SNR(Typ)(dB)120 # DACs1 # Inputs / # Outputs0 / 1 Sampling Rate(Max)(kHz)768 Resolution(Bits)24 Control InterfaceH/W Analog Supply(V)+/- 4.75 - 5.25 Digital Supply (up to 5 V)(V)+/- 4.75 - 5.25 Pd(Typ)(mW)175 Pin/Package20SO ...
SNR(Typ)(dB)120 # DACs1 # Inputs / # Outputs0 / 1 Sampling Rate(Max)(kHz)768 Resolution(Bits)20 Control InterfaceH/W Analog Supply(V)+/- 4.75 - 5.25 Digital Supply (up to 5 V)(V)+/- 4.75 - 5.25 Pd(Typ)(mW)150 Pin/Package16PDIP, 20SO ...
以dB计算的信号最大保真输出与不可避免的电子噪音的比率。该值越大越好。低于75dB这个指标,噪音在寂静时有可能被发现。AWE64 Gold声卡的信噪比是80dB,较为合理。SBLIVE更是宣称超过120dB的顶级信噪比。总的说来,由于电脑里的高频干扰太大,所以声卡的信噪比往往不令人满意。 分类 音频信噪比 简介 音频信噪比是指音响...
POWERTYPE可以是’dB’或’linear’。如果POWERTYPE是’dB’,那么SNR以dB为单位,而SIGPOWER以dBW为单位。...分贝(decibel, dB):分贝(dB)是表示相对功率或幅度电平的标准单位,换句话说,就是我们用来表示两个能量之间的差别的一种表示单位,它不是一个绝对单位。...例
1、佩戴耳罩耳塞降噪后人员接受的实际噪音值>85dB,降噪不足 2、佩戴耳罩耳塞降噪后人员接受的实际噪音值介于80-85dB之间,可接受 3、佩戴耳罩耳塞降噪后人员接受的实际噪音值介于75-80dB之间,最佳 4、佩戴耳罩耳塞降噪后人员接受的实际噪音值介于70-7...
A fully differential amplifier that operates from a 3.3V±±10% power-supply and featuring a -100dB THD at 2Vpp output voltage was realized. Equivalent input noise in the 100Hz - 10kHz audio-band is IμVrms, leading to a 120dB SNR. This amplifier is used as the core of a ...
Ratio)is a ratio based value that evaluates your signal based on the noise being seen.SNR is comprised of 2 values and is measured as a positive value between0dband120dband the closer it is to 120db the better: signal value and noise value typically these are expressed in deci...
拿CS4398 和 PCM 1792 来说 THD 都非常小,但是后者只有前者一半,SNR 后者比前者多了 10dB(120dB vs 130dB)。从这些指标上也可以看出不同片子的级别。 一般人耳能够比较享受的 dynamic range 也就 80dB 左右,而非常安静的环境一般底噪在 30dB。
里面提到,OSHA给出的标准是在120dB的声压下不能暴露超过7.5分钟,否则会造成永久损伤。而很多研究机构认为这个声压仍然过高,其中NIOSH给出的标准则更加保守:在103dB的声压下不能暴露超过7.5分钟。这样的话即使是CD标准(16bit/44.1kHz)的最大声压10dB+96dB也有可能对听力造成损伤。
SNR (Signal-to-Noise Ratio)is a ratio based value that evaluates your signal based on the noise being seen.SNR is comprised of 2 values and is measured as a positive value between0dband120dband the closer it is to 120db the better: signal value and noise value typically these are expres...