Audio and speech · Call centre recordings · Updated 30 Oct 2026
Who buys call centre recordings for AI training, and what do they pay?
AIData.Broker represents the companies and people that hold call centre recordings when they sell to AI labs: we value what they hold against public prices, describe it without their name to every buyer that takes it at the same time and help negotiate the terms. Our fee is 12% of the first $250,000 a sale pays, and nothing if no sale closes.
Recorded customer calls with their transcripts, outcomes and agents' notes. Voice agents learn from them how real customers speak and how a conversation is resolved.
- No data upload
- About two minutes
- No email needed
- Prices on record
- 30
offered to holders, asking prices off the shelf
- Who holds it
- Call centres and BPOs, Companies with in-house support lines, Collections and sales teams
- Who has paid, offered or listed
- Mercor, Linguistic Data Consortium, Appen, WiserBrand, Datarade
The short answer · figures from the market's records, last reviewed 30 Oct 2026
Who buys call centre recordings for AI training, and what do they pay?
Voice-agent and speech-model companies. Mercor's listing for call centres and BPOs asks for an archive of recorded customer conversations, ideally in more than one language, and prices one by its hours and languages; real, redacted US support calls with transcripts are listed at $24,500 per dataset of 1,000 hours on Opendatabay; and research catalogues sell older telephone conversations, such as Switchboard at $3,000 for about 260 hours from the Linguistic Data Consortium. Recordings made for a client are the client's to license too, and what callers were told decides the rest.
What buyers have paid, offered or asked for call centre recordings
The whole price boardEvery price in the market's records about call centre recordings, each with its source and the day it was read. Open a row for the source's own words.
30 public prices across all kinds of data
Call Center or BPO: its records licensed through Mercor, on Mercor's own listing for this kind of company
License recorded customer conversations, ideally in more than one language. For 50–5,000 agents, India, France and francophone markets, Latin America, U.S. Hispanic markets, Japan; it asks for an archive of recorded calls. Mercor: "Depends on hours and languages". A referrer earns $30k plus $10k for signing fast (to the company too). 11 companies referred so far. Its rules decide which companies it prices (buyer-listings.ts).
Company recordsOffered to holdersOct 2026The payer's own page
$20K to $250K
per company (the buyer's published range for one kind of company)
$70.7K per company
Gulf Arabic Conversational Telephone Speech (collected by Appen in 2004): about 2,800 minutes of spontaneous colloquial Gulf Arabic telephone conversations from 975 speakers, 8 kHz
LDC's one-time non-member licence fee, shown under View Fees; LDC licences to non-members exclude commercial use, which needs a for-profit membership. The reduced-licence fee is $400.00. The only Gulf Arabic speech in LDC's catalogue; transcripts are sold separately (LDC2006T15). Telephone audio recorded in 2004, so it says little about what fresh Gulf conversation sells for.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
LDC catalog, Gulf Arabic Conversational Telephone Speech (LDC2006S43)
$800
per corpus of about 2,800 minutes (46.7 hours)
$17 per hour of audio
Iraqi Arabic Conversational Telephone Speech (collected by Appen in 2003 and 2004): about 3,000 minutes of spontaneous colloquial Iraqi Arabic telephone conversations from 474 speakers, 8 kHz
LDC's one-time non-member licence fee, shown under View Fees; LDC licences to non-members exclude commercial use, which needs a for-profit membership. The reduced-licence fee is $200.00. Transcripts are sold separately (LDC2006T16). The cheapest Arabic dialect speech per hour in LDC's catalogue.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
LDC catalog, Iraqi Arabic Conversational Telephone Speech (LDC2006S45)
$400
per corpus of about 3,000 minutes (50 hours)
$8.00 per hour of audio
IWSLT 2022-2023 Shared Task set: 210 hours of Tunisian Arabic conversational telephone speech (1,188 two-channel conversations recorded in Tunis 2016-2017 with informed consent), transcripts and English translations of 175 hours
LDC's one-time non-member licence fee, shown under View Fees; LDC licences to non-members exclude commercial use, which needs a for-profit membership. The reduced-licence fee is $1,250.00. Released 2025, so it is the freshest dialect conversation LDC sells; the price includes transcripts and English translations, which makes the per-hour figure a floor for transcribed dialect speech at research rates.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
LDC catalog, IWSLT 2022-2023 Shared Task Training, Development and Test Set (LDC2025S05)
$2,500
per corpus of 210 hours
$12 per hour of audio
Levantine Arabic Conversational Telephone Speech (collected and transcribed by Appen in 2004): 985 conversation sides from 982 speakers, 5 to 6 minutes a side
LDC's one-time non-member licence fee, shown under View Fees; LDC licences to non-members exclude commercial use, which needs a for-profit membership. The reduced-licence fee is $200.00. The page gives sides and the average length of a side but not total hours, so no per-hour figure is derived (two sides can share one recording). Sister corpus to the Gulf and Iraqi Appen sets at $800 and $400.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
LDC catalog, Levantine Arabic Conversational Telephone Speech (LDC2007S01)
$400
per corpus (985 conversation sides; total hours not stated)
Multi-Language Conversational Telephone Speech 2011, Arabic Group: about 117 hours of telephone calls in colloquial Iraqi, Levantine and Maghrebi Arabic
LDC's one-time non-member licence fee, shown under View Fees; LDC licences to non-members exclude commercial use, which needs a for-profit membership. The reduced-licence fee is $1,250.00. Callers phoned acquaintances in their own social network for up to 15 minutes each; no transcripts, and the page does not split the hours by dialect. Collected for language identification (NIST LRE 2011).
