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AN295: USB Audio Class Tutorial - Silicon Labs
https://www.silabs.com/documents/public/application-notes/AN295.pdf
Input Terminal Audio Class Descriptor Describes audio control data traveling from host to device. Feature Unit Audio Class Descriptor Lists controls (volume, muting, etc.) associated with the above terminal. Output Terminal Audio Class Descriptor Describes the audio data traveling out of the device and into the host.
Universal Serial Bus Device Class Definition for Audio …
https://www.usb.org/sites/default/files/audio10.pdf
Universal Serial Bus Device Class Definition for ... Release 1.0 March 18, 1998. USB Device Class Definition for Audio Devices Release 1.0 March 18, 1998 ii Scope of This Release This document is the 1.0 release of this device class definition. Contributors ... First Form of the Volume Control Parameter Block.....76 Table 5-19: Second Form of ...
USB Audio 2.0 Drivers - Windows drivers | Microsoft Docs
https://docs.microsoft.com/en-us/windows-hardware/drivers/audio/usb-2-0-audio-drivers
Starting in Windows 10 release 1703, IHVs that create USB Audio Class 2.0 devices having one or more jacks have the capability to describe these jacks to the in-box Audio Class 2.0 driver. The in-box driver uses the supplied jack information when handling the KSPROPERTY_JACK_DESCRIPTION for this device.
Fundamentals of USB Audio - EDN
https://www.edn.com/fundamentals-of-usb-audio/
Once a device is USB Audio Class compliant, it will integrate neatly into the operating system. Figure 3 shows a screenshot of the controls of a USB Audio device plugged into Mac OS/X. It shows that the clock selection, sample rate selection, channel volume control, and mute control are all controllable just like for any other audio device.
Audio/Video Device Class v1.0 Spec and Adopters ... - …
https://www.usb.org/document-library/audiovideo-device-class-v10-spec-and-adopters-agreement
Audio/Video Device Class v1.0 Spec and Adopters Agreement 12/07/2011 The USB Audio/Video (AV) Device Class Definition describes the methods used to communicate with devices or functions embedded in composite devices that are used to manipulate audio, video, voice, and all image- and sound-related functionality.
No volume control for USB Audio Codec recording device ...
https://answers.microsoft.com/en-us/windows/forum/all/no-volume-control-for-usb-audio-codec-recording/cd91ff29-1255-4222-93a4-f45edcaa3df5
No volume control for USB Audio Codec recording device I'm not sure if this is a Windows XP issue, a driver issue, or an issue with the software I am using. I recently purchased an ION TTUSB10 turntable and am trying to use the Audacity software which came with it to record from some of my old vinyl for transfer to MP3 files. ...
driver - How to set the volume of a USB soundcard? - …
https://stackoverflow.com/questions/13367677/how-to-set-the-volume-of-a-usb-soundcard
This will open up a terminal-friendly GUI for modifying the audio output volume. You should see the Raspberry Pi onboard audio driver BCM2835 and associated devices alongside your USB audio. Alternatively, you can set the volume with a simple amixer command: $ amixer -c 0 set Master 100%. which sets the volume of card 0 to 100%.
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