User's Manual

TITLE:
Product Specification for HS-W1
Revision:
001
Date:
11/30/2011
Prepared by:
Approved by:
Page: 13 of 18
本文件為美律實業股份有限公司專有之財產，非經書面許可，不准透露或使用本資料，亦不准複印，複製或轉變成任何其他形式使用。
The information contained herein is the property of Merry and shall not be distributed reproduced, or disclosed in whole or in part without prior written
permission of Merry.
4.2.8 Send THD
This is to be measured with a -4.7 dBPa(A) measured at MRP using a sweep sine signal played from
the HATS artificial mouth. The headset send THD shall fall below the upper limit given in the
following Table and Figure.
Limit Curve
Frequency (Hz)
Send THD Limit
(%)
Upper Limit
300
3
1000
3
5000
3
8000
3
4.2.9 Idle send noise
The idle send noise from the microphone shall be
idle send noise < -64 dBm0p
per the ITU-T P.310 recommendation, where the p denotes the psophometeric weighting defined in
the ITU-T 0.41 recommendation.