What is Audio Data? Uses, Types & Data Examples

What is audio data? How can you utilize it? Discover the various types of audio data and their applications for the development of AI applications.

What is Audio Data?

Audio data is a collection of sound recordings used by different technologies for various applications. It consists of digital recordings such as human voice, music, environmental sounds, and other auditory data. Examples of audio data include speech data, sound classification samples, and audio annotations. This data is crucial for developing machine learning models, generative AI, and speech recognition systems. On this page, you’ll find the best data sources for various types of audio data.

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Best Audio Data Databases & Datasets

Here is Datarade's curated selection of top Audio Data. These trusted databases and datasets offer high-quality, up-to-date information.

4.8(1)
Starts at
$1,000 / month

Nexdata | Multilingual Speech Synthesis Data | 400 Hours | TTS Data | Audio Data | AI Training Data

by Nexdata
Available for 42 countries
400 hours
5 years of historical data
95% sentence accuracy
Starts at
$5,000 / purchase
Free sample preview
5.0(1)
Pricing available upon request
5.0(1)

Shaip - Multilingual Conversational AI Training Data (Text & Audio)

by ShAIp
Available for 215 countries
20K Hours of Audio
95% Match Rate
Available Pricing:
One-off purchase
Pricing available upon request
Starts at
€1,250 / purchase

AI-Machine Learning Sound / Audio / Snippet Recordings Database

Available for 249 countries
2 years of historical data
Pricing available upon request

Deeply Korean Read Speech Corpus - Audio AI & ML Training Data

by Deeply
Available for 1 countries
190K records
99% Validity
Pricing available upon request
Pricing available upon request

Data Collection by EPIC Translations: Copywriting, Text & Audio Data Data for AI & ML Training

Available for 215 countries
50K sentences
12 weeks of historical data
100% match rate
Pricing available upon request
10% Datarade discount
10% revenue share

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What are Examples of Audio Data?

AI training data is crucial for the development of machine learning models. Audio data, in particular, is used to train systems for a variety of applications. These are the main examples of audio data:

  • Music Files: Music files used for sound classification.
  • Speech Recordings: Interviews, podcasts, and dialogues used in speech recognition systems.
  • Environment Samples: Ambient sounds, sound effects, and synthesized sounds used in multimedia.
  • Audiovisual Content: Audio tracks from movies, TV shows, radio broadcasts, and video games.
  • Voice Assistants: Voice commands and responses used by AI systems like Siri, Alexa, and Google Assistant.
  • Phone Call Recordings: Customer service calls, earning calls, and any other calls recorded for analysis.

What are the Types of Audio Data?

Audio data is primarily stored in digital formats such as WAV, MP3, and FLAC. These formats encode sound waves into a digital form that computers can process. Audio data can be found in 3 main formats:

Uncompressed Audio Data

  • PCM, WAV, AIFF: High-quality, raw audio ideal for tasks needing fidelity, like speech recognition.

Lossless Compressed Audio Data

  • FLAC, ALAC, WavPack: Maintains high quality with reduced file size, suitable for high-fidelity audio training.

Lossy Compressed Audio Data

  • MP3, AAC, OGG Vorbis, WMA: Efficient for storage and bandwidth, useful for general audio tasks with some quality loss.

How Can You Utilize Audio Data?

Audio data can be utilized in multiple ways, particularly in the development of AI applications:

  • Speech Recognition: Converting spoken language into text, enabling functionalities like voice search and transcription.
  • Natural Language Processing (NLP): Enhancing the ability of machines to understand and respond to human language.
  • Voice Assistants: Powering AI assistants like Siri, Alexa, and Google Assistant to respond to voice commands.
  • Music and Sound Analysis: Analyzing audio to identify patterns, genres, or even to recommend new music.
  • Security Systems: Using audio for surveillance and identification purposes, such as voice biometrics.

Frequently Asked Questions

Where can I buy Audio Data?

Data providers and vendors listed on Datarade sell Audio Data products and samples. Popular Audio Data products and datasets available on our platform are TagX Data collection for AI/ ML training | LLM data | Data collection for AI development & model finetuning | Text, image, audio, and document data by TagX, Nexdata | Multilingual Speech Synthesis Data | 400 Hours | TTS Data | Audio Data | AI Training Data by Nexdata, and WebAutomation Off the Shelf Datasets | Audio Data for AI & ML Training | 600+ Hours of Recording | Speech Recognition, Natural Language Processing by Webautomation.

How can I get Audio Data?

You can get Audio Data via a range of delivery methods - the right one for you depends on your use case. For example, historical Audio Data is usually available to download in bulk and delivered using an S3 bucket. On the other hand, if your use case is time-critical, you can buy real-time Audio Data APIs, feeds and streams to download the most up-to-date intelligence.

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