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FCC confirmed that Sony wh-1000xm4 design does not support Qualcomm aptx or aptx HD

via:cnBeta.COM     time:2020/7/27 21:38:10     readed:1105

Before it is expected to be released this week, the FCC has confirmed several features of Sony wh-1000xm4. Sony has upgraded its popular wh-1000xm3 headphones after nearly two years. The biggest change is that it has given up the support for Qualcomm aptx and aptx HD codec.The wh-1000xm4 is expected to retail at $349.99. More information about the wh-1000xm4 was released before it was released, and the images were added to the database after the FCC's confidentiality agreement with Sony expired.


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FCC has released the test certificate photo, internal circuit board and user manual of wh-1000xm4. Although the former does not look different from previously leaked images, they have higher resolution and are consistent with the designs leaked by multiple retailers.

The scanning copy of user's manual confirms that wh-1000xm4 will only support AAC, SBC and LDAC codec. In contrast, wh-1000xm2 and wh-1000xm3 also support high pass aptx and aptx HD codec. According to the information leaked before, Sony gave up its support for the high pass codec because it used the MediaTek chipset. The user manual also confirms that wh-1000xm4 will support up to 96KHz LDAC and 990kbps bit rate.

FCC also disclosed the internal circuit board of wh-1000xm4. Sony's internal model is hdx-2943. We can't find any other reference materials about this name, but the Walkman blog has confirmed that the chip has many similarities with the chip contained in the wh-1000xm3, although it looks slightly different. According to the website, the board contains Sony's QN1 noise reduction processor, which was mentioned in a previous leak.

Sony is expected to launch the wh-1000xm4 for $349.99, which will be launched in the global market.

It's worth noting that Sony Brazil even leaked the packaging of this product, which means that the wh-1000xm4 has no secrets inside and outside.

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