Quectel UG Series User Manual

UMTS/HSPA Module Series
WCDMA UGxx AT Commands Manual
WCDMA_UGxx_AT_Commands_Manual Confidential / Released 197 / 247
Par9 SER (Spectral Echo Reduction) control word, 1: enable, 0: disable, default value
might be different in different audio modes
Par10 SER_Beta, Smoothing factor of the echo reduction applied by the SER, range:
0-32767. Default value might be different in different audio modes
Par11 SER_Overest, Overestimation factor of the echo estimation, range: 0-32767.
Default value might be different in different audio modes
Par12 SER_NoiseLevel, Overestimation factor of the noise estimation, range: 0-32767.
Default value might be different in different audio modes
Par13 SER_MultCtrl, Allowed amplitude of short-term variations of noise estimation,
range: 0-32767. Default value might be different in different audio modes
Par14 AGC (Automatic Gain Control) control word, 1: enable, 0: disable, default value
might be different in different audio modes
Par15 RE_LdAddGain, Additionalgain, range: -16384~16384. Default value might be
different in different audio modes
Par16 RE_LdGainLoLim, Total gain lower limit, range: 0-16384. Default value might be
different in different audio modes
Par17 RE_LdGainUpLim, Total gain upper limit, range: 0-16384. Default value might be
different in different audio modes
Par18 RE_NrShliFilt, Shifts for gain smoothing, range: -36~36. Default value might be
different in different audio modes
Par19 RE_TriggerOffset, AGC trigger offset for the decision logic to allow more
double-talk, range: -16384~16384. Default value might be different in different
audio modes
Par20 RE_FarPowerCenter, Threshold on far-end power (below which overestimation is
Par22, above which estimationisPar23), range: 0-16384. Default value might be
different in different audio modes
Par21 RE_FarPowerDistorted, Threshold on far-end overestimated power (above which
overestimated by Par24, to compensate residual echo when strong LS distortion),
range: 0-16384. Default value might be different in different audio modes
Par22 RE_FarOverEstR0, Far-end power overestimation ratio if loudspeaker power is
below Par20, range: 0-14666. Default value might be different in different audio
modes
Par23 RE_FarOverEstR1, Far-end power overestimation ratio if loudspeaker power is
abovePar20, range: 0-14666. Default value might be different in different audio
modes
Par24 RE_FarOverEstR2, Far-end power overestimation ratio if loudspeaker power is
above Par21, range: 0-16384. Default value might be different in different audio
modes
Par25 EDL (Echo Delay Lines) control word, 1: enable, 0: disable, default value might be
different in different audio modes
Par26 Delay in milliseconds in the echo reference path, range: 0-60. Default value might
be different in different audio modes
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Quectel UG Series Specifications

General

Brand	Quectel
Model	UG Series
Category	Control Unit
Language	English