High-quality interactive teaching experience is guaranteed through high-quality, low-latency real-time audio and video services and visual quality monitoring solutions.

The customer profile

VIP Practice Partner and Quick Practice Partner are both well-known online music education institutions in China, focusing on solving the problem of piano practice for children aged 4-16. Through real-time audio and video connection between teachers and students, they provide practice partner services for 32 kinds of Musical Instruments such as piano, violin, guzheng, flute, erhu and saxophone. Solve all kinds of difficulties in the process of practicing Musical Instruments, and ensure the online training effect of the children.

The needs of customers

  • High sound quality guarantee

32 kinds of main Musical Instruments are provided, including piano, violin, zither, flute, erhu, saxophone, etc., with high requirements on sound quality.

  • Noise reduction in music scenes

When there is noise in the teaching environment, it is necessary to keep the sound of music clear to provide high-quality teaching experience.

  • Overseas User Access

Students are distributed in different parts of the world, so the call quality of overseas students’ network access needs to be guaranteed.

  • Monitor class quality

Background real-time monitoring of teaching call quality, timely find problems, can quickly troubleshoot problems.

The solution

  • 1V1 interactive teaching

Provide stable, high-quality, ultra-low delay interactive real-time audio and video services, supporting teachers and students to interact with the microphone in real time.

  • High quality

Support 48K full band transmission, high and low full band transmission, music coding lossy transmission, high fidelity playback.

  • Music noise reduction

The 3A (echo cancellation, noise suppression, auto gain) adjustment based on music mode provides clear voice and no squeal in noisy environment, providing quality and stable call experience.

  • Global Network Deployment

Global proximity, cross-border and cross-network transmission, signaling and media dedicated lines are interconnected to provide global audio and video communication services.

  • End-to-end quality monitoring

The visual quality monitoring console supports end-to-end quality indicator monitoring of call dimension and quality indicator statistics of channel dimension. Meanwhile, it opens rich data interfaces to help users quickly integrate into self-built operation and maintenance systems.

Customer value

  • Teaching stability guarantee

Provide high-quality, low-latency real-time audio and video services to ensure the class experience of students around the world, maintain a low drop-off rate, and promote the conversion and renewal of regular courses for students.

  • Teaching high sound quality assurance

Provide SDK with high sound quality technology to improve the sound quality effect of various Musical Instruments, ensure high-quality music teaching experience, and avoid user loss caused by unsatisfactory class experience.

  • Classroom quality is transparent and verifiable

Visual quality monitoring solutions are provided to help users monitor the audio and video quality of online teaching in real time, find problems and locate causes in time, improve user service quality and provide data analysis means for business operation.

Customer testimony

“Ali Cloud audio and video RTC products have very good performance in sound quality and fluency, node coverage in overseas and remote areas in China is also very comprehensive, user experience is very good.” VIP partners – the CTO

Related products

  • Audio and video communication

Real-time Communication (RTC) is aliyun’s real-time audio and video development platform covering the world. Relying on core audio and video codec, channel transmission and network scheduling technologies, it provides highly available, high-quality and ultra-low delay audio and video Communication services, enabling users to quickly build multi-terminal real-time applications. Suitable for online education, video conferencing, interactive entertainment, audio and video social networking scenarios.

For more information about audio and video communication, please refer to the audio and video communication product details page.

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