Nokia Net Monitor description (DCT3)

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Test 78 – DSP audio enhancements (AEC)

Available in: 5110, 9210(i), ????

Test screen	Help screen

EAA: Electro-acoustic attenuation of echo from DSP point of view in dB. Decimal point and sign is not shown. E.g. -10.5dB would be displayed as "105", -0.5 dB would be displayed as " 5". 20*log10( Q15 )

Ada: Adaptive attenuation of echo. Decimal point is not shown. 20*log10( Q15 )

ERL: Total echo return loss. Decimal point is not shown. 20*log10( Q15 )

RxG: RX (received) attenuator gain in dB. Decimal point and sign is not shown. 20*log10( Q15 aec_rx_gain )

TxG: TX (sent) attenuator gain in dB. Decimal point and sign is not shown. 20*log10( Q15 aec_tx_gain )

GLi: Gain limit for RX and TX. Decimal point and sign is not shown. 20*log10( Q15 aec_gain_limit )

TxN: TX (sent) noise level in dB. Decimal point and sign is not shown. 20*log10( Q15 aec_tx_noise )

Sta (h): Adaptive filter status. (Q0 aec_nlms_state) (bit UPDATE)

Sta (i): Comfort noise generation (0 or 1) (Q0 AEC_TX_COMF_GEN)

Mod: AEC mode. (byte Q0 s_AEC_mode)

RVAD: Shows 16 last RX VAD decisions in HEX format. Hex( Q0 aec_rx_vadreg )

TVAD: Shows 16 last TX VAD decisions in HEX format. Hex( Q0 aec_tx_vadreg )

All these counters were equal 0 all the time (is something additionaly required to enable this test ?)

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WAP-gateway IP: 79.186.244.250
Port: 9201