 2 3 4 5 6 7 8 9 10 11
17 18 19 20 21 22 23 24 AUX1 AUX2 AUX3
03D
PHONES
11 12 13 14 15 16 ST IN MONITOR PHONES
OUT
SOLO/ 2TR IN
–20 +10 +10 –20 +10 +10 –20 +10 +10 –20 +10 +10 –20 +10 +10 –20 +10 +10 –20 0 10 0 10
GAIN GAIN GAIN GAIN GAIN GAIN GAIN LEVEL LEVEL
SCENE MEMORY SOLO
UNDO/
REDO SOLO
STORE RECALL
Delay
USER DEFINE
1 2
L STEREO R
CLIP
PARAMETER
–3
–6 3 4
–9
–12
–15
–18
–24
ENTER
–30
–36
–42
–48
CURSOR
EFFECT RTN
1 2
12 13 14 15 16
ST IN EFFECT ST OUT
RETURN
AUX4 BUS1 BUS2 BUS3 BUS4
SEL SEL SEL SEL SEL SEL SEL SEL
ON ON ON ON ON ON ON ON
6 6 6 6 6 6 6 6
0 0 0 0 0 0 0 0
5 5 5 5 5 5 5 5
10 10 10 10 10 10 10 10
20 20 20 20 20 20 20 20
40 40 40 40 40 40 40 40
60 60 60 60 60 60 60 60
00 00 00 00 00 00 00 00
12 13 14 15 16
ST IN EFFECT ST OUT
RETURN
AUX4 BUS1 BUS2 BUS3 BUS4
Delay
10–20 ms
Delay
10–20 ms
Delay
10–20 ms
Delay
10–20 ms
03D Applications 81
Rear
Listener
Stereo out
Stereo out
Front
Bus out
Bus out
Bus out
Rear
Bus out
Yamaha 02R & 03D Applications Guide