Turn on the accessory device, if it is a playback device such as a DVD Player or Recorder insert a pre-recorded DVD, and press Play button. Turn on the TV and press the V+ button on the remote control repeatedly to select HDMI and press the OK button to confirm your selection.
May 17, 2016 There is no need to go to device manager to install the driver in a compatibility mode. Follow these steps to install the drivers in compatibility mode and check if that helps. Download the driver from the manufacturer’s website. Right-click on the driver setup file and click on ‘properties’. Philips SpeechControl Device and Application Control Software gives you full control over your hardware devices. The software allows you to customize the physical buttons of your SpeechMike dictation microphone, the pedals of your foot control, as well as the application actions within your workflow and speech recognition solution. Philips SpeechControl Device and Application Control Software gives you full control over your hardware devices. The software allows you to customize the physical buttons of your SpeechMike dictation microphone, the pedals of your foot control, as well as the application actions within your workflow and speech recognition solution. An unknown device will feature a small warning triangle overlaying the device-type icon. If Windows thinks a device is broken or non-responsive, you'll see a red icon overlay, instead. If you discover a warning, install the correct driver before updating by right-clicking the unknown device.
The TV Input Framework (TIF) manager works with the audio routing API to support flexible audiopath changes. When a System on Chip (SoC) implements the TV hardware abstraction layer (HAL), eachTV input (HDMI IN, Tuner, etc.) provides TvInputHardwareInfo that specifies AudioPort information for audio type and address.
- Physical audio input/output devices have a corresponding AudioPort.
- Software audio output/input streams are represented as AudioMixPort (child class ofAudioPort).
The TIF then uses AudioPort information for the audio routing API.
Figure 1. TV Input Framework (TIF)
Philips Port Devices Driver
Requirements
Philips Port Devices Driver Scanner
A SoC must implement the audio HAL with the following audio routing API support:
| Audio Ports |
|
|---|---|
| Default Input | AudioRecord (created with DEFAULT input source) must seize virtual null input source forAUDIO_DEVICE_IN_DEFAULT acquisition on Android TV. |
| Device Loopback | Requires supporting an AUDIO_DEVICE_IN_LOOPBACK input that is a complete mix of all audio outputof all the TV output (11Khz, 16bit mono or 48Khz, 16bit mono). Used only for audio capture. |
TV audio devices
Android supports the following audio devices for TV audio input/output.
system/media/audio/include/system/audio.h
Note: In Android 5.1 and earlier, the path tothis file is: system/core/include/system/audio.h
Audio HAL extension
Philips Port Devices Driver Device
The Audio HAL extension for the audio routing API is defined by following:
system/media/audio/include/system/audio.h
Note: In Android 5.1 and earlier, the path tothis file is: system/core/include/system/audio.h
hardware/libhardware/include/hardware/audio.h
Testing DEVICE_IN_LOOPBACK
To test DEVICE_IN_LOOPBACK for TV monitoring, use the following testing code. After running thetest, the captured audio saves to /sdcard/record_loopback.raw, where you can listen toit using FFmpeg.
Locate the captured audio file in /sdcard/record_loopback.raw and listen to it usingFFmpeg:
Use cases
This section includes common use cases for TV audio.
TV tuner with speaker output
When a TV tuner becomes active, the audio routing API creates an audio patch between the tunerand the default output (e.g. the speaker). The tuner output does not require decoding, but finalaudio output is mixed with software output_stream.
Figure 2. Audio Patch for TV tuner with speaker output.
HDMI OUT during live TV
A user is watching live TV then switches to the HDMI audio output (Intent.ACTION_HDMI_AUDIO_PLUG). The output device of all output_streams changes to the HDMI_OUT port, and the TIF manager changesthe sink port of the existing tuner audio patch to the HDMI_OUT port.
Figure 3. Audio Patch for HDMI OUT from live TV.