# OTS Swedish Speech Dataset

> Roughly 500 hours of Swedish speech, prompts and conversations, already recorded and ready to license, with transcripts and metadata for every recording and consent from every speaker for commercial AI training.

Source: https://indecalai.com/datasets/ots/swedish-speech-dataset/
Last updated: 2026-10-27
Publisher: IndecalAI (https://indecalai.com/)

## Key facts

| | |
|---|---|
| Language | Swedish (sv) |
| Hours | Roughly 500, already recorded |
| Content | A mix of scripted prompts and natural conversations |
| Devices | Mobile phones, laptops and studio microphones |
| Environments | Quiet rooms and noisy, everyday settings |
| Transcripts | Included with every recording |
| Metadata | Speaker details (such as gender and age), device and setting for each recording |
| Formats | WAV, OGG and other common formats |
| Consent | Every speaker consented to commercial AI training |
| Licence | Agreed with each customer, in writing |
| Price | Quoted per order |
| Samples | Sample clips and a spec sheet on request |
| Contact | contact@indecalai.com, reply within one business day |

Our OTS Swedish speech dataset is roughly 500 hours of Swedish speech, prompts and conversations, already recorded by Swedish speakers in our 30,000+ network, with consent from every speaker for commercial AI training. License it now and train your Swedish speech recognition model without waiting on a new collection.

- ~500 h of Swedish in stock
- ~35,000 h across the OTS pool
- 100% of speakers consented

## What's in the Swedish speech dataset?

The IndecalAI OTS Swedish speech dataset is roughly 500 hours of Swedish speech, prompts and conversations, recorded by Swedish speakers in our network who all consented to commercial AI training. It's already recorded, so you can license it now instead of waiting on a new collection.

Sweden is a wealthy, digital-first market where people expect services in Swedish, even though many speak English well. Its word melodies and regional accents are why Swedish needs speech data of its own.

Every recording comes with a transcript and metadata about the speaker, the device and the setting, and you can take it as WAV, OGG or another common format. Every order starts with sample clips and a spec sheet, so you can match the data against your model before you agree a licence.

Need more than what's in stock? Swedish speakers from our 30,000+ network record new speech to your brief, and our [Swedish data page](https://indecalai.com/datasets/languages/swedish.html) covers what we collect to order.

### Swedish speech dataset at a glance

- **Hours**: Roughly 500 hours, already recorded
- **Language**: Swedish (Svenska), sv
- **Content**: Speech, prompts and conversations
- **Consent**: Every speaker consented to commercial AI training
- **Speakers**: Swedish speakers from our 30,000+ network
- **Audio and transcripts**: Transcripts and metadata with every recording, in WAV, OGG and more
- **Licence**: Terms agreed with each customer, in writing
- **Price**: Quoted per order
- **Samples**: Swedish sample clips sent in reply to your request
- **Security**: ISO 27001 certified. SOC 2 report available under NDA. GDPR DPAs and HIPAA BAAs on request.

## What comes with every Swedish recording

Every Swedish recording arrives with the details you need to filter, balance and test, in the audio format your pipeline already reads.

| Detail | In the Swedish dataset |
|---|---|
| Speech types | A mix of scripted prompts and natural conversations |
| Recording devices | Mobile phones, laptops and studio microphones |
| Environments | Quiet rooms and noisy, everyday settings |
| Transcripts | Included with every recording |
| Speaker metadata | Speaker details, such as gender and age, for each recording |
| Recording metadata | The device and the setting for each recording |
| Audio formats | WAV, OGG and other common formats |
| Sample rates | Listed for each recording on the spec sheet |

## What roughly 500 hours of Swedish speech looks like

Five hundred hours is easy to say and hard to picture. Played back to back, it's about 21 days of Swedish speech without a break, far more than any team can listen to before buying. That's why every order starts with sample clips and a spec sheet.

Hours here are recorded audio. When you compare quotes, check whether each one counts audio hours or only the parts where someone is talking.

- ~500 hours of Swedish speech
- ~30,000 minutes
- ~1.8M seconds of audio
- ~21 days, played back to back

## Swedish at a glance, for speech teams

The facts that shape a Swedish speech project, from who speaks it to how it's written. Our [Swedish data page](https://indecalai.com/datasets/languages/swedish.html) covers what we collect to order.

