设计并实现了标准清晰度数字电视的立体声音频编码器。
Design and implementation of the audio encoder in SDTV are presented in this paper.
它主要包括MEPG2解调模块、数字视音频编码器和条件接收模块等。
It includes the MEPG2 demodulation module, the numeral regards the audio frequency coder and the conditional access module and so on.
文中介绍了MPEG - 4音频编码器的构成，并详细说明了其中几种主要编码器的基本原理。
The configuration of MPEG-4 audio encoder is introduced in this paper. Severalimportant main encoders are described in detail.
编码器被设置为amr_nb，这是音频格式，采样率为8KHz。
The encoder is set to the AMR_NB, which is an audio format, sampling at 8 KHz.
设计选用PCI多媒体接口芯片SAA7146A，方便的实现了与视频编码器、视频解码器和音频编解码器的连接。
It USES the PCI interface chip SAA7146A special for media processing produced by Philips, and connects simply with video encoder, video decoder, audio encoder and decoder.
该编码器的信号输入包括两种类型，模拟音频信号的输入和串行数字音频信号的输入。
There are two kinds of input signals in this encoder: analog audio signal input and serial digital audio signal input.
DTMF产生器与侦测器是被提供了，因此一般遇到的双音频能在另一端连接的声音编码器自然地重新产生，而不会作为语音格式解释。
The DTMF generators and detectors are provided so that commonly encountered tones can be reproduced naturally at the other end of a Vocoded link, rather than being interpreted as a form of speech.
该文阐述了音频压缩编码器的系统构成及基本原理，并且详细地的说明了硬件电路设计思想及相关时序波形的分析。
Not only the system architecture and basic principle are described in this paper, but also the design ideas are proposed and timing sequence of hardware is analyzed in detail.
解码器实质上是编码器的逆向结构和方法，产生一个听觉上不能与原始信号区分开的被还原的音频信号。
The decoder is essentially an inverse of the structure and methods of the encoder, and results in a reproduced audio signal that cannot be audibly distinguished from the original signal.
解码器实质上是编码器的逆向结构和方法，产生一个听觉上不能与原始信号区分开的被还原的音频信号。
The decoder is essentially an inverse of the structure and methods of the encoder, and results in a reproduced audio signal that cannot be audibly distinguished from the original signal.
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