PCM语音复用设备，中文称脉码调制，由A.里弗斯于1937年提出的，这一概念为数字通信奠定了基础，60年代它开始应用于市内电话网以扩充容量，使已有音频电缆的大部分芯线的传输容量扩大24～48倍。各国相继把脉码调制成功地应用于同轴电缆通信、微波接力通信 ...

Analog transmission is not particularly efficient. When the signal-to-noise ratio of an analog signal deteriorates due to attenuation, amplifying the signal also amplifies noise. Digital signals are ...

开博尔最新发布的Q50支持PCM 32bit/768kHz格式,但是很多新客户不明白这些数字是什么意思,我这里就为大家解答一下。 PCM(Pulse Code Modulation)也被称为脉冲编码调制,它是一种脉冲调制方式,先对信号进行周期的取样,再把每个取样进行量化,以数码方式进行传输。也就是将 ...

In MIPI Soundwire: Digital Audio Simplified, we mentioned that digital audio formats including Pulse Code Modulation (PCM) and Pulse Density Modulation (PDM) are target applications for MIPI Soundwire ...

In PCM systems, distortion of very low level signals is known to occur, and in high-quality programme distribution it is the most objectionable signal degradation caused by this kind of system. This ...

The Model A0050003 PCM (pulse code modulation) channelanalyzer from GAO Comm can be used to measure the PCM voice encoding and decodingperformance of digital switches, carrier-wave communication ...

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