- **Status**: Official language. Official in Sweden and Finland, and one of the official languages of the European Union.
- **Where it's spoken**: Sweden and Finland. Spoken across Sweden and by the Swedish-speaking minority in Finland.
- **Script**: Latin alphabet. Written left to right, with å, ä and ö.
- **Family**: Germanic. A North Germanic language, close to Norwegian and Danish.
- **Varieties**: Regional accents. Stockholm, southern, Gothenburg, Norrland and Finland Swedish differ clearly in sounds and melody.
- **Codes**: sv · swe. ISO 639-1 and ISO 639-3 codes. Locales speech APIs often use: sv-SE, sv-FI.

Related languages: [Norwegian](https://indecalai.com/datasets/ots/norwegian-speech-dataset/), [Danish](https://indecalai.com/datasets/ots/danish-speech-dataset/), [Finnish](https://indecalai.com/datasets/ots/finnish-speech-dataset/) and [German](https://indecalai.com/datasets/ots/german-speech-dataset/).

## Swedish speech dataset, voice dataset or speech corpus?

Buyers search for the same data under different names. Here's what each one usually means, and how our Swedish data fits.

- **Swedish speech dataset**: The general term. Recorded Swedish speech with details about each recording, for training and testing speech models. The name this page uses.
- **Swedish voice dataset**: Usually the same thing. Some teams mean voice for text-to-speech or speaker recognition, which needs cleaner audio. Part of our data was recorded in a studio, so ask for those recordings.
- **Swedish audio dataset**: A wider term. It can include music or background sound. Ours is speech audio: Swedish speech, prompts and conversations.
- **Swedish speech corpus**: The research name. A structured collection of recordings and their details. Commercial datasets are corpora too, licensed instead of published.
- **Swedish ASR or speech-to-text dataset**: Speech plus what was said. For training a model that turns Swedish audio into text. Every recording in our Swedish dataset comes with a transcript.
- **Swedish speech recognition data**: Speech plus what was said. For training a model that turns Swedish audio into text. Every recording in our Swedish dataset comes with a transcript.

## What makes Swedish hard for speech recognition

These are the things a Swedish speech model trips on, and what to listen for in any Swedish sample, ours included.

### English words inside Swedish

Swedish speakers use a lot of English at work and online, often with Swedish endings. A model trained only on formal Swedish stumbles on that, so listen for it in a sample.

### Compound words

Swedish joins words into compounds, and splitting them wrongly changes the meaning. Transcripts have to follow the standard way, or the model learns the wrong words.

### Accents across Sweden

Stockholm, Skåne, Gothenburg, Norrland and Finland Swedish carry different sounds and melody. Check that the speaker mix covers the regions your users come from.

### Pitch accent

Swedish uses two word melodies that can tell words apart, like anden (the duck) and anden (the spirit). A model needs real speech to learn them.

## What teams build with a Swedish speech dataset

Common uses for Swedish speech that's already recorded. They show the kind of work, and they aren't client names.

### Swedish speech recognition

Train or fine-tune a Swedish speech-to-text model, or adapt a multilingual model so it handles Swedish well. See: [Transcription](https://indecalai.com/services/transcription.html)

### Voice bots and IVR

Teach a voice bot how Swedish callers actually ask for things, in the words and accents they use. See: [Conversational AI data](https://indecalai.com/services/conversational-ai-data.html)

### Customer service calls

Swedish speech for models that route, transcribe or summarize customer calls about accounts, orders and claims. See: [Speech data](https://indecalai.com/speech-data.html)

### Voice in the car and at home

A Swedish base for in-car assistants and smart devices, before recording commands in the real setting. See: [Data collection](https://indecalai.com/services/data-collection.html)

### Support and speech analytics

Swedish conversations for models that find intent, sentiment or topics in support calls and chats. See: [Annotation and labeling](https://indecalai.com/services/data-annotation.html)

### Testing a Swedish model

Held-back Swedish recordings your model never trained on, to measure word and character error rate before launch. See: [Data and model evaluation](https://indecalai.com/services/model-evaluation.html)

## How many hours of Swedish speech do you need?

It depends on the model you start from and how close your users sound to the training data. These are rough starting points that come up often in speech work. Your own tests should decide.

| Goal | Rough starting point | With our Swedish data |
|---|---|---|
| Test a model you already have | A few hours your model never trained on | A test set cut from stock and kept out of training |
| Fine-tune a multilingual model, such as Whisper or wav2vec 2.0 | Tens to a few hundred hours | Roughly 500 hours in stock covers it |
| Adapt to one domain, like banking calls | A smaller set that sounds like your users | Stock as a base, plus a custom top-up in your domain |
| Train a Swedish model from scratch | Thousands of hours | Stock as a base, plus a larger custom collection |

