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	<title>Bluetooth | iPhone/iPadのアンチョコ</title>
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	<title>Bluetooth | iPhone/iPadのアンチョコ</title>
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	<item>
		<title>iPhone/iPadのBluetoothヘッドホンの接続コーデックの確認方法</title>
		<link>https://yama-iphone.com/check_bluetooth_codec/</link>
					<comments>https://yama-iphone.com/check_bluetooth_codec/#respond</comments>
		
		<dc:creator><![CDATA[yamafd]]></dc:creator>
		<pubDate>Wed, 13 May 2020 08:15:53 +0000</pubDate>
				<category><![CDATA[基本操作]]></category>
		<category><![CDATA[システム設定]]></category>
		<category><![CDATA[Bluetooth]]></category>
		<guid isPermaLink="false">https://yama-iphone.com/?p=367</guid>

					<description><![CDATA[iPhoneでBluetoothヘッドホンやヘッドセットを接続しているときに、コーデックがAACなのかSBCなのかを調べる方法を紹介します。

使用するものはMac本体と、iPhoneをつなぐLightningケーブルです。]]></description>
										<content:encoded><![CDATA[
<p>iPhoneでBluetoothヘッドホンやヘッドセットを接続しているときに、コーデックがAACなのかSBCなのかを調べる方法を紹介します。</p>



<p>使用するものはMac本体と、iPhoneをつなぐLightningケーブルです。</p>




  <div id="toc" class="toc tnt-number-detail toc-center tnt-number_detail border-element"><div class="toc-title">目次(クリックでジャンプ)</div>
    <div class="toc-content">
    <ol class="toc-list open"><li><a href="#toc1" tabindex="0">概要</a></li><li><a href="#toc2" tabindex="0">手順</a></li></ol>
    </div>
  </div>

<h2 class="wp-block-heading"><span id="toc1">概要</span></h2>



<p>海外のサイトでBluetoothの使用コーデックを調べる方法を見つけたのですが、実際に検証したところうまくいかなかったので、アレンジした方法を紹介します。</p>





<a rel="noopener" href="https://www.head-fi.org/threads/howto-find-which-codec-is-used-between-ios-device-and-bluetooth-headphones.835289/" title="HOWTO find which codec is used between iOS device and bluetooth headphones" class="blogcard-wrap external-blogcard-wrap a-wrap cf" target="_blank"><div class="blogcard external-blogcard eb-left cf"><div class="blogcard-label external-blogcard-label"><span class="fa"></span></div><figure class="blogcard-thumbnail external-blogcard-thumbnail"><img fetchpriority="high" decoding="async" src="https://yama-iphone.com/wp-content/uploads/cocoon-resources/blog-card-cache/20a30b5c1b9fc53a52f9b9a59282481c.jpg" alt="" class="blogcard-thumb-image external-blogcard-thumb-image" width="320" height="180" /></figure><div class="blogcard-content external-blogcard-content"><div class="blogcard-title external-blogcard-title">HOWTO find which codec is used between iOS device and bluetooth headphones</div><div class="blogcard-snippet external-blogcard-snippet">Was just curious this weekend (I&#039;m an iOS engineer by day) how to find out which codec your iOS device uses to communica...</div></div><div class="blogcard-footer external-blogcard-footer cf"><div class="blogcard-site external-blogcard-site"><div class="blogcard-favicon external-blogcard-favicon"><img decoding="async" src="https://www.google.com/s2/favicons?domain=https://www.head-fi.org/threads/howto-find-which-codec-is-used-between-ios-device-and-bluetooth-headphones.835289/" alt="" class="blogcard-favicon-image external-blogcard-favicon-image" width="16" height="16" /></div><div class="blogcard-domain external-blogcard-domain">www.head-fi.org</div></div></div></div></a>




<p>上記の海外サイトの記事は2017年の2月で、実際に検証したのはiOS 13.4.1とmacOS Catalina 10.15.4です。</p>



<p>また、Bluettothの機器は次の3つです。（いずれも製造終了となっています）</p>



<ul class="wp-block-list">
<li><a href="https://www.ankerjapan.com/products/a3910">Anker【Soundcore Liberty Air2】</a></li>



<li><a rel="noopener" href="https://www.jp-ride.com/support.html" target="_blank">JPride【412】</a></li>



<li><a rel="noopener" href="http://myheadset.jp/m70/" target="_blank">Plantronics【M70】</a></li>
</ul>



