Velodyne DS-10 - Manual (Page 21)

OPTIMIZATION INTRODUCTION
This part of this manual first explains the optimization methods and nomenclature. To help you choose a method, this section then describes
the capabilities of each method as well as the time each optimization requires to complete. Next, to help you choose how to perform your
selected optimization method, this part describes the optimization TV screen interface.
To help you understand the parameters you can optimize, this section then discusses each how each parameter affects the subwoofer’s bass
output. Finally, this part recommends the basic methodology for performing Manual-EQ optimization.
oPtimizatioN methodS
The DS-10 subwoofer offers the Place & Play, Self-EQ, Auto-EQ and Manual-EQ optimization methods. EQ is a shorthand way to refer to
all the subwoofer’s parameters that can be changed to equalize how the subwoofer sounds throughout its frequency range. You choose
what is right for you although Velodyne recommends Auto-EQ as it automatically gives you great sounding bass in about 5 minutes
(not including setup time) and doesn’t require you to install and use the Velodyne-authored TV-screen interface to manually modify
the bass frequency response.
Place & Play
Place & Play setup doesn’t require the use of the supplied microphone. You can get great sounding bass from the factory-default EQ settings
with the ability to use the default preset EQ settings for different audio genres.
Self-EQ
Self-EQ is the simplest and fastest way to optimize the bass response from your subwoofer for your room. Self-EQ adjusts the levels of eight
parametric EQs only. Self-EQ uses a sweep tone generated from the subwoofer itself that is picked up using the calibrated microphone.
Self-EQ smoothes the frequency response of the subwoofer from 15 to 120 Hz and leaves the settings for volume, crossover, slope and
phase unchanged.
Auto-EQ (Recommended)
Auto-EQ is recommended by Velodyne. Auto-EQ is a highly advanced way to automatically optimize the bass response from your subwoofer
and audio system. During the Auto-EQ process, the Auto-EQ digital signal processing algorithm uses a calibrated microphone and the sweep
tone played through your system to optimize the low frequency output response. Auto-EQ or adjust the levels of the eight parametric EQ’s
only. Auto-EQ leaves the settings for volume, crossover slope and phase unchanged.
Auto-EQ is recommended because, unlike Self-EQ, it optimizes the subwoofer to the audio system and satellite speakers, but is not as
complex and time-consuming as Manual-EQ.
Manual-EQ
Manual-EQ is the most customized way to optimize the bass response from your subwoofer. The Auto-EQ optimizes in a manner that sounds
great for many people. However, we at Velodyne understand that everyone has unique listening preferences and that there are thousands and
thousands of receiver, processor, speaker and room combinations. Hence, the DS-10 subwoofers and the Auto-EQ system are designed to
support custom EQ settings through the Manual-EQ process. We recommend you start your Manual-EQ optimization with the settings from
the Auto-EQ optimization as a starting point for you to further tune the DS-10 subwoofer to your preference. You can optimize the subwoofer
for the preset levels, crossover filter parameters, and phase as well as the full parametric filter parameters.
Manual-EQ also uses the sweep tone played through your system, but also requires you to use the Velodyne-authored TV-screen interface to
manually modify the bass frequency response.
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PART THREE — OPTImIZE
Digital Servo User’s Manual