How Pitch, Dynamics, and Vibrato Shape Emotions in Violin Music

Wenyi Song – wsongak@cse.ust.hk
Twitter: @sherrys72539831

Department of Computer Science and Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, NA, NA, Hong Kong

Anh Dung DINH
addinh@connect.ust.hk

Andrew Brian Horner
horner@cse.ust.hk
Department of Computer Science and Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR

Popular version of 1aMU2 – The emotional characteristics of the violin with different pitches, dynamics, and vibrato levels
Presented at the 187th ASA Meeting
Read the abstract at https://eppro01.ativ.me//web/index.php?page=IntHtml&project=ASAFALL24&id=3767557

–The research described in this Acoustics Lay Language Paper may not have yet been peer reviewed–


Music has a unique way of moving us emotionally, but have you ever wondered how individual sounds shape these feelings?

In our study, we looked at how different features of violin notes—like pitch (the height of the notes), dynamics (the loudness of the sounds), and vibrato (how the note vibrates)—combine to create emotional responses. While previous research often focuses on each feature in isolation, we explored how they interact, revealing how the violin’s sounds evoke specific emotions.

To conduct this study, we used single-note recordings from the violin at different pitches, two levels of dynamics (loud and soft), and two vibrato settings (no vibrato and high vibrato). We invited participants to listen to these sounds and rate their emotional responses using a scale of emotional positivity (valence) and intensity (arousal). Participants also selected which emotions they felt from a list of 16 emotions, such as joyful, nervous, relaxed, or agitated.

Audio 1. The experiment used a violin single-note sample (middle C pitch + loud dynamics + no vibrato).

Audio 2. The experiment used a violin single-note sample (middle C pitch + soft dynamics + no vibrato).

Audio 3. The experiment used a violin single-note sample (middle C pitch + loud dynamics + high vibrato).

Audio 4. The experiment used a violin single-note sample (middle C pitch + loud dynamics + high vibrato).

Our findings reveal that each element plays a unique role in shaping emotions. As shown in Figure 1, higher pitches and strong vibrato generally raised emotional intensity, creating feelings of excitement or tension. Lower pitches were more likely to evoke sadness or calmness, while loud dynamics made emotions feel more intense. Surprisingly, sounds without vibrato were linked to calmer emotions, while vibrato added energy and excitement, especially for emotions like anger or fear. And Figure 2 illustrates how strong vibrato enhances emotions like anger and sadness, while the absence of vibrato correlates with calmer feelings.

Figure 1. Pitch, Dynamics, and Vibrato average ratings on valence-arousal with different levels. It shows that higher pitches and strong vibrato increase arousal, while soft dynamics and no vibrato are linked to higher valence, highlighting pitch as the most influential factor.

 

Figure 2. Pitch, Dynamics, and Vibrato average ratings on 16 emotions. It shows that strong vibrato enhances angry and sad emotions, while no vibrato supports calm emotions; higher pitches increase arousal for angry emotions, and brighter tones evoke calm and happy emotions.

Our research provides insights for musicians, composers, and even music therapists, helping them understand how to use the violin’s features to evoke specific emotions. With this knowledge, violinists can fine-tune their performance to match the emotional impact they aim to create, and composers can carefully select sounds that resonate with listeners’ emotional expectations.

How Do the Erhu and Violin Shape Our Emotions? A Cross-Cultural Study

Wenyi Song – wsongak@cse.ust.hk
Twitter: @sherrys72539831

Department of Department of Computer Science and Engineering
The Hong Kong University of Science and Technology
Hong Kong SAR

Andrew Brian Horner
horner@cse.ust.hk
Department of Department of Computer Science and Engineering
The Hong Kong University of Science and Technology
Hong Kong SAR

Popular version of 1aMU3 – Emotional characteristics of the erhu and violin: a comparative study of emotional intensity in musical excerpts
Presented at the 187th ASA Meeting
Read the abstract at https://eppro01.ativ.me//web/index.php?page=IntHtml&project=ASAFALL24&id=3767558

–The research described in this Acoustics Lay Language Paper may not have yet been peer reviewed–


Music speaks to us across cultures, but can the instruments we choose shape our emotions in different ways?

This study compares the emotional responses evoked by two similar yet culturally distinct string instruments: the Chinese erhu and the Western violin. Both are bowed string instruments, but they have distinct sounds and cultural roles that could lead listeners to experience different emotions. Our research focuses on whether these instruments, along with variations in performance and listener familiarity, influence emotional intensity in unique ways.

Western violin performance example: violinist Ray Chan playing ‘Mendelssohn Violin Concerto in E minor, Op. 64’

 

Chinese erhu performance example: erhu player Guo Gan playing the Chinese piece ‘Horse Racing’ (feat. Pianist Lang Lang)

 

To explore these questions, we conducted three online listening experiments. Participants were asked to listen to a series of short musical pieces performed on both the erhu and violin. They then rated each piece using two emotional measures: specific emotion categories (such as happy, sad, calm, and agitated) and emotional positivity and intensity.

