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The following situations may affect the quality of the Bluetooth® connection between your unit and the connected device:
The communication between the devices will be poor if there is an obstruction between the unit and the connected device. Try the following:
Change the position or location of the unit or connected device.
If the connected device has a cover on it, take it off to improve the communication distance.
If the connected device is in a bag or in a pocket, try moving the position of the device.
Place the devices closer together to improve signal transmission.
Signal interference may occur when a Wi-Fi® device is in use near the unit if they both use the same 2.4 GHz frequency band. To resolve the issue, try the following:
Turn off the Wi-Fi function of the connected device.
If a Wi-Fi device is in use near the unit, turn off its Wi-Fi function or use the device at least ten meters away from the unit.
Use the unit as far away as possible from a microwave oven, ticket gates, other Bluetooth device or places that generate electromagnetic radiation.
Note: Turn off the noise-cancelling function if you are using a noise canceling headphone.
If multiple devices are connected to your router, speed may be slow. Turn off the other devices or disconnect the Wi-Fi connection to the router, then check if the signal strength has improved.
Bluetooth transmission is affected if too many applications are running at the same time on the connected device. Close applications that you are not using to avoid slowing down the Bluetooth transmission.
The sound may skip if the music being played has a high bit rate. Check the specifications of the connected device and the format of the audio file.
For MDR-1000X, WH-1000XM2, WF-1000X, WF-SP700N, WI-1000X, MDR-10RBT, MDR-1RBT, MDR-AS700BT, MDR-EX31BN, MDR-XB950BT, or MDR-ZX770BN, set the sound quality mode to Priority on stable connection mode.
Turn off your headset.
If the unit is currently set to Standard mode (default), press the POWER button while holding down the VOL- button for more than two seconds to turn it on.
If the headset is currently set to Priority on sound quality mode.
Turn on the headset while holding down the VOL- button.
Turn off the headset.
Press the POWER button while holding down the VOL- button for more than two seconds to turn it back on.
Note: The battery charge light flashes red first and then blue when the sound quality mode switches to Priority on stable connection mode.
For all other models, set the bit rate to the one that the unit supports.
If the sound still skips after performing the steps above, restore the unit to factory default. For model-specific instructions, check your device manual. Manuals are posted on your model support page.
Delete pairing data, and then pair the unit and device again.
Bluetooth transmission is affected if too many applications are running at the same time on the connected device. Close applications that you are not using to avoid slowing down the Bluetooth transmission. The sound may skip if the music being played has a high bit rate.
This happens because Bluetooth has two modes: The first mode is for listening to higher-quality audio. The second mode is for both speaking through the microphone and listening to audio. When Bluetooth switches to the second mode, audio quality is reduced until the microphone is no longer in use.
If you're experiencing choppy audio playback over Bluetooth, it could be because of interference from other devices. Try moving your Bluetooth device away from other electronic devices to see if that improves the connection quality.
Typically the receiver's connection is stalling due to over-utilization. Alternately, the listener's audio equipment may be malfunctioning due to a faulty cable or jack that is injecting noise or gaps into the stream. If there is no problem playing back other types of audio, then the problem is network related.
Poor network performance, lack of memory, or high CPU usage often causes the audio quality to drop, become delayed or sound robotic. Try closing all applications you aren't using to free up some bandwidth. If you're using a dial-up Internet connection with VoIP, it may cause poor performance.
The answer, as with so many aspects of audio equipment, is “it depends.” On a purely technical level, the amount of sonic information that can pass through traditional Bluetooth is less than through wired headphones or even a Wifi connection, meaning lower-resolution audio. So, yes.
Devices like wireless speakers, baby monitors, and microwaves can cause interference. Wi-Fi routers also influence your Bluetooth connection. Once you've done the previous step, you should be able to identify the device that's causing the interference.
Sound Quality: As mentioned before, wired headphones generally sound better than wireless headphones because Bluetooth® can only handle so much information through its signal. However, this only applies if you're trying to listen to data-loaded lossless file formats like FLAC, WAV, or ALAC.
To enable this data to pass from one device to another, Bluetooth relies on SBC (low complexity subband coding) compression to 'fit' your music through the technology's imaginary 'thin pipes' – once again, resulting in less detail heard in your music. This doesn't sound great for true music lovers.
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