C55/C55i AT COMMAND SET Description Preliminary - Falcom

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C55/C55I AT COMMAND SET VERSION 1.00 14.8 AT ^ SNFI Set microphone path parameters Syntax Test Command AT^SNFI=? Read Command AT^SNFI? Write Command AT^SNFI = , Response(s) ^SNFi: (list of supported s), (list of supported s) OK Response(s) ^SNFi: (list of supported s), (list of supported s) OK Response(s) OK Reference(s) PIN ASC0 SIEMENS ○ ● Command Description TA sets microphone path amplifying. Parameter Description (num)(^SNFW) ADC gain adjustable in eight 6 dB steps from 0 dB to 42 dB (0=0dB, 7=42dB, 8 steps of 6 dB). 0...7 (num)(^SNFW) Multiplication factor for input samples. Formula to calculate the negative gain (attenuation) of the input signal: Gain in dB = 20 * log (inCalibrate / 32768) 0...32767 Notes • Write command works only in audio modes 2 to 6! • Read and write options of this command refer to the active audio mode. • The range of is up to 65535 but will be suppressed to 32767. Values above = 65535 will cause a failure. • Changed values have to be stored with at^snfw. • Attention! When you adjust audio parameters avoid exceeding the maximum allowed level. Bear in mind that exposure to excessive levels of noise can cause physical damage to users! • The default values are customer specific. This confidential document is the property of FALCOM GmbH and may not be copied or circulated without permission. Page 266
C55/C55I AT COMMAND SET VERSION 1.00 14.9 AT ^ SNFO Set audio output (= loudspeaker path) parameter Syntax Test Command AT^SNFO=? Read Command AT^SNFO? Write Command AT^SNFO=, [0], [1], [2], [3], [4], , Response(s) ^SNFO: (list of supported s) (list of supported s) (list of supported s) (list of supported s) OK Response(s) ^SNFO: , [0], [1], [2] [3], [4], , OK Response(s) OK Reference(s) PIN ASC0 SIEMENS ○ ● Command Description TA sets earpiece path amplifying. Parameter Description (num)(^SNFW) Negative DAC gain (attenuation) adjustable in four 6 dB steps from 0 dB to -18 dB (0=0 dB, 3=-18 dB) 0...3 (num)(^ASNFW) Formula to calculate the value of the 5 volume steps selectable with parameter : Attenuation = 20 log * (2 * outCalibrate[n] / 32768) 0...32767 (num) Volume steps 0 - 4, each defined without Calibrate[n] (nun)(^SNFW) Multiplication factor for the sidetone gain. Formula to calculate how much of the original microphone signal is added to the earpiece signal: Sidetone gain in dB = 20 * log (sideTone / 32768). 0...32767 Notes • The write command works only in audio modes 2 to 6. This confidential document is the property of FALCOM GmbH and may not be copied or circulated without permission. Page 267
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C55/C55i AT COMMAND SET Description Preliminary - Falcom

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