## Free Swedish speech datasets or a licensed one?

Public corpora such as NST Swedish (via Språkbanken), Mozilla Common Voice and FLEURS have done a lot for Swedish speech research. They cover what their creators chose to record, like read sentences, crowd recordings or broadcast speech, and each comes with its own licence and terms of use. Here's how they compare with a licensed dataset.

| Topic | Public Swedish corpora | Our Swedish speech dataset |
|---|---|---|
| Licence | Set by each corpus, and some limit redistribution or changes | Agreed with you in writing, for what you're building |
| Consent | Covered by each project's own terms | Every speaker consented to commercial AI training |
| What it sounds like | Whatever the project recorded | Speech, prompts and conversations, with sample clips first |
| Who else trains on it | Anyone who downloads it | Set in the licence we agree with you |
| Filling gaps | Up to you | Recorded to your brief by the same network |
| Support | Community forums | A named contact from sample to delivery |

## How to check a Swedish speech sample

Six things to check before you license, and where to look for each. Use it on every vendor you compare.

| Check | What to look for | Where to find it |
|---|---|---|
| Accents | Speakers from the regions your users come from | The speaker mix on the spec sheet, and the clips |
| Everyday speech | The way your users really talk, including any mixing with other languages | Listen to the clips |
| Script | Transcripts in the script and spelling your model should output | The transcript format on the spec sheet |
| Audio | A sample rate and recording setup close to your product | The sample rate on the spec sheet |
| Numbers | Amounts, dates and phone numbers written one consistent way | Transcripts of the clips |
| Rights | Consent that covers commercial AI training, and a licence that fits | Ask for the licence terms before you buy |

## From Swedish sample clips to licensed data

Your named contact runs it from the first question to delivery.

1. **Ask**: Tell us how many Swedish hours you need and what the model is for. You get: A reply within one business day
2. **Sample and spec sheet**: We send Swedish sample clips and the spec sheet in reply. You get: Swedish clips and the spec sheet
3. **Licence and quote**: We agree the licence terms and send a quote for the order. You get: Written licence terms and a quote
4. **Delivery**: The licensed Swedish speech is delivered to you. You get: Licensed Swedish speech with transcripts
5. **[Fill the gaps](https://indecalai.com/services/data-collection.html)**: Accents, devices or domains that are missing get recorded to your brief. You get: New Swedish speech, recorded to your brief

## Swedish speech data terms

The words that come up when you buy or build Swedish speech data. The full [glossary](https://indecalai.com/glossary.html) covers every data type.

- **Pitch accent**: A word melody that can tell two words apart. Swedish and Norwegian use two of them.
- **Compound noun**: A noun made by joining words, written as one word in Swedish.
- **Finland Swedish**: The Swedish spoken by Finland's Swedish-speaking minority, with its own sound.
- **Speaker metadata**: Details recorded about each speaker, such as gender and age, that let you check the speaker mix against your users.
- **OTS dataset**: Short for off-the-shelf dataset: data already collected and ready to license before a buyer asks for it, instead of recorded to one buyer's brief.
- **Word error rate (WER)**: The share of words a speech model gets wrong against a reference transcript. Lower is better.
- **Character error rate (CER)**: The same idea counted in characters, often used alongside WER, since small spelling differences can make WER look worse than the model is.
- **Utterance**: One stretch of speech by one speaker, such as a single prompt read aloud or one turn in a conversation.

## More Swedish and speech data

Every language in stock is on the [off-the-shelf speech datasets](https://indecalai.com/datasets/ots/) page. Related speech datasets: [Norwegian](https://indecalai.com/datasets/ots/norwegian-speech-dataset/), [Danish](https://indecalai.com/datasets/ots/danish-speech-dataset/), [Finnish](https://indecalai.com/datasets/ots/finnish-speech-dataset/) and [German](https://indecalai.com/datasets/ots/german-speech-dataset/).

- [OTS speech datasets](https://indecalai.com/datasets/ots/): Around 35,000 hours across languages, ready to license.
- [Swedish data to your brief](https://indecalai.com/datasets/languages/swedish.html): Swedish speech, text and translation, collected to order.
- [Transcription](https://indecalai.com/services/transcription.html): Swedish audio turned into timed text, checked by people.
- [Languages](https://indecalai.com/datasets/languages.html): 100 languages, collected to order.
- [Data and model evaluation](https://indecalai.com/services/model-evaluation.html): Held-back Swedish speech scored against your targets.