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
LDC catalog, Multi-Language Conversational Telephone Speech 2011 -- Arabic Group (LDC2019S02)
$2,500
per corpus of about 117 hours
$21 per hour of audio
IARPA Babel Vietnamese Language Pack IARPA-babel107b-v0.7 (LDC2017S01): about 201 hours of Vietnamese conversational and scripted telephone speech with transcripts, collected by Appen in 2012
LDC's non-member fee, shown under View Fees (the reduced-licence fee is also $25.00). The Babel packs were paid for by the US government and are priced near zero; non-member LDC licences exclude commercial use, so this is a research price, not a market price for Vietnamese speech.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
LDC catalog, IARPA Babel Vietnamese Language Pack IARPA-babel107b-v0.7 (LDC2017S01)
$25
per corpus of about 201 hours
$0.12 per hour of audio
Real customer-service calls in English and Hindi for chatbot and voicebot training (WiserBrand), usage-based licence
Same per-hour price as the seller's US English calls: no premium for Hindi or code-switched speech at this seller. Withdrawn: on 30 Oct 2026 the listing's address redirected to the provider's Datarade profile (PissedConsumer), which lists no WiserBrand product.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
Datarade, WiserBrand Chatbot Conversation Dataset (English and Hindi)
$25
per hour of audio (usage-based licence)
Danish SpeechDat(II) FDB-4000: 242 hours of fixed-network telephone speech from 4,000 speakers (ELRA catalogue ELRA-S0073)
ELRA's non-member price for a company under the commercial-use (VAR) licence. Fixed-network telephone speech from 4,000 speakers. A non-commercial-use licence is EUR 48,000 for an academic and EUR 56,000 for a company.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
$62.8K
per corpus of 242 hours
Published as 56000.00 € (non-member, commercial use)
$259 per hour of audio
Dutch Polyphone Database: 335 hours of Dutch and Flemish telephone speech (ELRA catalogue ELRA-S0010)
ELRA's non-member price for a company under the commercial-use (VAR) licence. Telephone speech. A non-commercial-use licence is EUR 20,000 for an academic and EUR 35,000 for a company.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
$39.2K
per corpus of 335 hours
Published as 35000.00 € (non-member, commercial use)
$117 per hour of audio
Greek SpeechDat(II) FDB-5000: 422 hours of fixed-network telephone speech from 5,000 speakers (ELRA catalogue ELRA-S0118)
ELRA's non-member price for a company under the commercial-use (VAR) licence. Telephone speech. A non-commercial-use licence is EUR 60,000 for an academic and EUR 70,000 for a company.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
$78.4K
per corpus of 422 hours
Published as 70000.00 € (non-member, commercial use)
$186 per hour of audio
LILA Korean: 81.16 hours of mobile-network telephone speech from 1,000 speakers (ELRA catalogue ELRA-S0295)
ELRA's non-member price for a company under the commercial-use (VAR) licence. Mobile telephone speech in chosen acoustic conditions. A non-commercial-use licence is EUR 46,405 for an academic and EUR 51,875 for a company.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
$58.1K
per corpus of 81.16 hours
Published as 51875.00 € (non-member, commercial use)
$716 per hour of audio
Castilian Spanish SpeechDat(II) FDB-4000: 246.67 hours of fixed-network telephone speech from 4,000 speakers (ELRA catalogue ELRA-S0102)
ELRA's non-member price for a company under the commercial-use (VAR) licence. Telephone speech. A non-commercial-use licence is EUR 12,500 for an academic and EUR 19,500 for a company.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
$21.9K
per corpus of 246.67 hours
Published as 19500.00 € (non-member, commercial use)
$89 per hour of audio
Swiss-German SpeechDat(II) FDB-2000: 110 hours of fixed-network telephone speech from 2,000 speakers (ELRA catalogue ELRA-S0105)
ELRA's non-member price for a company under the commercial-use (VAR) licence. A dialect with few corpora. A non-commercial-use licence is EUR 26,000 for an academic and EUR 38,000 for a company.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
ELRA catalogue, Swiss-German SpeechDat(II) FDB-2000 (ELRA-S0105)
$42.6K
per corpus of 110 hours
Published as 38000.00 € (non-member, commercial use)
$387 per hour of audio
