Which streaming service sounds the BEST? | 哪種串流音樂服務音質最好聽?

Updated: Apr 16

When the artist release their music to the internet they upload wave or aiff uncompressed audio file. However, the uncompressed audio file size is large. For example, a 3 minutes song will take from 30 MB up to 60 MB depends on the sample rate. This file size is too big to be streaming to the users. The ideal file size for streaming need to be 10 times smaller to play back normally.

The technology to achieve this task is call compression. The service provider compress that original uploaded audio to 3 MB from original 30 MB for a 3 minutes song. The way to achieve this is to remove the close musical data, super high frequency and super low frequency data. In another word is reduce the audio resolution. Use a TV example for easy understanding is to reduce the resolution from 4K to 480p. It looks like this :

Another better way to compress and reduce audio data size is the lossless compression call Free Lossless Audio Codec or FLAC. It uses the mathematical formula to reduce data size. It's similar to how you zip your office files before you email it. Here you can see the difference:

Which streaming service offers the best Audio Quality?

Now you know the science of the streaming audio. All music streaming services are offering High quality lossless compression audio nowadays from different price range. There is a very small quality difference from the service providers, like Spofity, Apple Music, Tidal, YouTube Music premium, etc.

Why are we hearing it differently?

Our ability to hear the difference in audio quality also rely on one key fact. That is the playing back devices. If your system has limited audio reproduction frequency range and resolution. For example cheap earphone/headphones made from low quality speakers and preamp. You will not able to hear the difference between high quality uncompressed audio and compressed audio .This is like you are trying to play a color video on a black white TV. You will never get other colors. Best way is to find a friend who has the device can hear the difference and go to his place to listen. Decide yourself after if you want to upgrade your devices and services.

Here is an alternative.

OPSIS II 's internal processor recalculate compressed audio data and restore the lost data to let you hear the enhanced high quality audio in 360 degree. This allow your ears to hear more details and dynamic without upgrade your service. OPSIS II is an affordable alternative without break your wallets. We will publish more order information soon!

More info:



藝術家將音樂發佈到互聯網後,他們會上傳wave或aiff未壓縮的音頻格式,而未壓縮的數據文件通常很大。例如,一首3分鐘的歌曲將佔用30 MB到60 MB的數據(具體取決於採樣率),這樣無法將其流式線上傳輸給用戶。

音樂文件一般需要小10倍才能流傳輸數據,以便人們正常播放,實現此任務的技術稱為壓縮。服務提供商將原始音頻從原始30 MB壓縮到3 MB来播放3分鐘的歌曲。這樣做的方法是刪除接近的音樂數據、超高頻和超低頻數據,換句話說是降低音頻分辨率,使用電視示例以便於理解是從4K到480p。看起來像這樣:



現在您知道了串流音頻背後的原理。現在幾乎所有音樂流媒體服務都以不同的價格範圍提供不同高品質的無損壓縮音頻,不同的服務提供商之間的區別很小,比如KKBOX、Spotify、Apple Music, Line Music等等,因爲來源都是相同的,只是有些免費的音質會較差。




OPSIS II的內部處理器會重新計算壓縮的音頻數據,並讓您以360度聽到增強的高質量音頻。這使您無需升級設備即可聽到更多細節和動感,OPSIS II是負擔得起的替代方案。我們將會公佈更多OPSIS II 的開賣信息!




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Building 239, Innovation Campus, University of Wollongong

Squires Way, North Wollongong, NSW, 2522, Australia

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