A sound logo is a type of sound trademark that is used along with advertising short music, brand theme music and a series of brand themes. A sonic logo is a short, unique tune or melody that is placed primarily at the beginning or end of an advertisement. Sound logos are of equal value to other visual logos, and a combination of sound and visual logos is often used to increase the recognition of a strong brand. Typical successful examples include Intel chip advertisements, Nokia's short startup music, Motorola's "hello moto", etc., all of which have formed unique pictures in consumers' minds, establishing a unique connection between these melodies and their merchants.

Sound logos on certain products will create a deep impression on specific customers. Melody is the most memorable combination of sounds because when a tune begins, one automatically thinks of the end. The most basic qualities of an ideal trademark are to be unique, memorable and flexible, and sound trademarks are no exception.

The following are some famous examples:

Intel’s “Intel inside”.

Nokia Song

Apple Macintosh computer startup sound

NBC's 3 note flourish incorporated into station id's and news themes

THX's Deep Note

Fourscore, the four note audio ident used by Channel Four Sound trademarks include many strategies to express the characteristics of an organization or product (what organization it is and what it represents), and to enhance the customer experience of a product or service. Experience or enhance the organization's relationship with its customers.

By creating users’ brand experience in areas with sound trademarks, operators can have deeper contact with users. Creating experiential opportunities for sound trademarks makes it possible to convey the essence and soul of the brand to customers.

Sound trademarks can be used via cell phones, ATMs, laptops, PDAs, and countless other audio devices to make enhancing the user experience easier and more enjoyable. Through these sounds, consumers may also experience some of the ideas of the company that created the sounds. Purpose makers, designers of software that create these sounds, and marketers express a vision for something by applying sound trademarks.

Another form of sound trademark involves an organization's public relations or sponsorship of a non-profit music organization, such as a musical artist or artist group. For example, some companies offer free music downloads on websites that have nothing to do with them.

Use a company slogan along with a pop music song to express the company’s unique selling features or brand value (rather than directly promote the brand or product). One example is the McDonald's restaurant song "Baba Baba Baba~~, I Just Like It" sung by Leehom Wang.