<h2 class="wp-block-heading"><span id="toc2">手順</span></h2>



<p>あらかじめ、Mac本体とiPhoneをつなぐUSBケーブルを用意しておいてください。</p>



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<p>【MacがUSB Type-Cの場合】</p>


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<p>ここからは、手順の説明です。</p>


<div class="timeline-box cf"><div class="timeline-title">全10Step</div><ul class="timeline"><li class="timeline-item cf"><div class="timeline-item-label">Step 1</div><div class="timeline-item-content"><div class="timeline-item-title"></div><div class="timeline-item-snippet"></p>
<p>あらかじめ、Bluetooth機器とiPhoneのペアリングを済ませて、Bluetooth機器は電源を切っておきます。</p>
<p></div></div></li><li class="timeline-item cf"><div class="timeline-item-label">Step 2</div><div class="timeline-item-content"><div class="timeline-item-title"></div><div class="timeline-item-snippet"></p>
<p>Mac本体とiPhoneをLightningケーブルでつなぎます。</p>
<p></div></div></li><li class="timeline-item cf"><div class="timeline-item-label">Step 3</div><div class="timeline-item-content"><div class="timeline-item-title"></div><div class="timeline-item-snippet"></p>
<p>MacのFinderから、「アプリケーション」→「ユーティリティ」のフォルダ内の、①の「コンソール」を起動します。</p>
<p><a href="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec01.jpg"><img loading="lazy" decoding="async" class="frame alignnone wp-image-373 size-full" src="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec01.jpg" alt="Macの「コンソール」を起動" width="866" height="507" srcset="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec01.jpg 866w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec01-500x293.jpg 500w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec01-800x468.jpg 800w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec01-300x176.jpg 300w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec01-768x450.jpg 768w" sizes="(max-width: 866px) 100vw, 866px" /></a></p>
<p></div></div></li><li class="timeline-item cf"><div class="timeline-item-label">Step 4</div><div class="timeline-item-content"><div class="timeline-item-title"></div><div class="timeline-item-snippet"></p>
<p>「コンソール」が起動したら、①の左側のデバイス一覧からiPhoneを選択します。</p>
<p><a href="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec02.jpg"><img loading="lazy" decoding="async" class="frame alignnone wp-image-375 size-full" src="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec02.jpg" alt="Macの「コンソール」からデバイスを選択" width="868" height="493" srcset="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec02.jpg 868w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec02-500x284.jpg 500w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec02-800x454.jpg 800w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec02-300x170.jpg 300w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec02-768x436.jpg 768w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec02-120x68.jpg 120w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec02-160x90.jpg 160w" sizes="(max-width: 868px) 100vw, 868px" /></a></p>
<p></div></div></li><li class="timeline-item cf"><div class="timeline-item-label">Step 5</div><div class="timeline-item-content"><div class="timeline-item-title"></div><div class="timeline-item-snippet"></p>
<p>「コンソール」の右上にある「検索」のエリアに、①「Bluetooth」と入力してキーボードの<span class="square-letter">return</span>を押します。</p>
<p><a href="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec03.jpg"><img loading="lazy" decoding="async" class="frame alignnone wp-image-378 size-full" src="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec03.jpg" alt="Macの「コンソール」から「Bluetooth」を検索" width="868" height="493" srcset="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec03.jpg 868w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec03-500x284.jpg 500w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec03-800x454.jpg 800w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec03-300x170.jpg 300w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec03-768x436.jpg 768w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec03-120x68.jpg 120w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec03-160x90.jpg 160w" sizes="(max-width: 868px) 100vw, 868px" /></a></p>
<p></div></div></li><li class="timeline-item cf"><div class="timeline-item-label">Step 6</div><div class="timeline-item-content"><div class="timeline-item-title"></div><div class="timeline-item-snippet"></p>
<p>図のように、①の部分の「いずれか」をクリックして、ブルダウンリストから②の「サブシステム」を選択します。</p>
<p><a href="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec04.jpg"><img loading="lazy" decoding="async" class="frame alignnone wp-image-379 size-full" src="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec04.jpg" alt="Macの「コンソール」から「いずれか」をクリック" width="868" height="493" srcset="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec04.jpg 868w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec04-500x284.jpg 500w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec04-800x454.jpg 800w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec04-300x170.jpg 300w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec04-768x436.jpg 768w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec04-120x68.jpg 120w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec04-160x90.jpg 160w" sizes="(max-width: 868px) 100vw, 868px" /></a></p>
