dialogue-audio

$28

Speaker Tags

Dia TTS uses [S1] and [S2] to distinguish two speakers.

Tag

Role

Voice

[S1]

Speaker 1

Automatically assigned voice A

[S2]

Speaker 2

Automatically assigned voice B

Rules:

• Always start each speaker turn with the tag

• Tags must be uppercase: [S1] not [s1]

• Maximum 2 speakers per generation

• Each speaker maintains consistent voice within a session

Emotion & Expression Control

Dia TTS interprets punctuation and non-speech cues for emotional delivery.

Punctuation Effects

Punctuation

Effect

Example

.

Neutral, declarative, medium pause

"This is important."

!

Emphasis, excitement, energy

"This is amazing!"

?

Rising intonation, questioning

"Are you sure about that?"

...

Hesitation, trailing off, long pause

"I thought it would work... but it didn't."

,

Short breath pause

"First, we analyze. Then, we act."

— or --

Interruption or pivot

"I was going to say — never mind."

Non-Speech Sounds

Dia TTS supports parenthetical sound descriptions:

(laughs)      — laughter

(sighs)       — exasperation or relief

(clears throat) — attention-getting pause

(whispers)    — softer delivery

(gasps)       — surprise

Examples with Emotion

# Excited conversation

belt app run falai/dia-tts --input '{

  "prompt": "[S1] Guess what happened today! [S2] What? Tell me! [S1] We hit ten thousand users! [S2] (gasps) No way! That is incredible! [S1] I know... I still cannot believe it."

}'

# Serious/thoughtful dialogue

belt app run falai/dia-tts --input '{

  "prompt": "[S1] We need to talk about the timeline. [S2] (sighs) I know. It is tight. [S1] Can we cut anything from the scope? [S2] Maybe... but it would mean dropping the analytics dashboard. [S1] That is a tough trade-off."

}'

# Teaching/explaining

belt app run falai/dia-tts --input '{

  "prompt": "[S1] So how does it actually work? [S2] Great question. Think of it like a pipeline. Data comes in on one end, gets processed in the middle, and comes out transformed on the other side. [S1] Like an assembly line? [S2] Exactly! Each step adds something."

}'

Pacing Control

Pause Hierarchy

Technique

Pause Length

Use For

Comma ,

~0.3 seconds

Between clauses, list items

Period .

~0.5 seconds

Between sentences

Ellipsis ...

~1.0 seconds

Dramatic pause, thinking, hesitation

New speaker tag

~0.3 seconds

Natural turn-taking gap

Speed Control

• Shorter sentences = faster perceived pace

• Longer sentences with commas = measured, thoughtful pace

• Questions followed by answers = engaging back-and-forth rhythm

# Fast-paced, energetic

belt app run falai/dia-tts --input '{

  "prompt": "[S1] Ready? [S2] Ready. [S1] Let us go! Three features. Five minutes. [S2] Hit it! [S1] Feature one: real-time sync."

}'

# Slow, contemplative

belt app run falai/dia-tts --input '{

  "prompt": "[S1] I have been thinking about this for a while... and I think we need to change direction. [S2] What do you mean? [S1] The market has shifted. What worked last year... is not working now."

}'

Conversation Structure Patterns

Interview Format

belt app run falai/dia-tts --input '{

  "prompt": "[S1] Welcome to the show. Today we have a special guest. Tell us about yourself. [S2] Thanks for having me! I am a product designer, and I have been building tools for creators for about ten years. [S1] What got you started in design? [S2] Honestly? I was terrible at coding but loved making things look good. (laughs) So design was the natural path."

}'

Tutorial / Explainer

belt app run falai/dia-tts --input '{

  "prompt": "[S1] Can you walk me through the setup process? [S2] Sure. Step one, install the CLI. It takes about thirty seconds. [S1] And then? [S2] Step two, run the login command. It will open your browser for authentication. [S1] That sounds simple. [S2] It is! Step three, you are ready to run your first app."

}'

Debate / Discussion

belt app run falai/dia-tts --input '{

  "prompt": "[S1] I think we should go with option A. It is faster to implement. [S2] But option B scales better long-term. [S1] Sure, but we need something shipping this quarter. [S2] Fair point... what if we do A now with a migration path to B? [S1] That could work. Let us prototype it."

}'

Post-Production Tips

Volume Normalization

Both speakers should be at consistent volume. If one is louder:

# Merge with balanced audio

belt app run infsh/video-audio-merger --input '{

  "video": "talking-head.mp4",

  "audio": "dialogue.mp3",

  "audio_volume": 1.0

}'

Adding Background/Music

# Merge dialogue with background music

belt app run infsh/media-merger --input '{

  "media": ["dialogue.mp3", "background-music.mp3"]

}'

Segmenting Long Conversations

For conversations longer than ~30 seconds, generate in segments:

# Segment 1: Introduction

belt app run falai/dia-tts --input '{

  "prompt": "[S1] Welcome back to another episode..."

}'

# Segment 2: Main content

belt app run falai/dia-tts --input '{

  "prompt": "[S1] So let us dive into today s topic..."

}'

# Segment 3: Wrap-up

belt app run falai/dia-tts --input '{

  "prompt": "[S1] Great conversation today..."

}'

# Merge all segments

belt app run infsh/media-merger --input '{

  "media": ["segment1.mp3", "segment2.mp3", "segment3.mp3"]

}'

Script Writing Tips

Do

Don't

Write how people talk

Write how people write

Short sentences (< 15 words)

Long academic sentences

Contractions ("can't", "won't")

Formal ("cannot", "will not")

Natural fillers ("So,", "Well,")

Every sentence perfectly formed

Vary sentence length

All sentences same length

Include reactions ("Exactly!", "Hmm.")

One-sided monologues

Read it aloud before generating

Assume it sounds right

Common Mistakes

Mistake

Problem

Fix

Monologues longer than 3 sentences

Sounds like a lecture, not conversation

Break into exchanges

No emotional variation

Flat, robotic delivery

Use punctuation and non-speech cues

Missing speaker tags

Voices don't alternate

Start every turn with [S1] or [S2]

Formal written language

Sounds unnatural spoken

Use contractions, short sentences

No pauses between topics

Feels rushed

Use ... or scene breaks

All same energy level

Monotonous

Vary between high/low energy moments

Related Skills

# ElevenLabs dialogue (22+ voices, voice direction)

npx skills add inference-sh/skills@elevenlabs-dialogue

npx skills add inference-sh/skills@text-to-speech

npx skills add inference-sh/skills@ai-podcast-creation

npx skills add inference-sh/skills@ai-avatar-video

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