Sonic signatures are a particular form of branding which are highly intentional in order to spark brand recognition. Think of Amazon's Alexa two-tone confirmation. The reason why these sonic signatures work is because they have a strong speaker impact and with the increasing rate at which we are using smart speakers like Alexa or Nest, making the sonic signatures almost essential to everyday product development.
We can't limit the relevance of sonic signatures to just smart speakers. Since branding just embedded at each consumer touchpoint which is why brands like Mastercard are including sonic branding when customers complete a purchase. This helps consumers create an unconscious brand association and reinforces the consumer to brand relationship.
Do you think your brand needs a sonic signature? Check out the full post on Forbes