Welsh SpeechDat(II) FDB-2000: 170 hours of Welsh telephone speech (ELRA catalogue ELRA-S0075)
ELRA's non-member price for a company under the commercial-use (VAR) licence. A minority European language. A non-commercial-use licence is EUR 11,000 for an academic and EUR 18,000 for a company.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
$20.2K
per corpus of 170 hours
Published as 18000.00 € (non-member, commercial use)
$119 per hour of audio
AIDA Ukrainian Broadcast and Telephone Speech: about 156 hours with 1.2 million words of transcripts
LDC's one-time non-member licence fee, shown under View Fees; LDC licences to non-members exclude commercial use, which needs a for-profit membership. The reduced-licence fee is $1,000.00.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
LDC catalog, AIDA Ukrainian Broadcast and Telephone Speech Audio and Transcripts (LDC2023S01)
$2,000
per corpus of about 156 hours
$13 per hour of audio
Call My Net 1: 364 hours of conversational telephone speech in Tagalog, Cebuano, Cantonese and Mandarin
LDC's one-time non-member licence fee, shown under View Fees; LDC licences to non-members exclude commercial use, which needs a for-profit membership. The reduced-licence fee is $1,250.00.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
$2,500
per corpus of about 364 hours
$6.87 per hour of audio
Fisher English Training Speech Part 1: 984 hours of English conversational telephone speech
LDC's one-time non-member licence fee, shown under View Fees; LDC licences to non-members exclude commercial use, which needs a for-profit membership. The reduced-licence fee is $3,500.00.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
LDC catalog, Fisher English Training Speech Part 1 Speech (LDC2004S13)
$7,000
per corpus of about 984 hours
$7.11 per hour of audio
Fisher Levantine Arabic Conversational Telephone Speech: 45 hours (279 calls)
LDC's one-time non-member licence fee, shown under View Fees; LDC licences to non-members exclude commercial use, which needs a for-profit membership. The reduced-licence fee is $500.00.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
LDC catalog, Fisher Levantine Arabic Conversational Telephone Speech (LDC2007S02)
$1,000
per corpus of about 45 hours
$22 per hour of audio
Fisher Spanish Speech: roughly 163 hours of Spanish telephone speech from 136 speakers
LDC's one-time non-member licence fee, shown under View Fees; LDC licences to non-members exclude commercial use, which needs a for-profit membership. The reduced-licence fee is $1,250.00.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
$2,500
per corpus of about 163 hours
$15 per hour of audio
HKUST Mandarin Telephone Speech Part 1: about 149 hours of Mandarin conversational telephone speech
LDC's one-time non-member licence fee, shown under View Fees; LDC licences to non-members exclude commercial use, which needs a for-profit membership. The reduced-licence fee is $1,500.00.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
LDC catalog, HKUST Mandarin Telephone Speech, Part 1 (LDC2005S15)
$3,000
per corpus of about 149 hours
$20 per hour of audio
IARPA Babel Zulu Language Pack: about 211 hours of Zulu conversational and scripted telephone speech
LDC's one-time non-member licence fee, shown under View Fees; LDC licences to non-members exclude commercial use, which needs a for-profit membership. The reduced-licence fee is $25.00.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
LDC catalog, IARPA Babel Zulu Language Pack IARPA-babel206b-v0.1e (LDC2017S19)
$25
per corpus of about 211 hours
$0.12 per hour of audio
MATERIAL Somali-English Language Pack: about 80 hours of Somali telephone speech with transcripts and translations
LDC's one-time non-member licence fee, shown under View Fees; LDC licences to non-members exclude commercial use, which needs a for-profit membership. The reduced-licence fee is $125.00.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
LDC catalog, MATERIAL Somali-English Language Pack (LDC2024S10)
$250
per corpus of about 80 hours
$3.12 per hour of audio
MATERIAL Swahili-English Language Pack: about 112 hours of Swahili telephone speech with transcripts and translations
LDC's one-time non-member licence fee, shown under View Fees; LDC licences to non-members exclude commercial use, which needs a for-profit membership.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
