12/08/2022

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Spotify’s most up-to-date invention presentations your speech, establishes your emotional state… and implies audio in accordance with it

Be mindful when Spotify was once granted a patent for temperament monitoring expertise, and the way unsettling it was once?

Printed in Oct 2020, the submitting mentioned that behavioural variables, reminiscent of a consumer’s mood, their favourite style of audio, or their demographic may just all prospectively “correspond to distinctive individuality options of a consumer”.

Spotify recommended that it would advertise customized articles – possibly audio advertising written content material, but additionally doubtlessly songs and podcast content material subject material – to other people targeted at the temperament qualities it detected in them.

Now, in step with details printed in a brand new US Spotify patent, the company needs to make use of engineering to get even deeper into its customers’ heads, through making use of speech reputation to ascertain their “emotional indicate, gender, age, or accessory” – attributes that may then be applied to endorse subject material.

The brand new patent, entitled “Identity of taste attributes from an audio sign”, which you’ll be able to read about in entire under, was once submitted in February 2018 and granted on January 12 this year.

In line with the submitting, SPOT’s new patent addresses a “manner for processing a furnished audio sign that comes to speech content material and historical past noise” after which “figuring out playable written content material, targeted at the processed audio sign subject material.”

Spotify issues out that “it’s widespread for a media streaming device to contain options that ship customized media ideas to a consumer”.

An present technique to figuring out what type written content material an individual wish to be beneficial, notes the submitting, is to invite them to present “elementary data those as gender or age”.

“A further elementary answer would possibly neatly simplest categorize [a user’s] emotion into blissful, indignant, scared, unlucky or impartial… Prosaic information (e.g. intonation, force, rhythm and the like of fashions of speech) can also be mixed and integrated with acoustic information inside a hidden Markov product structure, which allows one to make observations at a degree splendid for the phenomena to be modeled.”

Spotify Patent

Continues the submitting: “The shopper is then additional wondered to provide added data to slender down the amount even additional. In a single representation, the shopper is driven to a decision tree which contains, e.g., artists or presentations that the shopper likes, and fills in or selects answers to much more good-tune the gadget’s id in their tastes”.

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The program isn’t efficient enough, argues Spotify, as it comes to customers “to tediously enter solutions to more than one queries in acquire for the option to acknowledge the consumer’s tastes”.

Spotify’s answer? Acquire “style traits of a consumer”, using speech reputation applied sciences.

At 1 place, the patent signifies that acquiring “intonation, pressure, rhythm and the likes of fashions of speech” might be blended with “acoustic data in a hid Markov product structure” in order that Spotify’s utility may just categorize a consumer’s mood as “glad, offended, unlucky or impartial”.


How Spotify intends on endeavor this, in step with the patent, is through retrieving content material subject material metadata from a consumer’s voice and/or from {qualifications} sounds.

Along with examining traits this kind of as age, gender and accessory, that content material metadata may just indicate “an emotional indicate of a speaker offering the voice”.

Environmental metadata may just expose a novel historical past noises reminiscent of “sounds from automobiles on a boulevard, different people speaking, birds chirping, printers printing, and so forth” (see under).




Via figuring out a consumer’s mental situation from the sound in their speech, the filing issues out, a consumer’s ideas might be categorised making use of methods a lot of these because the a little intricate Parrott’s mental framework which “makes use of a tree-structured document of ideas with ranges”.

As mentioned, an extra “extra elementary manner” proposed within the submitting is to just establish a consumer’s mental situation from their speech as “glad, offended, afraid, unhappy or impartial”.

“For representation, prosodic information (e.g., intonation, concern, rhythm and the like of fashions of speech) can also be blended and built-in with acoustic information in only a hid Markov design structure,” provides the submitting.

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“The use of this structure, that prosodic information shall we the emotional indicate of a speaker to be detected and classified”.


Elsewhere, describes the submitting, age can also be “more or less” determined targeted on “a mix of vocal tract length and pitch”.

On most sensible of that, a “gender reputation program can also be made use of to extract the gender an identical main points from a speech sign and characterize it through a established of vectors referred to as a characteristic”. Features those as electrical energy spectrum density or frequency at utmost talent may have speaker information.

As proven in Fig. 2 above, content material is proposed to the listener as soon as all of this metadata has been extracted and analyzed at the side of a listener’s “earlier requests” their “listening and ranking historical past” and “hyperlinks to concerned profiles this type of as the ones of the consumer’s pals or colleagues”, as properly as “the consumer’s present new song collection and/or library”.

“In 1 representation, the output would possibly most likely merely simply be to benefit from the upcoming content material,” clarifies the submitting.

“In some other example, the output would possibly most likely be an offer on a visible display screen.

“Accordingly, in 1 element, the output is audio output of song similar to the tastes. In a unique representation element, the output is a computer screen of recommended long run song tracks similar to the personal tastes”.


That is probably the most present in a number of US patents granted to Spotify in the most recent months.

MBW came upon in September, as an example, that the platform have been granted a patent for a brand new karaoke-like characteristic that permits consumers to “overlay a tunes practice with their possess vocals”.

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In November, the company was once granted a patent that signifies the company is doing paintings on geo-specific promoting and advertising, the use of 3-D audio.New song Group International