---
language:
- en
pretty_name: Structured Podcast Open Research Corpus
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tags:
- dataset
- podcasts
- NLP
- audio
- prosody
---

## SPORC: the Structured Podcast Open Research Corpus (V 1.0)
SPORC is a large multimodal dataset for the study of the podcast ecosystem. Included in our data are podcast metadata, transcripts, speaker-turn labels, speaker-role labels, and speaker audio features. For more information on the collection and processing of this data alongside an initial analysis of the podcast ecosystem please refer to our paper [here](http://arxiv.org/abs/2411.07892) or our github repositories for [analysis](https://github.com/blitt2018/SPoRC_analysis) and [data processing](https://github.com/blitt2018/SPoRC_analysis). 

Our dataset is comprised of two tables linked through the podcast episode mp3 urls -- a unique key. The first table provides episode-level information about each podcast such as the transcript, publication date, category, inferred host and guest names, and more. Our second table provides speaker turn-level information such as generic speaker labels (e.g. SPEAKER_03), inferred roles where available (e.g. "host"), the text spoken by speaker(s) for a given turn, and the average audio features for speakers over a given turn. We also provide sample versions of this data with the first 10,000 rows at the episode-level and the first 200,000 rows at the speaker-turn level. 
Usage of our data is conditional on agreement to our data-usage terms. Furthermore, we provide a [*removal form*](https://forms.gle/qkxQrf8eAr7FaAec7) for podcast creators who would like their content removed from the data. 

## Important Columns:
While a number of our columns at the episode-level may be self evident based on their name, certain columns contained information that is inferred or is an indicator of data quality.  

**overlapPropDuration**: *Important indicator diarization quality.* The proportion of an episode that has been assigned to multiple speakers. Indicates how often speakers are found to overlap. 

**overlapPropTurnCount**: *Important indicator of diarization quality.* The proportion of speaker turns with multiple assigned speakers. Indicates how often speakers are found to overlap. 

**avgTurnDuration**: *Potential indicator of diarization quality.* The average duration of speaker turns.  

**totalSpLabels**: *Potential indicator of diarization quality.* The total number of speaker labels with any speaking time in the episode. Contrast with the "mainEpSpeakers" column. 

**hostPredictedNames**: Names of predicted hosts using our NER + role-inference model. 

**guestPredictedNames**: Names of predicted guests using our NER + role-inference model. 

**neitherPredictedNames**: Names not predicted to be either hosts or guests using our NER + role-inference model. 

**mainEpSpeakers**: The speakers in this episode with over 5% of the speaking time based on our diarization output.

**numMainSpeakers**: The number of "mainEpSpeakers"

**hostSpeakerLabels**: A dictionary mapping the name of hosts to their speaker labels in the diarization data. This is done using the heuristic that the first speaker to mention the host's full name is the host.

**guestSpeakerLabels**: A dictionary mapping the name of guests to their speaker labels in the diarization data. Guests are inferred only for the case where 2 main speakers are present and the host is identified in "hostSpeakerLabels" -- leaving only one speaker to be the guest.