Update README.md

README.md

@@ -38,7 +38,6 @@ git clone git@hf.co:datasets/ccmusic-database/piano_sound_quality
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 ## Dataset Description
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 - **Homepage:** <https://ccmusic-database.github.io>
 - **Repository:** <https://huggingface.co/datasets/CCMUSIC/piano_sound_quality>
 - **Paper:** <https://doi.org/10.5281/zenodo.5676893>
@@ -51,18 +50,14 @@ This database contains 12 full-range audio files (.wav/.mp3/.m4a format) of 7 mo
 A score sheet (.xls format) of the piano sound quality rated by 29 people who participated in the subjective evaluation test is also included.
 
 ### Supported Tasks and Leaderboards
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 Piano Sound Classification, pitch detection
 
 ### Languages
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 English
 
 ## Dataset Structure
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 ### Data Instances
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-.wav
+.zip(.wav)
 
 ### Data Fields
 ```
@@ -77,62 +72,47 @@ English
 ```
 
 ### Data Splits
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 train, validation, test
 
 ## Dataset Creation
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 ### Curation Rationale
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 Lack of a dataset for piano sound quality
 
 ### Source Data
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 #### Initial Data Collection and Normalization
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 Zhaorui Liu, Shaohua Ji, Monan Zhou
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 #### Who are the source language producers?
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 Students from CCMUSIC
 
 ### Annotations
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 #### Annotation process
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 This database contains 12 full-range audio files (.wav/.mp3/.m4a format) of 7 models of piano (KAWAI upright piano, KAWAI grand piano, Yingchang upright piano, Xinghai upright piano, Grand Theatre Steinway piano, Steinway grand piano, Pearl River upright piano)
 
 #### Who are the annotators?
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 Students from CCMUSIC
 
 ### Personal and Sensitive Information
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 None
 
 ## Considerations for Using the Data
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 ### Social Impact of Dataset
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 Help developing piano sound quality rating apps
 
 ### Discussion of Biases
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 Only for pianos
 
 ### Other Known Limitations
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 No black key in Steinway
 
 ## Additional Information
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 ### Dataset Curators
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 Zijin Li
 
 ### Evaluation
 [Monan Zhou, Shangda Wu, Shaohua Ji, Zijin Li, and Wei Li. A Holistic Evaluation of Piano Sound Quality[C]//Proceedings of the 6th Conference on Sound and Music Technology (CSMT). Springer, Singapore, 2023.](https://arxiv.org/pdf/2310.04722.pdf)
 
+Note: this paper only uses the first 7 piano classes of the dataset.
+
 ### Licensing Information
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 MIT License
@@ -173,5 +153,4 @@ SOFTWARE.
 ```
 
 ### Contributions
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 Provide a dataset for piano sound quality