Enjoy Apple Music's high -resolution roseless with ASCII.jp Luxury & Precision W2

"Apple Music" has started distribution of the long -awaited "spatial audio", "loseless", and "high -resolution" sound sources.

This article introduces an example of how to enjoy high -resolution music with Apple Music.However, in order to make the article simple, this article has an iPhone / iPad (here, iPhone 12 Pro / iOS 14.6) is used as an example.In addition, we will describe the playback of high -resolution sound sources (high -resolution loseless in Apple's expression), which is being distributed on Apple Music instead of spatial audio.

Equipment required for high -resolution roseless playback

In the case of portable playback, other than the iPhone / iPad, what is needed for playback is USB DAC and earphones.Bluetooth connection is not a lossless transmission, but is decoded to PCM once with iPhone / iPad, re -compresses it to AAC, etc. To maximize the high -resolution sound source, wired connection, as much as possible, high -class earphones / as much as possible.The use of headphones is desirable.However, there is no need to be an earphone with a high -resolution logo (although it can be a guide to high sound quality).Here, I used the new CAMPFIRE AUDIO "ARA", which has a high resolution and is suitable for listening to fine sounds.

Luxury & Precisionの「W2」とCampfire Audioの「ARA」。

To play high -resolution Loseless, a high -resolution -compatible USB DAC (a DAC that passes a signal of up to 192kHz/24bit) is essential.As the previously introduced "Acoustune AS2000", products through MFI authentication have a upper limit of 48kHz, so it is enough to hear the Apple Music "Loseless" (up to 48kHz/24bit), but "High -Res Roseless".It does not play quality.

In the definition of domestic (JEITA), high -resolution is used as a sound source of quality exceeding CD.In other words, in Japan, 48kHz/24 -bit lossless sound sources may be regarded as high -resolution, but in Apple Music, the loseless sound source up to 48kHz/24bit is treated as "Loseless", and the lossless sound source of the sampling rate (up to 192kHz) exceeds that is "".It is called "High -Res Losress".In this article, we will match the definition of Apple Music.

USB DACは使用用途に応じて様々な大きさや形のものがある。ハイレゾ対応のUSB DACでiPhoneと組み合わせるのに都合がよく高性能な製品を選ぶならLuxury & Precisionの「W2」がお勧めだ。W2はいわゆるドングル型・スティック型と呼ばれるもので、DAC機能を内蔵したヘッドホンアンプだ。PCにも接続できるが、バスパワー動作が可能でコンパクトなのでスマホとの接続に適している。

Includes Lightning cable.

Furthermore, the point that can be directly connected to the iPhone with the standard attached cable, regardless of the Lightning-USB camera adapter, is suitable for old generation iPads equipped with Lightning terminals instead of iPhone or USB Type-C.

W2はAstell & Kern「SR15」やiBasso「DX300」などが採用しているようなハイクラスのDAC ICをデュアルで搭載している。また、通常の3.In addition to 5mm terminals, it is a balance drive compatible 4.A 4mm terminal is also adopted, and the sound quality during the balance is particularly remarkable.The price is a bit high, but it is valuable.

W2 can check the input sampling rate on the LCD screen, so you can see how many khz signals actually reach the DAC.In PC audio, the quality that is not high -resolution in the signal route may be processed by dropping sampling rates and bits, and the high -resolution sound source of 192kHz has actually been prepared, but it actually appeared only to 48kHz.It often happens.In this article, the regeneration quality is confirmed using this function.

The setting required for high -resolution roseless playback

To enjoy Apple Music's high -resolution roseless sound source, you need to sign up for Apple Music.Then open "Music" from "Settings"."Dolby Atmos" and "Audio quality" in "Audio" are newly added items.

With the quality of this audio, the "Loseless Audio" item is turned on, and the "high -resolution roseless" is not selected for each item of "mobile communication streaming", "wifi streaming" and "download" below.In other words, it is important to note that only the high -ranking roses audio is turned on, so it will be played up to 48kHz.

When the setting is changed, an alert is displayed, "Recommended to use external hardware" is displayed, but for this, you can select "Continue" because the USB DAC is connected.The high -resolution loseless sound source consumes a lot of capacity, so you have to think about whether or not it will be regenerated with the quality of high -resolution when mobile communication.

If you play high -resolution roseless songs in this state, you can enjoy music with high -resolution quality.In W2, if the value above 48kHz is displayed, such as 192kHz and 96kHz, the high resolution will be played correctly.

Screen during playback

I listened to a song that arranged the soundtrack of the movie "Piano Lesson" composed by Michael Niman, a representative of the UK.Apple Music is offered as a 192kHz high -resolution roseless sound source.That can be confirmed from the W2 LCD screen.By the way, the display of 32 -bit instead of 24bit is due to USB DAC side, not the song.

再生音は「ロスレス」の48kHzでも素晴らしいが、「ハイレゾ・ロスレス」の192kHzにすると美しい楽曲が一層感動的なものになる。細かな音の情報量が増え、音楽全体がさらに豊かさを増す。聴きながら途中で「ロスレス」の設定に戻すと、やや音が軽く（薄く）なったように感じられるだろう。高性能なUSB DAC内蔵ヘッドホンアンプLuxuary & Presision W2の能力と相まって、素晴らしいサウンドが味わえ、スマホのポータブルアンプで再生されているとは信じ難いレベルの音質だ。

I want you to enjoy Apple Music, which adds new charm.

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