Our results show clear emotional differences between the instruments. The violin often evokes positive, energetic emotions, which may be due to its bright tone and dynamic range. By contrast, the erhu tends to evoke sadness, possibly because of its softer timbre and its traditional association with melancholy in Chinese music.

Interestingly, familiarity with the instrument played a significant role in listeners’ emotional responses. Those who were more familiar with the violin rated the pieces as more emotionally intense, suggesting that cultural background and previous exposure shape how we emotionally connect with music. However, our analysis also found that different performances of the same piece generally did not change emotional ratings, emphasizing that the instrument itself is a major factor in shaping our emotional experience.

These findings open new paths for understanding how cultural context and personal experiences influence our emotional reactions to music. The distinct emotional qualities of the erhu and violin reveal how musical instruments can evoke different emotional responses, even when playing the same piece.

New Across Acoustics Episode: Exploring Timbre of Stradivari Violins

Why is the sound quality of some violins preferred over others?  In this episode, we talk to Carlo Andrea Rozzi (National Research Council of Italy) and Massimo Grassi (University of Padova) about the myth surrounding Stradivari violins as well as their research into the aspects of violin timbre that cause listeners to prefer one instrument to another.

(Like the episode? Read the article!)

3pMUb3 – Does the act of ‘playing’ a violin measurably change any of its acoustic properties? — preliminary results

Ms. Kourtney Adkisson – kourtney.adkisson@cwu.edu
Dr. Andy Piacsek – andrew.piacsek@cwu.edu

Department of Physics
Central Washington University
400 E University Way
Ellensburg, WA 98926

Popular version of paper 3pMUb3
Presented Wednesday afternoon, December 9, 2020
179th ASA Meeting, Acoustics Virtually Everywhere

Among many violinists and luthiers, it is believed that violins need to be played (or vibrated) for some time in order for the tone to develop, a process known as “playing in.”  Although it is not uncommon for makers and sellers of violins to mechanically vibrate instruments continuously for several weeks before selling them, there is no scientific consensus on how, or to what extent, the instrument is altered in this process.

The work that we are presenting is the first stage of a long-term project that seeks to answer the question, “Does the act of ‘playing’ a violin measurably change any of its acoustic properties?”

Because many factors contribute to the sound that violins produce, it is challenging to identify changes in tonal characteristics that are due specifically to the cumulative effects of being played.  To address this challenge, we are conducting a systematic study utilizing three new sibling violins (Andre Tellis model 200, made in 2018):  two of these will be mechanically vibrated to simulate playing for several months, while the third will be a control – kept in the same environment, but not played.  During this time, we will periodically measure the vibrational and acoustic response of all three violins.

Before we begin artificially playing the violins, however, we need to understand how much variability we can expect in our measurements of the vibration response, which is essential for identifying subtle systemic changes in violin response that correlate with being vibrated over time.  Therefore, minimizing and quantifying measurement uncertainty is the objective of the initial phase of our project, which is reported here.

The measurement setup we evaluated consists of a violin that is suspended with rubber bands and excited by a mechanical shaker that exerts a lateral force on the bridge at many different frequencies, similar to forces exerted by vibrating strings.   A Laser Scanning Doppler Vibrometer (LSDV) is used to measure the vibrational response, or the amplitude of motion plotted as a function of frequency, at several locations on the top plate of each violin.  Information from all the scan points can be combined to construct an image of how the top plate is actually moving at each frequency.

The LSDV set-up is shown including the acoustical table, laser head, computer, and mechanical shaker.

violin

A violin is ready to be measured, the body suspended with rubber bands and a mechanical shaker attached.

Seven different modes are shown, in which the violin displays a dramatic response to a specific frequency.

We compared the vibration response of the three sibling violins. With the caveat that our measurement locations varied slightly among the instruments, our results show that the differences in response among sibling violins are comparable to the differences between the siblings and a ten year old Yamaha violin of comparable quality.

Andre Tellis violins

A comparison between the vibration response of three sibling Andre Tellis violins.

Yamaha violin

The vibration response of two sibling Andre Tellis violins and an older Yamaha violin.

To assess the uncertainty associated with our measurement method, we measured the vibrational response of the same violin on different dates.  Our measured response curves for the same violin are quite similar, but they are not identical.  These preliminary results indicate inherent variability in our system caused by small differences in the testing set-up or by minute changes to the violins themselves.

The vibration response for one of the sibling violins is shown for two different measurements in May 2019 and March 2019.

The vibration response for the Yamaha is shown for two different measurements in May 2019 and March 2019.

Additional measurements are needed to determine ways to reduce and quantify this uncertainty before we proceed with the next phase of the project.