【摘要】：廣播電臺(tái)為了監(jiān)控廣播播出質(zhì)量、記錄停播事故、對(duì)主持人進(jìn)行考評(píng),都需要一套慢錄系統(tǒng)記錄播出情況。同時(shí),廣告收入是目前廣播電臺(tái)的主要收入來源,現(xiàn)代廣播電臺(tái)節(jié)目中廣告內(nèi)容地位非常重要,為對(duì)廣告主提供更好的服務(wù),也需要為廣告主提供便捷的播后查詢功能。因此慢速錄音系統(tǒng)對(duì)廣播電臺(tái)來說越來越重要。 傳統(tǒng)的慢速錄音系統(tǒng)是采用開盤機(jī)或者卡式磁帶錄音座(Cassette Tape Deck,簡(jiǎn)稱“卡座”)的LP/SLP模式進(jìn)行錄音的。這種模式下,需要對(duì)設(shè)備進(jìn)行改造,同時(shí)為了保存,還需要人工按時(shí)更換錄音帶,非常繁瑣。并且,人工更換盒帶不能保證及時(shí)性,造成部分時(shí)間段不能錄音,造成監(jiān)控的缺失。即使增加自動(dòng)倒帶及控制系統(tǒng),也存在設(shè)備可靠性低、錄音時(shí)間短等問題。 本文主要研究如何利用計(jì)算機(jī)系統(tǒng),增加聲卡和擴(kuò)展存儲(chǔ),實(shí)現(xiàn)替代傳統(tǒng)開盤機(jī)或者盒帶錄音的慢錄系統(tǒng),使系統(tǒng)提供更多功能的同時(shí),保證系統(tǒng)更可靠、方便易用。本文詳細(xì)分析了現(xiàn)存產(chǎn)品的優(yōu)勢(shì)和不足,提出了本系統(tǒng)的開發(fā)目標(biāo),然后針對(duì)節(jié)目單、錄音和界面模塊進(jìn)行分析設(shè)計(jì),并提供參考實(shí)現(xiàn)代碼。本文分析了廣播電臺(tái)的工作模式,并提出一種節(jié)目單的實(shí)現(xiàn)方法；并分析目前的錄音方式,提出了單臺(tái)計(jì)算機(jī)實(shí)現(xiàn)多通道錄音的方法,提供了dbFS的兩種計(jì)算方法。在界面實(shí)現(xiàn)部分,提供了Logo顯示和VU電平表的實(shí)現(xiàn)方法。
[Abstract]:In order to monitor the broadcast quality, record the off-broadcast accident and evaluate the host, the radio station needs a slow recording system to record the broadcast situation. At the same time, advertising revenue is the main source of income for radio stations at present. Advertising content plays a very important role in modern radio programs. It is also necessary to provide advertisers with a convenient post-broadcast query function to provide better services to advertisers. Therefore, the slow recording system is becoming more and more important to radio stations. The traditional slow recording system uses the LP/SLP mode of open disk recorder or cassette tape recorder (Cassette Tape Deck, for short. In this mode, the equipment needs to be modified, and in order to save, it is very tedious to replace the tape manually on time. Moreover, manual replacement of cassette can not ensure timeliness, resulting in part of the time period can not be recorded, resulting in the lack of monitoring. Even if the automatic rewind and control system is added, there are some problems, such as low reliability of equipment, short recording time and so on. This paper mainly studies how to use the computer system to increase the sound card and expand the storage, to realize the slow recording system instead of the traditional disk opener or cassette recording, so that the system can provide more multi-function and ensure that the system is more reliable and easy to use. In this paper, the advantages and disadvantages of the existing products are analyzed in detail, the development objectives of the system are put forward, and then the program list, recording and interface modules are analyzed and designed, and the reference implementation code is provided. In this paper, the working mode of radio station is analyzed, and an implementation method of program list is put forward, and the current recording mode is analyzed, and the method of realizing multi-channel recording by single computer is put forward, and two calculation methods of dbFS are provided. In the part of interface implementation, the realization methods of Logo display and VU level meter are provided.
【學(xué)位授予單位】：山東大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TP311.52

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本文編號(hào)：2482419