Azio USB Micro蓝牙适配器 V4.0 EDR和aptX（BTD-V401）
Stream high-definition audio wirelessly from your PC to your aptX enabled speakers with the Azio BTD-V401 Bluetooth Adapter. CSR's aptX audio codec compresses high-quality audio further, enabling it to fit within Bluetooth's limited bandwidth. With Bluetooth version 4.0, Enhanced Data Rate (EDR), and low energy consumption technology, you can transfer data up to 3 Mbps and enjoy the freedom of connecting up to 33 feet away. Windows 7: Please make sure .NET 4.0 (or newer) Framework is installed prior to installing CSR Harmony software. .NET Framework can be installed by using Windows Update. Windows 8/8.1: Please make sure .NET 3.5 Framework is installed. After installing CSR Harmony, Windows should prompt you to install it. Mac OS X: CSR Harmony software is not supported on OS X but the adapter will work with OS X native drivers and Bluetooth Profiles.
Azio USB Micro蓝牙适配器-它是怎样工作的
- Windows 7：请通过访问Windows Update确保已安装.NET 4.0。
- Windows 8：请在出现提示时安装.NET 3.5。
- Mac OS X：OS X不支持CSR Harmony软件，但是适配器可以与OS X本机驱动程序和Bluetooth Profiles一起使用。
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My PC is running Windows 7 64-bit and has Administrator privileges. I am installing the adapter to send audio to my Teac AI-301DA integrated amplifier that has a built in Bluetooth receiver that is aptX compliant. The Azio USB Micro Bluetooth Adapter BTD-V401 comes with a mini CD than has the CSR Harmony software needed to create a Bluetooth connection that utilizes the aptX codec. I do not use any other Bluetooth devices such as Keyboards or mice. While specific to the Teac these notes may be helpful for using this device with other devices.
STEP 1 - Loading the CSR Harmony software and driver.
1. Load the CSR software from mini CD (v220.127.116.11 2010-12) - Be patient, it takes a while.
2. Attach the BTD-V401 to a USB port facing the direction of the receiver.
3. Allow CSR8510 A10 driver to load - Be patient, it takes a while.
4. Allow other related drivers to load - Be patient, it takes a while.
CSR Bluetooth icon now appears in the taskbar.
STEP 2 - Go to the Teac AI-301DA device.
1. Press the Source button until Bluetooth is selected.
2. Hold the Source for three seconds until LED flashes rapidly.
STEP 3 - Go to the PC
1. Right-click on Bluetooth icon in taskbar.
2. Click on Add Device | Audio/Video Device
3. A search for devices is started and the AI-301DA should be found. If not relocate or extend the Bluetooth transmitter via a USB extension cable to a improved location with better line of sight to the Bluetooth receiver (Had to aim the adapter pointing through a open doorway towards AI-301DA to have search find the target 20 feet away. Apparently the signal was strong enough to go through two of my walls but not three).
4. After a connection is made a CSR notification message briefly appears indicating that a connection has been made to a aptX compatible device. This means a aptX connection is active.
STEP 4 - Foobar2000 Playback Settings... (Optional)
Note: You cannot stream 24-bit music via a Bluetooth connection.
In Foobar2000 set the Device and Output Format:
1. Shift-Left-Click on Playback.
2. Select Device | Preferences.
3. Set Device to Bluetooth Audio Renderer (2- Bluetooth Stereo Audio). May have to try several.
4. Set Output Format to 16 bit.
To change Bluetooth Default device and Format in Windows 7 Sound controls.
1. Right-click on the speaker icon in the taskbar.
2. Click on Playback devices.
3. Select Bluetooth Audio Renderer.
4. Click on Properties.
5. Click on Advanced.
6. Click on the drop down arrow in Default Format box and choose a format.
2 channel, 16 bit, 44100 Hz (CD Quality)
2 channel, 16 bit, 48,000 Hz (DVD Quality)
Note: If you want all your audio to go to the connected Bluetooth device the Right-click on the Bluetooth Audio Renderer and select Set as default device. Setting it to the default is also useful if you use a audio player that does not allow changing the output device within the program (Windows Media Player etc.) If using Foobar2000 and you want to control it separately there is no need to.
Play music !!
* A Small green led on the Azio adapter flashes rapidly during transmission and slowly when not in use.
* Changing inputs on AI-301DA while playing music with Foobar2000 generated a Foobar2000 Playback error: Unrecoverable playback error: Unknown error (80070006). Follow procedure below to reestablish a connection.
* Use Foobar2000 volume control unless the device will be operating in non-exclusive mode.
* How do I know if aptX is working? When your computer is establishing connection with your aptX device, you will see a 2 second pop up of an aptX logo with a messsage saying "You have connected to an aptX enabled device". (From Azio Bluetooth FAQ)
* The AI-301DA does not seem to automatically shut off when the music stops playing as the radio keeps transmitting a signal. I had to switch off the radio to get the AI-301DA to switch off after the normal delay. Right-click on the Bluetooth icon in the taskbar and select Turn Bluetooth Radio on/off to toggle. This is not exactly what I want so I am still trying to find a way to power off the radio when the music stops (sleep).
* If switching back to Bluetooth connection after using other sources you may get a Foobar2000 Playback error: Unrecoverable playback error: Device invalidated. Follow procedure below to reestablish a connection.
Reestablish a Connection:
1. Right-click on icon in the taskbar.
2. Click on Show Bluetooth Devices.
3. Double-click on AI-301DA.
4. Double-click on A2DP (Sink).
5. Click OK after message is displayed.
6. Play music in Foobar2000.
CSR Help and Troubleshooting will be available on your computer in the program folder after loading the software. It is a good resource to check if you have issues. Right-click on the Bluetooth icon in the taskbar and select Bluetooth Settings then More about Bluetooth settings to access.
Azio USB Micro Bluetooth Adapter V4.0 EDR and aptX (BTD-V401). The current CSR Harmony (18.104.22.168) worked
beautifully under Windows 7 with this dongle and it is class 1. CSR Harmony, not BlueSoleil. No old versions of software. No licensing mess. Excellent documentation in clear English. Lots of supported profiles. Azio earned an A. Avantree and CingLink earned an F.
One more thing. Windows 7's default driver for Bluetooth is minimal. Support gets much better under later Windows versions. The Azio includes very complete drivers (from chip manufacturer CSR) that support many more profiles than the default which run fine under Windows 7. I tried using this latest CSR Harmony software on a Cinglink dongle that came with BlueSoleil. That also used a CSR manufactured chip, but Harmony wouldn't run and complained it was not licensed. Harmony runs fine with this Azio Adapter. Beware also some adapters such as those by Creative and Sennheiser which may talk AptX, but don't bring support for all the full suite of Bluetooth profiles you would like to add to your PC. Those may look a USB audio device to the PC, not a full Bluetooth Adapter such as the Azio.
For the few occasions where your BT device won't seem to connect to your PC and assuming you've already paired your device; do this: 1) Open the Control Panel. 2) Right-Click on "Bluetooth Devices" and select "Create Shortcut" via the context menu and note where you put it. 3) Click on your newly created BT shortcut; then after it opens... 4) Click on your device, then in the next window click on A2DP and let that run. When it's done, typically the device will make an audible sound and/or a pop-up with show stating that your device is now connected. Keep this BT shortcut handy and follow the above steps/clicks if needed in the future.
NOTE: this process has worked with 2 different Android Phones and 4 different pairs of headphones and on a Win7 and Win8.1 PC.
2nd NOTE: Re-Pairing the device will work also as another alternative albeit a bit more time consuming.