solution / 07 · speech and audio datasets

Speech and audio datasets. Every voice, on the record.

Speech and audio datasets recorded by people who agreed to train AI with their voice, and licensed by the creators who own the music. Scripted, conversational, and studio speech, verified transcripts, and sound events, each file fingerprinted, origin-checked, and listed on a signed receipt.

Consent per recording Second-listener transcripts Lossless delivery Pilot batch first
Hero image · 840 × 1050
first reply
1day
a speech data lead, not an autoresponder
fingerprints per file
2
cryptographic hash plus acoustic fingerprint
listeners per transcript
2
transcriber, then an independent reviewer
audio delivered lossless
100%
at the sample rate and bit depth you specify

What are speech and audio datasets?

Speech and audio datasets are collections of recordings paired with whatever a model needs to learn from them: a time-aligned transcript for speech recognition, clean studio audio with matching text for text-to-speech, speaker turns for conversation models, and tags for music, ambience, and sound events for audio-language models. The recordings have to resemble production conditions: accents, ages, cheap microphones, noisy rooms, and people talking over each other.

They also have to be yours to use. A voice identifies a person as surely as a face does, and a piece of music belongs to whoever wrote and performed it. Scraped audio gives you neither the consent nor the licence, and no answer when a regulator or a speaker asks where a recording came from.

eeko's data practice records speech with people who signed up to do exactly that, through our paid AI-training programs and the voice professionals in the eeko expert network, and licenses music and sound from the creators who made it. Consent and licence terms are bound to each file, not to one bulk contract. It is the standard we hold ourselves to when we deploy a voice-driven enterprise AI receptionist for a client.

Speech datasets for AI, six ways.

Each collection runs to a written specification: speech style, prompt set, recording conditions, sample rate, target speaker distribution, and transcript conventions, agreed before the first session.

01 / scriptedCORE
Scripted speech
Read prompts recorded to your script and speaker distribution, on the devices and in the rooms your product will hear. Good for ASR coverage of names, numbers, commands, and domain vocabulary.
02 / conversationalCORE
Conversational speech
Unscripted two-party and multi-party conversations on topics you set, with speaker turns and overlaps marked. The disfluencies stay in, because production speech has them.
03 / studioTTS
Voice talent sessions
Professional voice actors recorded in treated rooms for text-to-speech and expressive speech, with direction notes, emotion labels where specified, and exclusive terms available for a dedicated voice.
04 / transcriptsCORE
Verified transcripts
Timestamped transcription to agreed conventions, produced by trained transcribers and checked by a second listener who did not write the first pass. Word, utterance, or segment alignment as your spec requires.
05 / non-speechCORE
Music, ambience, and sound events
Audio licensed from consenting musicians, field recordists, and sound designers, tagged to your label set by people who can tell a viola from a violin and a diesel from a petrol engine.
06 / metadataCONSENT
Speaker and condition metadata
Language, dialect, age band, device, and room for every recording, restricted to the attributes the speaker opted to share. Never a name, never a location, always a consent reference.
Field recording image · 2100 × 900
Production conditions on purpose: cafes, cars, kitchens, and call-center headsets, because that is where the model will listen.

Transcribed audio datasets without label noise.

Most transcript error is not mishearing. It is five transcribers handling a stutter five ways.

Transcript review image · 1200 × 900
Second pass by a listener who did not write the first. Disagreements are settled by the convention, not by seniority.

Agreed before the first file, enforced on every file

  • Disfluencies — whether "um", restarts, and repetitions are kept verbatim, normalized, or tagged, decided once in the spec.
  • Overlaps and turns — how simultaneous speech is segmented and attributed, so conversation models learn real turn-taking.
  • Non-speech events — laughter, coughs, music beds, and door slams tagged from a fixed vocabulary.
  • Timestamps — precision and alignment level, from utterance boundaries to word-level forced alignment.
  • Numbers, names, and code-switching — spelled-out versus numeral forms, proper-noun casing, and language tags within an utterance.
  • Review share — the fraction of files that get a full second listen, with disagreement rates reported to you each batch.

Linguists and phoneticians from the eeko linguistics pool write the conventions for new languages and adjudicate the hard cases.

Real voices, provably.

A speech set is only as honest as its worst file. Every recording is checked for origin and duplication before acceptance.

Acoustic fingerprint image · 800 × 1000
Fingerprint — the same clip at a new bitrate is still the same clip.
Delivery receipt image · 800 × 1000
Receipt — every file by ID and hash, with its consent and licence reference.

Hash and acoustic fingerprint

Each file gets a cryptographic hash and an acoustic fingerprint at intake, both compared against everything already registered. A re-upload, a re-encode, or a trimmed copy of a registered recording is caught before it inflates your hour count.

