> This page is for Expression Measurement. > For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://dev.hume.ai/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://dev.hume.ai/_mcp/server. # Audio measurements **The audio upload and realtime endpoints return two arrays of scores for each window of speech: `expressions` and `voice_attributes`.** [Scores](/expression-measurement/docs/scores) explains how to read them. #### Measurement (excerpt) ```json { "expressions": [ { "name": "interest", "probability": 0.6231 }, { "name": "amusement", "probability": 0.4187 } ], "voice_attributes": [ { "name": "clear", "probability": 0.9612 }, { "name": "calm", "probability": 0.9148 } ] } ``` ## Expressions Expressions in the speech, such as `joy`, `anger`, and `amusement`. 415 names.
`abhorrence` `dumbfoundedness` `feeling uplifted` `pleasure`
`admiration` `eagerness` `feeling upset` `pondering`
`adoration` `earnestness` `feeling valued` `pride`
`aesthetic appreciation` `ecstasy` `feeling violated` `pride in country`
`affection` `egotism` `feeling vulnerable` `pride in family`
`aggression` `elation` `feeling worn out` `pride in self`
`agitation` `elevation` `fierce loyalty` `puzzlement`
`agony` `embarrassment` `flinching` `rage`
`alarm` `empathic pain` `focus` `rapture`
`amazement` `empowerment` `fondness` `redemption`
`amusement` `enchantment` `freezing with terror` `regret`
`anger` `enjoyment` `frustration` `relaxation`
`anguish` `enthusiasm` `fulfillment` `releasing tension`
`anticipation` `entrancement` `fuming` `relief`
`anxiety` `envy` `fury` `remorse`
`apathy` `epiphany` `giddiness` `respect`
`appreciation` `euphoria` `giddy anticipation` `restlessness`
`arousal` `excitement` `giggling` `reverence`
`astonishment` `exhaustion` `glee` `revulsion`
`attentiveness` `exhilaration` `gloating` `righteous indignation`
`attraction` `existential dread` `gloom` `romance`
`awe` `extreme pleasure` `glory` `romantic jealousy`
`bafflement` `exuberance` `going ballistic` `sadness`
`basking` `fascination` `goosebumps` `sarcasm`
`befuddlement` `fatigue` `gratification` `satisfaction`
`bewilderment` `fear` `gratitude` `satisfaction with life`
`bitterness` `fearful awe` `grief` `savoring`
`bliss` `feeling absorbed` `grimacing` `scorn`
`blushing` `feeling appalled` `grouchiness` `seething`
`boldness` `feeling appreciated` `grumpiness` `self-confidence`
`bone-chilling terror` `feeling apprehensive` `guilt` `self-consciousness`
`boredom` `feeling at ease` `guilty pleasure` `self-doubt`
`brotherly love` `feeling bashful` `happiness` `self-loathing`
`butterflies in stomach` `feeling bittersweet` `hate` `self-love`
`camaraderie` `feeling bored to tears` `hatred` `self-pity`
`captivation` `feeling cheated` `having fun` `sense of belonging`
`caring` `feeling competitive` `heart sinking` `sense of failure`
`caution` `feeling cool` `heartache` `sense of inertia`
`certainty` `feeling creeped out` `heartbreak` `sense of injustice`
`charm` `feeling crushed` `heavenly bliss` `sense of security`
`cheer` `feeling deceived` `hesitancy` `sensory pleasure`
`cheerfulness` `feeling disheartened` `hesitation` `serenity`
`childlike curiosity` `feeling disoriented` `high spirits` `sexual arousal`
`chills down spine` `feeling distraught` `honor` `sexual desire`
`choking up` `feeling dominant` `hope` `sexual frustration`
`chuckling` `feeling downhearted` `hopelessness` `sexual gratification`
`cold sweats` `feeling dreamy` `horror` `sexual tension`
`comfort` `feeling dreary` `hostility` `shame`
`compassion` `feeling dull` `humiliation` `sheepishness`
`concern` `feeling dumb` `humor` `shock`
`confidence` `feeling empty` `hunger` `shuddering`
`confusion` `feeling engaged` `hysterical laughter` `shyness`
`contempt` `feeling engrossed` `ill temper` `skepticism`
`contentment` `feeling excluded` `impatience` `sleepiness`
`courage` `feeling fidgety` `indecision` `sluggishness`
`crankiness` `feeling flirtatious` `indifference` `smiling`
`craving` `feeling flustered` `indignation` `smugness`
`cringing` `feeling foggy` `inferiority` `snarkiness`
`crying` `feeling free` `inspiration` `social anxiety`
`crying tears of joy` `feeling grossed out` `interest` `solidarity`
`curiosity` `feeling horny` `intimacy` `sorrow`
`dark humor` `feeling hurt` `jealousy` `strain`
`daze` `feeling important` `joking` `stress`
`dedication` `feeling impressed` `joy` `stupor`
`deep concentration` `feeling inquisitive` `lack of focus` `suffering`
`deep contemplation` `feeling insecure` `laughter` `sulkiness`
`deep focus` `feeling insulted` `loathing` `sullenness`
