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Bluetooth - Wikipedia
https://en.wikipedia.org/wiki/Bluetooth
Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances using UHF radio waves in the ISM bands, from 2.402 to 2.48 GHz, and building personal area networks (PANs). It is mainly used as an alternative to wire connections, to exchange files between nearby portable devices and connect cell …
BluetoothAudio - Community Help Wiki
https://help.ubuntu.com/community/BluetoothAudio
Overview of Bluetooth Audio. There are two different Audio profiles implemented in Bluetooth. Which one to use depends on how you plan to use your headset. The "sco" audio profile is a low quality, low latency connection. The sound quality is comparable to a cell phone. The poor sound quality is very noticeable when listening to music.
[OpenWrt Wiki] Bluetooth Audio
https://openwrt.org/docs/guide-user/hardware/bluetooth/bluetooth.audio
Bluetooth Audio This wiki entry should enable you to play audio from a bluetooth source to an OpenWrt router that has sound output capabilities. It is working with: Android mobile (Sony Xperia M) as bluetooth source (use “Throw” in Walkman App) to an TI omap BeagleBoard (onboard soundcard, noname Bluetooth 2.1+ USB 1.1 micro dongle) as bluetooth/audio sink.
Bluetooth SCO audio packets can be TX but never RX on ...
https://community.intel.com/t5/Intel-NUCs/Bluetooth-SCO-audio-packets-can-be-TX-but-never-RX-on-NUC6i7KYK/m-p/384373
Hello Board: intel NUC (NUC6i7KYK) Network Chipset: Intel Wireless 8260 (8086:24F3) OS: custom linux distro based on linux Kernel 4.8.8 Bluez-5.45 Pulseaudio-10.0 Whenever a bluetooth SCO connection is made on the NUC I can send SCO packets but not receive them L2CAP packets and a2dp work. When I...
android bluetooth SCO audio is not audible to bluetooth ...
https://stackoverflow.com/questions/32199382/android-bluetooth-sco-audio-is-not-audible-to-bluetooth-headset
After running this code I could not hear any audio to my headset . But when I was debugging ( via BluetoothHeadset , AudioManager , AudioRecord , AudioTrack class's methods ) the code , I found out that. successfully SCO connection started. SCO audio is …
Synchronous Connection-Oriented (SCO) Link
https://www.tutorialspoint.com/synchronous-connection-oriented-sco-link
Synchronous Connection-Oriented (SCO) Link. Mobile Development Apps/Applications Information Technology. Bluetooth link layers define two types of data links, Synchronous Connection Oriented (SCO) link, being one of them. SCO is a symmetric, point-to-point link between the master device and the slave device connected via Bluetooth.
What is the difference between ACL and SCO Link in …
https://stackoverflow.com/questions/40033827/what-is-the-difference-between-acl-and-sco-link-in-bluetooth
SCO is for real-time narrow band signal which does not require retransmission. Voice data in Bluetooth hands free kit is an example for this. This narrow band audio is called "Bluetooth voice" type. Where as ACL is for all other BT data transfer including High quality audio/video data. Example is music playback through A2DP.
Bluetooth - freedesktop.org
https://freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Bluetooth/
The bluetooth adapter may be missing firmware, or the adapter's SCO audio routing may be wrong (SCO is the audio protocol used by HSP and HFP, and SCO audio needs to be routed via the HCI interface in order to work with PulseAudio).
Bluetooth SCO in Android - Bits & Qubits
http://gopinaths.gitlab.io/post/bluetooth_sco_android/
This section explains the steps to test/check on audio over SCO link. Bluetooth SCO is used in Bluetooth Headset profile or Handsfree profile (BT HSP/HFP). In general, the audio data transferred over the SCO channel can be provided via the normal Host Controller Interface (HCI) hardware driver or via a PCM back-channel.
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