[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

信噪比≥95dB才能保证怠速和低音量时无明显底噪;车载环境电流干扰大,若信噪比<90dB在安静路段会听到电流声(发动机转速变化时嗡嗡声)

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Long-term
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