### More speech datasets you may need

- [Norwegian speech dataset](https://indecalai.com/datasets/ots/norwegian-speech-dataset/)
- [Danish speech dataset](https://indecalai.com/datasets/ots/danish-speech-dataset/)
- [Finnish speech dataset](https://indecalai.com/datasets/ots/finnish-speech-dataset/)
- [German speech dataset](https://indecalai.com/datasets/ots/german-speech-dataset/)
- [Lithuanian speech dataset](https://indecalai.com/datasets/ots/lithuanian-speech-dataset/)
- [Dutch speech dataset](https://indecalai.com/datasets/ots/dutch-speech-dataset/)
- [Polish speech dataset](https://indecalai.com/datasets/ots/polish-speech-dataset/)
- [English speech dataset](https://indecalai.com/datasets/ots/english-speech-dataset/)

## Questions about the Swedish speech dataset

Straight answers about licensing Swedish speech. The [off-the-shelf FAQ](https://indecalai.com/datasets/ots/#faq) covers questions that apply to every language.

### Do you have a Swedish speech dataset ready to license?

Yes. Roughly 500 hours of Swedish speech, prompts and conversations are already recorded and ready to license, as part of our off-the-shelf speech pool.

### What's in the Swedish speech dataset?

A mix of scripted prompts and natural conversations in Swedish, recorded on mobile phones, laptops and studio microphones, in quiet and noisy settings. Every recording comes with a transcript and metadata about the speaker, the device and the setting, in WAV, OGG or another common format.

### Does it include Finland Swedish?

The speaker mix is listed on the spec sheet. Ask where the speakers in the hours you'd license come from, and the sample clips let you hear them before you commit.

### Did every speaker consent to AI training?

Yes. Every speaker gave consent for their recordings to be used for commercial AI training.

### How is the Swedish dataset licensed?

Licence terms are agreed with each customer, in writing, before delivery. That includes how you can use the data and whether anyone else can license the same recordings.

### How much does the Swedish speech dataset cost?

We quote each order on its own, based on the hours you need and the licence terms. Send your request and your named contact comes back with a quote.

### Can we hear Swedish samples first?

Yes. Ask and we send Swedish sample clips with the spec sheet, so you can check the audio before you commit.

### What if we need more than 500 hours, or a specific accent?

We collect it. Swedish speakers from our network record new speech to your brief, such as a region, an age group, a device or a domain, and it can sit alongside the hours you license from stock.

### Is this the same as a Swedish voice dataset or speech corpus?

For most uses, yes. Speech dataset, voice dataset, audio dataset and speech corpus are names for the same thing: recorded Swedish speech with details about each recording. If you need studio-quality voice for text-to-speech, ask for the recordings made in a studio.

### Can we use it as a Swedish speech-to-text (ASR) dataset?

Yes. Every recording comes with a transcript, so it's ready for training and testing Swedish speech-to-text models. The spec sheet shows the transcript style, so you can check it matches your pipeline before you license it.

### Why not use a free Swedish speech dataset?

Public Swedish corpora are a good start for research. Each one has its own licence and terms of use, and they cover what their creators chose to record, such as read sentences or broadcast speech. Read the licence before you train a commercial model on one, and check that it sounds like your users.

### What does OTS mean?

OTS stands for off-the-shelf: data that's already recorded and ready to license, instead of collected after you order. Our OTS Swedish speech dataset is roughly 500 hours.

### How many hours of Swedish speech do we need?

It depends on your starting model. A test set can be a few hours, fine-tuning a multilingual model often starts at tens to a few hundred hours, and training from scratch takes thousands. Your own tests should decide.

### Can we fine-tune Whisper or wav2vec 2.0 on it?

Yes. Teams commonly fine-tune open speech models like these on licensed Swedish speech, and every recording comes with a transcript in WAV, OGG or another common format. The spec sheet shows the transcript style, so you can plan any conversion before you train.

### Do you work with US teams?

Yes. We take calls in US Eastern mornings, which is evening in India. We're ISO 27001 certified, our SOC 2 report is available under NDA, and we sign GDPR data processing agreements and HIPAA business associate agreements on request.