<p><a href="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec05.jpg"><img loading="lazy" decoding="async" class="frame alignnone wp-image-380 size-full" src="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec05.jpg" alt="Macの「コンソール」から「サブシステム」を選択" width="865" height="496" srcset="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec05.jpg 865w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec05-500x287.jpg 500w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec05-800x459.jpg 800w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec05-300x172.jpg 300w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec05-768x440.jpg 768w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec05-120x68.jpg 120w" sizes="(max-width: 865px) 100vw, 865px" /></a></p>
<p></div></div></li><li class="timeline-item cf"><div class="timeline-item-label">Step 7</div><div class="timeline-item-content"><div class="timeline-item-title"></div><div class="timeline-item-snippet"></p>
<p>ここでやっと、Bluetooth機器の電源を入れて、接続されるのを待ちます。</p>
<p></div></div></li><li class="timeline-item cf"><div class="timeline-item-label">Step 8</div><div class="timeline-item-content"><div class="timeline-item-title"></div><div class="timeline-item-snippet"></p>
<p>Macの「コンソール」の画面に戻って、①の検索エリアに「Bluetooth」と入力されているのに続けて「codec」と入力して、キーボードの<span class="square-letter">return</span>を押します。</p>
<p><a href="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec06.jpg"><img loading="lazy" decoding="async" class="frame alignnone wp-image-383 size-full" src="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec06.jpg" alt="Macの「コンソール」から「Bluetooth」に続けて「codec」を検索" width="868" height="493" srcset="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec06.jpg 868w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec06-500x284.jpg 500w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec06-800x454.jpg 800w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec06-300x170.jpg 300w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec06-768x436.jpg 768w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec06-120x68.jpg 120w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec06-160x90.jpg 160w" sizes="(max-width: 868px) 100vw, 868px" /></a></p>
<p></div></div></li><li class="timeline-item cf"><div class="timeline-item-label">Step 9</div><div class="timeline-item-content"><div class="timeline-item-title"></div><div class="timeline-item-snippet"></p>
<p>以下の図のように検索結果が絞られるので、①のように「A2DP configured&#8230;」の行を探してクリックします。</p>
<p>そうすると、②のように詳細が表示されます。</p>
<p><a href="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec07.jpg"><img loading="lazy" decoding="async" class="frame alignnone wp-image-384 size-full" src="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec07.jpg" alt="Macの「コンソール」から「Bluetooth」に続けて「codec」を検索" width="868" height="493" srcset="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec07.jpg 868w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec07-500x284.jpg 500w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec07-800x454.jpg 800w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec07-300x170.jpg 300w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec07-768x436.jpg 768w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec07-120x68.jpg 120w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec07-160x90.jpg 160w" sizes="(max-width: 868px) 100vw, 868px" /></a></p>
<blockquote><p>A2DP configured at 44.1 KHz. Codec: AAC-LC, VBR max: 256 kbps. 1 frames * (12+744) bytes = 756 per RTP (max=879) every 23.22 ms</p></blockquote>
<p>上記の文中に「Codec: AAC-LC」とあるので、このBluetooth機器はAAC接続されていることがわかります。</p>
<p></div></div></li><li class="timeline-item cf"><div class="timeline-item-label">Step 10</div><div class="timeline-item-content"><div class="timeline-item-title"></div><div class="timeline-item-snippet"></p>
<p>次に、Bluetoothヘッドセットで試してみました。</p>
<p>以下の図のように検索結果が絞られるので、①のように「A2DP configured&#8230;」の行を探してクリックします。</p>
<p>そうすると、②のように詳細が表示されます。</p>
<p><a href="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec07.jpg"><img loading="lazy" decoding="async" class="frame alignnone wp-image-384 size-full" src="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec07.jpg" alt="Macの「コンソール」から「Bluetooth」に続けて「codec」を検索" width="868" height="493" srcset="https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec07.jpg 868w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec07-500x284.jpg 500w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec07-800x454.jpg 800w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec07-300x170.jpg 300w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec07-768x436.jpg 768w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec07-120x68.jpg 120w, https://yama-iphone.com/wp-content/uploads/2020/05/check_bluetooth_codec07-160x90.jpg 160w" sizes="(max-width: 868px) 100vw, 868px" /></a></p>
<blockquote><p>A2DP configured at 44.1 KHz. Codec: SBC, Bitpool: 53 (327 kbps). 8 frames * 119 bytes = 952 per RTP (max=988) every 23.22 ms</p></blockquote>
<p>上記の文中に「Codec: SBC」とあるので、このBluetooth機器はSBC接続されていることがわかります。</p>
<p></div></div></li></ul></div>


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