【作出一首属于你自己的曲子,根据读取人的意识来谱曲】

【作出一首属于你自己的曲子,根据读取人的意识来谱曲】研究团队尝试将脑机接口(BCI)与音乐相结合,通过大脑的思维来创造出属于自己的音乐。团队开发的音乐软件叫MuseScore。在作曲的时候,首先需要用户选择音调长度并调音,然后当音符持续闪烁时,用户需要集中注意力观看这些音符,这将会使他们的脑电波变化,而BCI便可以识别这些变化,通过对机器训练,可以在90分钟内,创造出一段14秒的音乐旋律。

Brain-computer interface composes music by reading the melodies in people’s MINDS

  • Researchers have successfully composed music using only the power of thought
  • An adapted brain-computer interface let participants write melodies by thinking
  • This could allow the physically disabled to express themselves through music

 

Researchers have discovered how to compose music and transfer it into a musical score using only the power of thought.

The team tapped into a brain-computer interface (BCI) - which can replace some bodily functions to allow people to control special prostheses via their minds.

With this, they developed a system that allows users to do no more than think to compose melodies from scratch.

According to the researchers, this could provide an opportunity for physically impaired people to express themselves with music.

Researchers have discovered how to compose music and transfer it into a musical score using only the power of thought. The new application was derived from an established BCI method currently used for writing

 

'20 years ago, the idea of composing a piece of music using the power of the mind was unimaginable,' Gernot Müller-Putz, a BCI expert who led the study for TU Graz's Institute of Neural Engineering, said.

The new application was derived from an established BCI method called P300, which is currently used for writing.

With an adapted version of the BCI, music software called MuseScore, and an EEG cap that measures brain waves, Müller-Putz and his team tested the system with 18 subjects.

 

In one part of the experiment, they simply copied a given set of letters to test the device,

Then they 'copy-composed,' using the system to recreate pre-written melodies.

Next, they were asked to free-compose and truly 'think' brand new melodies into existence.

 

For the copy and free composing, musical notes, pauses, and chords would flash consecutively on a table, and the subjects were asked to focus on the desired option when it lit up.

This would cause a change in their brainwaves and allow the BCI to recognize the change and draw a conclusion about how to transform the chosen option into part of the musical score.

'20 years ago, the idea of composing a piece of music using the power of the mind was unimaginable,' Gernot Müller-Putz (pictured), a BCI expert who led the study for TU Graz's Institute of Neural Engineering, said

 

The participants - which included late Graz composer and clarinettist Franz Cibulka - all had basic knowledge of music composition and had previously played musical instruments.

In a video showing the process, you can see a participant begin by selecting tone length.

Next, the person selects pitch.

Other possible selections included dot, tie, cord, pause, +/- note, +/- bar, and more.

After an hour and 30 minutes (including breaks), the participant had created a 14-second melody.

'The results of the BCI compositions can really be heard, and most importantly, the subjects enjoyed it,'  Müller-Putz said.

Everyone in the experiment was of good physical health.

'The very positive results of the study with bodily healthy test persons are the first step in a possible expansion of the BCI composition to patients,' he said.

While Müller-Putz said 'we still need a bit more time before BCI is mature enough for daily applications,' he also stated this feat was 'unimaginable' not long ago

链接:http://www.dailymail.co.uk/sciencetech/article-4874522/Brain-computer-composes-music-reading-people-s-minds.html


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