29.08.22, 13:50
Wireless Noise Canceling Stereo Headset
WH-1000XM4
Low sound quality
Turn down the volume of the connected device if it is too loud.
Keep the headset away from a microwave oven, wireless LAN device, etc.
Bring the headset closer to the Bluetooth device. Remove any obstacles between the
headset and the Bluetooth device.
Keep the headset away from a TV.
When playing music, if the headset and the transmitting Bluetooth device are connected
via an HFP or HSP Bluetooth connection, switch the Bluetooth connection to A2DP with
the connected device.
When using a video calling application on a computer, switch the Bluetooth connection to
HFP or HSP with the computer.
During a video call, sound quality may become low due to the conditions of the
communication line.
If you connect a device with a built-in radio or tuner to the headset, broadcasts may not
be received or the sensitivity may be reduced. Move the headset away from the
connected device.
If the headset connects to the previously connected Bluetooth device, the headset may
only establish the HFP/HSP Bluetooth connection when it is turned on. Use the
connected device to connect via an A2DP Bluetooth connection.
When listening to music from a computer on the headset, the sound quality may be poor
(e.g., difficult to hear the singer's voice, etc.) for the first few seconds after a connection
is established. This is due to the computer specifications (priority on stable connection at
the start of transmission and then switches to priority on sound quality several seconds
later) and is not a headset malfunction.
If the sound quality does not improve after a few seconds, use the computer to establish
an A2DP connection. As for the operations on your computer, refer to the operating
instructions supplied with the computer.
When [Connect to 2 devices simultaneously] is turned on with the "Sony | Headphones
Connect" app, LDAC cannot be used. If you want to use LDAC for music playback, turn
[Connect to 2 devices simultaneously] off.
https://helpguide.sony.net/mdr/wh1000xm4/v1/en/contents/TP0002752820.html
WH-1000XM4 | Help Guide | Low sound quality
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