编解码系统 meaning in English
pcm
Examples
- Pcm encoder decoder system for audio recording
音频记录pcm编解码系统 - This thesis first narrate h . 263 + encode / decode structure , then briefly teli of the progress of error resilience
263 +编解码系统结构。其次，总体上描述了差错恢复技术。 - A h . 263 real - time video coding system based on dsp chip is then designed which follows the develop flow of a dsp system
然后按照dsp系统的开发流程，设计开发了一个基于dsp芯片的h . 263实时视频压缩编解码系统。 - The experimental results manifest that the psnr of both the full reconstructed video sequences and the ones of frame rates changed are improved compared to the system base on haar wavelet . moreover , the decoding time of db2 filters is shorter than the haar one , the shorter the decoding time , the better the real - time displaying in the client side
实验结果表明,本系统与基于haar小波的可伸缩性视频编解码系统相比,完全重建的视频图像质量和帧速率改变后的重建视频图像质量都有了明显的提高,并且解码时间也有所缩短,具备了更好的实时性。 - Speech coding systems are generally based on narrowband speech at present , but its frequency is restricted in 200hz ~ 3400hz and its sample rate is 8khz . with the development of the wideband speech , its bandwidth which is from 50hz to 7khz causes the quality of speech communication to approach in the feeling of face - to - face conversation , and makes the speech natural , expressive and comfortable . hence , it ’ s quite significant in researching on wideband speech coding system . in recent 20 years , the dsp and its software development kit has improved greatly , but the price has fallen sharply , thus it has more and more widespread applications now
随着当今世界的飞速发展,宽带语音越来越受到人们的青睐,因为它的50hz 7khz的带宽使得语音通讯质量接近于面对面交流的感觉,大大提高了语音的自然度、表现力和舒适度。因此,开发研制基于宽带语音的编解码系统具有十分重要的意义。在过去的短短二十年里, dsp处理器的性能得到很大的改善,软件和开发工具也得到相应的发展,价格却大幅度地下降,从而得到越来越广泛的应用。