Origin and generator checks

Origin is recorded as human-made, AI-assisted, or AI-generated. Metadata is read for generator signatures and C2PA records, and commissioned sessions are tied to a verified speaker. Synthetic audio never passes as human speech by accident.

Signed provenance and receipt

Every recording carries a signed provenance record with its hash, consent reference, licence, and independent timestamp, chained into an audit trail. Your signed receipt lists each file. Full method on our verified human data page.

From a speaker distribution to a sealed delivery.

Fixed scope, fixed price per recorded hour or per item, set after the pilot batch. A real person replies inside one business day.

STEP 01
Brief
Languages, speech style, conditions, hours, and what the model must do. We reply with questions and a feasibility read.
STEP 02
Specification
Prompt set or topics, speaker targets, sample rate and bit depth, transcript conventions, review share, and consent terms, written and versioned.
STEP 03
Pilot batch
A few hours recorded and transcribed end to end. You run it through your pipeline, we adjust, and the production price is set.
STEP 04
Production and delivery
Batches with coverage reports against the targets, lossless audio in your format, and a signed receipt listing every file.

Speech and audio dataset questions.

What is a speech and audio dataset for AI training?

A speech and audio dataset is a collection of recordings paired with the information a model needs to learn from them: transcripts with timestamps for speech recognition, clean studio audio with text for text-to-speech, speaker turns for conversation models, and tags for music, ambience, and sound events. A usable one also carries a licence and a consent record for every file, because a voice identifies a person and a song belongs to someone.

How much does speech data cost per hour?

Pricing is per recorded hour or per item, quoted once scoping is done, and depends on the language and how easy its speakers are to reach, scripted versus conversational speech, recording conditions, transcription depth, review share, studio rates for professional voice talent, and exclusivity. Exclusive TTS studio voices sit at the top of the range; read prompts in a common language at the bottom. A pilot batch sets the production price.

Is it legal to train AI on recorded voices?

It is when the speaker agreed to that use, which is the basis of this service. Every speaker and voice professional in our network accepts AI-training use and the licence terms before a session, and that agreement is bound to each file they produce. Metadata is limited to what they chose to share. A recording with no consent on file is never offered. The terms travel with the delivery, so counsel can read them per recording.

Which languages and accents can you record?

Coverage follows who is in the eeko speaker network for a given language, and it grows through commissioned collection when a target is missing. The specification sets distributions for languages, dialects, age bands, and recording conditions, and we report actual coverage against them while production runs. For less widely spoken languages we confirm speaker availability before quoting rather than promising a distribution we cannot fill.

What format are speech datasets delivered in?

Audio ships lossless at the sample rate and bit depth your specification names. Transcripts, alignments, speaker turns, and metadata ship in JSON Lines, CSV, or Parquet; bigger sets go out as WebDataset shards, described by Croissant metadata. Timestamp precision, disfluency handling, and non-speech tags all follow the scoping conventions, so your pipeline does not meet a surprise in the first shard.

How do you keep synthetic voices out of a real-speech dataset?

Three ways. Each file's origin is recorded at intake as human-made, AI-assisted, or AI-generated, and its metadata is read for generator signatures and C2PA records. Commissioned recordings happen in sessions tied to a verified speaker. And an acoustic fingerprint is compared against everything already registered, which also catches a clip re-encoded at another bitrate. If your spec excludes synthetic or processed audio, those files are held back.

Tell us what your model needs to hear.

Languages, conditions, hours, and the job the model has to do. A speech data lead replies inside one business day with a feasibility read and a pilot plan. No deck. A ranked list of what to record first.

Experienced within

  • SOC 2 Type II
  • ISO 27001
  • HIPAA
  • HITRUST r2
  • ISO 27701
  • PCI DSS
  • NIST CSF 2.0
  • CMMC
  • FedRAMP
  • GDPR

Markets served.

As an enterprise AI agency, eeko systems delivers production AI systems remote-first across the United States and internationally — including these markets:

New York City, New York (NY)

Los Angeles, California (CA)

Chicago, Illinois (IL)

Houston, Texas (TX)

Phoenix, Arizona (AZ)

Philadelphia, Pennsylvania (PA)

San Antonio, Texas (TX)

San Diego, California (CA)

Dallas, Texas (TX)

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Jacksonville, Florida (FL)

Fort Worth, Texas (TX)

Columbus, Ohio (OH)

Charlotte, North Carolina (NC)

Indianapolis, Indiana (IN)

San Francisco, California (CA)

Seattle, Washington (WA)

Denver, Colorado (CO)

Washington, District of Columbia (DC)

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El Paso, Texas (TX)

Nashville, Tennessee (TN)

Detroit, Michigan (MI)

Oklahoma City, Oklahoma (OK)

Portland, Oregon (OR)

Las Vegas, Nevada (NV)

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Milwaukee, Wisconsin (WI)

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Fresno, California (CA)

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