`defeat` `feeling intimidated` `loneliness` `superiority`
`defensiveness` `feeling intrigued` `longing` `surprise`
`dejection` `feeling invincible` `love` `suspicion`
`delight` `feeling irritable` `low spirits` `sympathy`
`demoralization` `feeling jaded` `loyalty` `tenderness`
`depression` `feeling lazy` `lust` `terror`
`desire` `feeling let down` `marveling` `thirst`
`despair` `feeling lively` `maternal love` `thoughtfulness`
`despondency` `feeling loved` `melancholy` `thrill`
`detachment` `feeling offended` `mild joy` `tiredness`
`detestation` `feeling oppressed` `misery` `torment`
`devotion` `feeling out of place` `mistrust` `torture`
`disagreement` `feeling overjoyed` `moral repugnance` `tranquility`
`disappointment` `feeling overwhelmed` `mystification` `transcendence`
`disapproval` `feeling perplexed` `nausea` `trauma`
`disbelief` `feeling petrified` `nervous breakdown` `treasuring the moment`
`discomfort` `feeling pissed off` `nervous laughter` `trembling with fear`
`discouragement` `feeling powerful` `nervousness` `turmoil`
`disdain` `feeling pumped` `neutral` `uncertainty`
`disenchantment` `feeling refreshed` `nirvana` `unease`
`disgrace` `feeling satiated` `nonchalance` `unhappiness`
`disgust` `feeling scared` `nostalgia` `unspeakable horror`
`disillusionment` `feeling silly` `not feeling in control` `urge to escape`
`disinterest` `feeling small` `outrage` `urge to explore`
`dislike` `feeling smart` `pain` `utter disbelief`
`dismay` `feeling sorry` `panic` `vengefulness`
`displeasure` `feeling startled` `panic attack` `vindication`
`dissatisfaction` `feeling stimulated` `paranoia` `vulnerability`
`distaste` `feeling strong` `passion` `warmth`
`distraction` `feeling stunned` `patriotism` `weakness`
`distress` `feeling taken aback` `peacefulness` `weariness`
`distrust` `feeling threatened` `pessimism` `wonder`
`divine inspiration` `feeling timid` `physical pain` `worry`
`dizziness` `feeling torn` `physical pleasure` `wrath`
`doubt` `feeling trapped` `pity` `yearning`
`dread` `feeling unready` `playfulness` `zeal`
`drowsiness` `feeling unsafe` `pleasant surprise`
## Voice attributes Qualities of the voice or the recording: a manner of speaking, a vocal timbre, or a background sound. 190 names.
`abrasive` `dynamic` `metallic` `shy`
`airy` `eager` `methodical` `silky`
`alien` `echoey` `monotone` `silly`
`angelic` `echoing` `monstrous` `singing`
`animal sound` `elderly` `muffled` `slick`
`animal-sounding` `eloquent` `multiple speakers` `slow`
`animated` `emotive` `mumbling` `slurred`
`argumentative` `energetic` `musical` `smoker's voice`
`articulate` `enthusiastic` `muted` `smoky`
`artificial` `enunciating` `narrative` `smooth`
`asmr` `expressive` `nasal` `smug`
`assertive` `faint` `nervous` `soft`
`authoritative` `fast` `noisy` `soft-spoken`
`babyish` `fervent` `non-human` `soothing`
`background music` `fiery` `nuanced` `sparkling`
`background noise` `flat` `old radio` `speedy`
`bad acting` `fluent` `operatic` `spirited`
`booming` `formal` `passionate` `squeaky`
`brassy` `fuzzy` `peppy` `stuttering`
`breathy` `garbled` `performative` `sultry`
`bright` `gentle` `piercing` `suppressed`
`bubbly` `goofy` `playful` `synthesized`
`calm` `grating` `poetic` `theatrical`
`caricatured` `gravelly` `poised` `thin`
`cartoony` `gritty` `polished` `throaty`
`charismatic` `gruff` `polite` `thunderous`
`cheerful` `harmonious` `powerful` `timid`
`child-directed` `harsh` `projecting` `tinny`
`clear` `hesitant` `rapping` `tired`
`cold` `high-pitched` `raspy` `twangy`
`comedic` `hoarse` `reedy` `unintelligible`
`commanding` `honeyed` `repetitive` `upbeat`
`commentating` `honky` `reserved` `urgent`
`composed` `humming` `resounding` `velvety`
`confident` `hushed` `reverberating` `vibrant`
`coy` `husky` `rich` `villainous`
`crackling` `in a crowd` `robotic` `vulnerable`
`creaky` `inanimate object` `rugged` `wailing`
`cute` `inaudible` `rushed` `warm`
`deep` `instrumental` `scratchy` `weathered`
`digital` `lifeless` `screaming` `whimsical`
`distorted` `lilting` `screeching` `whiny`
`dramatic` `lively` `seductive` `whispering`
`drawled` `low-pitched` `self-assured` `worn`
`droning` `lush` `sensitive` `yelling`
`drowned out` `mechanical` `shouting` `zealous`
`drunk` `mellow` `shrieking`
`dull` `melodic` `shrill`
## Next steps #### [Audio upload](/expression-measurement/docs/audio/upload) Upload an audio file and receive measurements for every utterance. #### [Audio realtime](/expression-measurement/docs/audio/realtime) When measurements are produced and what window of speech each covers.