ThirteenLabs Documentation•by aurasqlm

Help Directory & Voice Architecture

Master the 1,000+ emotion injection tags, explore our catalog of 60+ free zero-API-key voice engines, and understand lossless audio exports and vocal extensions.

Vocal Extensions & Emotion Syntax

Insert these acoustic tags anywhere in your text to trigger natural human laughter, crying, coughing, and pauses.

How Emotion Ingestion Works

ThirteenLabs parses bracketed tags like [aha], [haha], [cry], or [pause 0.5s] and translates them into SSML prosody modulations or time-aligned acoustic stems in the audio stream.

[applause]Applause (Stem)

Ambient crowd clapping stemFoley & Stems

[pause 1.0s]Pause (1.0s)

Dramatic full-second silenceAcoustic Timing

[pause 0.5s]Pause (0.5s)

Natural half-second breathing spaceAcoustic Timing

[excited]Excited (High)

Energetic upbeat vocal rhythmEmotional States

[sarcastic]Sarcastic (Dry)

Drawn-out ironic cadenceEmotional States

[nervous]Nervous (Shaky)

Trembling pitch with micro hesitationsEmotional States

[sad]Sad (Melancholic)

Lowered mournful pitch dropEmotional States

[shout]Shout (Urgent)

Projected loud vocal emphasisEmotional States

[sneeze]Sneeze (Natural)

Sudden natural vocal sneezeBreathing & Human

[yawn]Yawn (Drowsy)

Sleepy drawn-out vocal yawnBreathing & Human

[gasp]Gasp (Surprise)

Sudden intake of breathBreathing & Human

[sigh]Sigh (Deep)

Heavy emotional breath releaseBreathing & Human

[throat-clear]Clear Throat

Polite attention-grabbing throat clearBreathing & Human

[cough]Cough (Natural)

Natural dry throat cough soundBreathing & Human

[snicker]Snicker (Sly)

Quiet suppressed amusementReactions

[giggle]Giggle (Playful)

Light amused vocal giggleReactions

[laugh]Laugh (Warm)

Natural genuine laughter chuckleReactions

[cry]Cry (Sorrow)

Authentic tearful weeping and heartbroken inflectionEmotional States

[haha]Haha (Joyful)

Hearty authentic human laughterReactions

[aha]Aha! (Discovery)

