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 ...

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 ...

解 释: 一种新型的脉冲编码技术，它是利用自适应技术和差值编码技术相结合的一种编解码技术。可以使64 kbit/s的脉冲编码(PCM)信号进一步压缩为32 kbit/s的脉冲编码数据。使传输脉冲编码所需要的带宽减少一半，提高了信道的利用效率，并且还可以使脉码调制 ...

For technical and economic reasons, the present network of lines used for distributing sound signals to transmitters at audio frequencies will eventually have to be replaced by some telecommunication ...

Equipment is described which has been constructed for converting analogue television signals into 8-bit PCM signals and vice versa. The conversion rate used for video signals is approximately 13 ...

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 MAX98357A are digital pulse-code modulation (PCM) input Class D power amplifiers that provide Class AB audio performance with Class D efficiency. These ICs offer five selectable gain settings (3 ...

Oki Electric Industry today announced the development of three new models of Pulse Code Modulation (PCM) sound generator LSIs for mobile phones. The new products, the ML2863, ML2873 and ML2865, come ...