LDC catalog, MATERIAL Swahili-English Language Pack (LDC2026S01)
$250
per corpus of about 112 hours
$2.23 per hour of audio
Mixer 6 CHiME 8 Transcribed Calls and Interviews: 80 hours of English interviews and telephone speech with transcripts
LDC's one-time non-member licence fee, shown under View Fees; LDC licences to non-members exclude commercial use, which needs a for-profit membership. The reduced-licence fee is $1,500.00.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
LDC catalog, Mixer 6 - CHiME 8 Transcribed Calls and Interviews (LDC2025S07)
$3,000
per corpus of about 80 hours
$38 per hour of audio
Multi-Language Conversational Telephone Speech 2011, South Asian: about 118 hours of Bengali, Hindi, Punjabi, Tamil and Urdu telephone speech
LDC's one-time non-member licence fee, shown under View Fees; LDC licences to non-members exclude commercial use, which needs a for-profit membership. The reduced-licence fee is $1,250.00.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
LDC catalog, Multi-Language Conversational Telephone Speech 2011 -- South Asian (LDC2017S14)
$2,500
per corpus of about 118 hours
$21 per hour of audio
REMIX Telephone Collection: 320 hours of English conversational telephone speech from 358 speakers
LDC's one-time non-member licence fee, shown under View Fees; LDC licences to non-members exclude commercial use, which needs a for-profit membership. The reduced-licence fee is $1,250.00.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
$2,500
per corpus of about 320 hours
$7.81 per hour of audio
Switchboard-1 Release 2: about 260 hours of US English conversational telephone speech (543 speakers)
LDC's one-time non-member licence fee, shown under View Fees; LDC licences to non-members exclude commercial use, which needs a for-profit membership. The reduced-licence fee is $1,500.00.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
$3,000
per corpus of about 260 hours
$12 per hour of audio
US English real customer-service calls, dual-channel, with verbatim transcripts, 1,000 hours (PissedConsumer on Opendatabay)
Asking price for a 1,000-hour package of real (not staged) PII-redacted support calls; larger volumes are quoted on request. Listed 2026-07-30.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
Opendatabay marketplace, Audio Data: English (US) Conversational Speech Audio Dataset
$24.5K
per dataset of 1,000 hours
$25 per hour of audio
Hindi real customer-service calls with Hindi-English code-switching, dual-channel, with verbatim transcripts, 1,000 hours (PissedConsumer on Opendatabay)
Same seller and same price as its US English package, so this seller does not charge a language premium for Hindi. Listed 2026-07-30.
Audio and speechAsking prices off the shelfOct 2026A catalogue or marketplace listing
Opendatabay marketplace, Audio Data: Hindi Conversational Speech Audio Dataset
$24.5K
per dataset of 1,000 hours
$25 per hour of audio
Where this data comes from, and who lists it
The whole supply map2,666,000
The US had 2,666,000 customer service representative jobs in 2025, and BLS projects a 5% decline for 2025 to 2035.
Reaches buyers: Mostly not reaching buyers; recorded calls held by enterprises and BPOs
14+ billion call minutes recorded annually
Five9, one contact-centre platform, says 14+ billion call minutes are recorded on it each year for its 4,000+ customers.
Reaches buyers: Not reaching AI buyers: recordings belong to the call centres' customers and are held under processor terms
- Separate tracks for caller and agent
- Transcripts with each call's outcome
- Several languages and accents
- Years of calls across many products
Recordings made for a client belong to that client as much as to the centre, so each client contract decides what may be licensed. What callers were told when the call was recorded decides the rest, and names, numbers and card details are removed first.
Who has bought, offered or listed call centre recordings
Mercor
Appen
Datarade
ELRA
Opendatabay
PissedConsumerBuyers that take audio, and what each publishes
9 buyers taking audio and speech, largest published figure first
Hold call centre recordings? A valuation takes about two minutes: it says what buyers pay and whether we would run the sale. Prices last read 30 Oct 2026.
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