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2.3 D
OWNLOAD THE CALIBRATION FILES
You will need two calibration files, one for the left channel and one for the right. You can download these files
from the
EARS page
on miniDSP.com by entering your EARS serial number.
You will also need to select a compensation (see Section 4 for more information). Table 2 lists the recommended
compensation curves for headphones and IEMs with the corresponding downloaded file names. (xxxyyyy in the
file name is the serial number of your EARS unit.)
Code
HEQ
HEQ
IDF
IDF
2.4 C
ONNECT FOR MEASUREMENT
Figure 1 shows a typical connection scheme for headphone measurement. The diagram shows a miniDSP HA-
DSP but you can use any other headphone amplifier. If your headphone amplifier doesn't have a USB input, then
you will need to adjust accordingly i.e. by using a separate DAC and headphone amplifier. If your headphone
amp has DSP or EQ in it, make sure that it is completely disabled when running measurements.
miniDSP Ltd, Hong Kong /
www.minidsp.com
Table 2. Naming of calibration files for EARS
Type
Over-ear headphone
Over-ear headphone
IEM diffuse field
IEM diffuse field
Figure 1. Typical connection for headphone measurement
/ Features and specifications subject to change without prior notice
Channel
File name
Left
L_HEQ_xxxyyyy.txt
Right
R_HEQ_xxxyyyy.txt
Left
L_IDF_xxxyyyy.txt
Right
R_IDF_xxxyyyy.txt
8
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