signature tune

音标发音

As the signature tune was faded out, the voices of a group talking around a table were faded up.
一群人圍著桌子講話的聲音隨著節目的開始曲的逐漸減弱而逐漸增強。
They had gathered in London in the early hours of the morning, hoping to hear the probe broadcasting its signature tune across the vastness of space from the red planet.
他們一大早就聚集在倫敦，期待著能夠聽到火星探測器從那個紅色星球、穿過浩淼的太空發出的信號。
gongwai.xaufe.edu.cn
The thesis was divided in four parts: the generation and management of digital certification, utilizing of Public system, utilizing of digital signature, the establishment of SSL secure tune.
本文共從四個部分闡述了網絡數據安全的實現：數字証書的生成和琯理、公開密鈅加密的實現、數字簽名的生成以及校騐、SSL安全通道的建立。

And it was her idea to include the sound of the tabla, an Indian drum, in NDTV's signature tune before newscasts.
FORBES: News Delhi TV

a short tune used in broadcasting at the beginning and/or end of a particular programme or to mark the appearance of a particular performer

Asignature tuneis the tune which is always played at the beginning or end of a particular television or radio programme, or which people associate with a particular performer.