铁路行车调度通话及在其它重要场合下的通话都需要有录音装置。以前采用的是磁带式机械录音机。在科学技术高度发展的今天,这种老式录音设备已经不能适应铁路现代化的需要,暴露出许多自身难以克服的缺点,如:设备机械部件容易损坏、日常维修量大、需要专人定期保养维护、存贮时问短、需频繁更换磁带、可靠性低等。为此,我们利用高速信号处理器(DSP)研制出了一种新型的数码固态语音记录设备。这种语音记录设备,采用高速信号处理器(DSP)对数字化后的语音信号进行深度压缩,再将压缩后的数据和日期时间信息一起,记录到FLASH存贮 Voice recording devices are required for railway traffic dispatch calls and for calls in other important occasions. Previously used was a tape mechanical recorder. With the development of science and technology, this kind of old-fashioned recording equipment can no longer meet the need of railway modernization and exposed many shortcomings that can not be overcome by itself. For example, mechanical parts of equipment are easily damaged, large amount of daily maintenance is needed, and regular maintenance is required. Storage time is short, frequent replacement of the tape, low reliability. To this end, we use high-speed signal processor (DSP) developed a new type of digital solid-state voice recording equipment. This voice recording device uses a high-speed signal processor (DSP) to compress the digitized voice signal, and then records the compressed data and the date and time information in a FLASH memory