Sudden lightbulb inspiration soundReactions

[laugh:subtle]LAUGH · subtle

Natural laughter inflection with breath release (subtle)Reactions

[laugh:chuckle]LAUGH · chuckle

Natural laughter inflection with breath release (chuckle)Reactions

[laugh:giggle]LAUGH · giggle

Natural laughter inflection with breath release (giggle)Reactions

[laugh:snicker]LAUGH · snicker

Natural laughter inflection with breath release (snicker)Reactions

[laugh:cackle]LAUGH · cackle

Natural laughter inflection with breath release (cackle)Reactions

[laugh:belly]LAUGH · belly

Natural laughter inflection with breath release (belly)Reactions

[laugh:burst]LAUGH · burst

Natural laughter inflection with breath release (burst)Reactions

[laugh:dry]LAUGH · dry

Natural laughter inflection with breath release (dry)Reactions

[laugh:nervous]LAUGH · nervous

Natural laughter inflection with breath release (nervous)Reactions

[laugh:ironic]LAUGH · ironic

Natural laughter inflection with breath release (ironic)Reactions

[laugh:warm]LAUGH · warm

Natural laughter inflection with breath release (warm)Reactions

[laugh:boisterous]LAUGH · boisterous

Natural laughter inflection with breath release (boisterous)Reactions

[laugh:suppressed]LAUGH · suppressed

Natural laughter inflection with breath release (suppressed)Reactions

[laugh:hysterical]LAUGH · hysterical

Natural laughter inflection with breath release (hysterical)Reactions

[laugh:roaring]LAUGH · roaring

Natural laughter inflection with breath release (roaring)Reactions

[chuckle:soft]CHUCKLE · soft

Gentle low-register amusement (soft)Reactions

[chuckle:deep]CHUCKLE · deep

Gentle low-register amusement (deep)Reactions

[chuckle:raspy]CHUCKLE · raspy

Gentle low-register amusement (raspy)Reactions

[chuckle:amused]CHUCKLE · amused

Gentle low-register amusement (amused)Reactions

[chuckle:brief]CHUCKLE · brief

Gentle low-register amusement (brief)Reactions

[chuckle:quiet]CHUCKLE · quiet

Gentle low-register amusement (quiet)Reactions

[chuckle:knowing]CHUCKLE · knowing

Gentle low-register amusement (knowing)Reactions

[chuckle:smug]CHUCKLE · smug

Gentle low-register amusement (smug)Reactions

[chuckle:friendly]CHUCKLE · friendly

Gentle low-register amusement (friendly)Reactions

[chuckle:wry]CHUCKLE · wry

Gentle low-register amusement (wry)Reactions

[giggle:playful]GIGGLE · playful

High frequency rhythmic vocal giggle (playful)Reactions

[giggle:childlike]GIGGLE · childlike

High frequency rhythmic vocal giggle (childlike)Reactions

[giggle:nervous]GIGGLE · nervous

High frequency rhythmic vocal giggle (nervous)Reactions

[giggle:stifled]GIGGLE · stifled

High frequency rhythmic vocal giggle (stifled)Reactions

[giggle:high-pitched]GIGGLE · high pitched

High frequency rhythmic vocal giggle (high-pitched)Reactions

[giggle:uncontrollable]GIGGLE · uncontrollable

High frequency rhythmic vocal giggle (uncontrollable)Reactions

[giggle:muffled]GIGGLE · muffled

High frequency rhythmic vocal giggle (muffled)Reactions

[snicker:sly]SNICKER · sly

Suppressed mischievous sound (sly)Reactions

[snicker:sarcastic]SNICKER · sarcastic

Suppressed mischievous sound (sarcastic)Reactions

[snicker:behind-hand]SNICKER · behind hand

Suppressed mischievous sound (behind-hand)Reactions

[snicker:taunting]SNICKER · taunting

Suppressed mischievous sound (taunting)Reactions

[snicker:under-breath]SNICKER · under breath

Suppressed mischievous sound (under-breath)Reactions

[snicker:naughty]SNICKER · naughty

Suppressed mischievous sound (naughty)Reactions

[smirk:vocal]SMIRK · vocal

Audible playful smirking prosody (vocal)Reactions

[smirk:confident]SMIRK · confident

Audible playful smirking prosody (confident)Reactions

[smirk:amused]SMIRK · amused

Audible playful smirking prosody (amused)Reactions

[smirk:teasing]SMIRK · teasing

Audible playful smirking prosody (teasing)Reactions

[smirk:cynical]SMIRK · cynical

Audible playful smirking prosody (cynical)Reactions

[aha:discovery]AHA · discovery

Sudden revelation and pitch rise (discovery)Reactions

[aha:epiphany]AHA · epiphany

Sudden revelation and pitch rise (epiphany)Reactions

[aha:surprise]AHA · surprise

Sudden revelation and pitch rise (surprise)Reactions

[aha:satisfied]AHA · satisfied

Sudden revelation and pitch rise (satisfied)Reactions

[aha:triumphant]AHA · triumphant

Sudden revelation and pitch rise (triumphant)Reactions

[aha:curious]AHA · curious

Sudden revelation and pitch rise (curious)Reactions

[cheer:crowd]CHEER · crowd

Uplifting celebratory vocal inflection (crowd)Reactions

[cheer:jubilant]CHEER · jubilant

Uplifting celebratory vocal inflection (jubilant)Reactions

[cheer:short]CHEER · short

Uplifting celebratory vocal inflection (short)Reactions

[cheer:excited]CHEER · excited

Uplifting celebratory vocal inflection (excited)Reactions

[cheer:stadium]CHEER · stadium

Uplifting celebratory vocal inflection (stadium)Reactions

[cheer:heartfelt]CHEER · heartfelt

Uplifting celebratory vocal inflection (heartfelt)Reactions

[cough:dry]COUGH · dry

Physiological vocal tract clearance (dry)Breathing & Human

[cough:gentle]COUGH · gentle

Physiological vocal tract clearance (gentle)Breathing & Human

[cough:polite]COUGH · polite

Physiological vocal tract clearance (polite)Breathing & Human

[cough:clearing]COUGH · clearing

Physiological vocal tract clearance (clearing)Breathing & Human

[cough:deep]COUGH · deep

Physiological vocal tract clearance (deep)Breathing & Human

[cough:muffled]COUGH · muffled

Physiological vocal tract clearance (muffled)Breathing & Human

[cough:single]COUGH · single

Physiological vocal tract clearance (single)Breathing & Human

[cough:double]COUGH · double

Physiological vocal tract clearance (double)Breathing & Human

[cough:raspy]COUGH · raspy

Physiological vocal tract clearance (raspy)Breathing & Human

[cough:throat]COUGH · throat

Physiological vocal tract clearance (throat)Breathing & Human

[throat-clear:hesitant]THROAT-CLEAR · hesitant

Formal throat clearing before speech (hesitant)Breathing & Human

[throat-clear:authoritative]THROAT-CLEAR · authoritative

Formal throat clearing before speech (authoritative)Breathing & Human

[throat-clear:nervous]THROAT-CLEAR · nervous

Formal throat clearing before speech (nervous)Breathing & Human

[throat-clear:formal]THROAT-CLEAR · formal

Formal throat clearing before speech (formal)Breathing & Human

[throat-clear:brief]THROAT-CLEAR · brief

Formal throat clearing before speech (brief)Breathing & Human

[throat-clear:deliberate]THROAT-CLEAR · deliberate

Formal throat clearing before speech (deliberate)Breathing & Human

[sigh:relieved]SIGH · relieved

Slow exhalation with soft harmonic drop (relieved)Breathing & Human

[sigh:exhausted]SIGH · exhausted

Slow exhalation with soft harmonic drop (exhausted)Breathing & Human

[sigh:melancholy]SIGH · melancholy

Slow exhalation with soft harmonic drop (melancholy)Breathing & Human

[sigh:wistful]SIGH · wistful

Slow exhalation with soft harmonic drop (wistful)Breathing & Human

[sigh:content]SIGH · content

Slow exhalation with soft harmonic drop (content)Breathing & Human

[sigh:deep]SIGH · deep

Slow exhalation with soft harmonic drop (deep)Breathing & Human

[sigh:heavy]SIGH · heavy

Slow exhalation with soft harmonic drop (heavy)Breathing & Human

[sigh:shivering]SIGH · shivering

Slow exhalation with soft harmonic drop (shivering)Breathing & Human

[sigh:romantic]SIGH · romantic

Slow exhalation with soft harmonic drop (romantic)Breathing & Human

Showing 100 of 993 cataloged acoustic extensions.