3/24/2023 0 Comments Audiodevice arduinoBut this code seems to run full speed, not in sync with USB Audio device. When I see this code, running in endless loop, to read and write USB buffer (with Audio samples) - how does it synchronize with USB? Actually, every 1 ms a sample buffer is ready or due to be sent. I am also a bit confused about the "flow control": How to see that this USB Audio is working? At least I want to see my buffers filled with data come in on host (working as an USB Audio Input on host, like a microphone). How to setup a second, separate USB connection for USB Audio? (not losing USB-C UART, using user USB-A on breakout is file) Who does have any luck or experience on this topic? Instead: put the USB Audio on the breakout board USB-A connector. I would not be able to live with this drawback. So, I lose control to the board, I cannot talk to Portenta H7 via USB-C anymore.Ī bit obvious (reconfiguring the USB-C now just and only for USB Audio) - but not nice. It uses also USB-C.īut instead: it uses also the USB-C connection. And I need a second USB cable to connect my USB Audio with host. To make it work, you need to plug the headset in your left year and then start increasing the volume until you hear a sound. I thought, this USB Audio comes out on the user USB, the breakout USB-A connector. My guess: Portenta H7 does not receive and does not send anything, after USB enumeration was OK. It looks like the audio device on Portenta H7 does not send anything. I do not see my values expected as 0x1F1F (constant DC value filled). ![]() No data is transferred: I use tool Audacity to record or play sound. It looks to me: other than 44.1 KHz fails already on enumeration (guessing due to a different set of USB descriptors needed and Ardunio code is not generating/not sending it for other sample rates properly). When 48 KHz is tried - I do not see anymore the sample frequency settings in the Windows audio drivers. Being able to map a key within xbmc to change the audio output device would also work and Ive found a way to map a key to change the audio output between analog, hdmi, and optical, but nothing to switch the actual output device. Old Sound library configuration class, deprecated. It looks like I can only chose 44.1 KHz in Portenta H7 code. If I could use this tool and force xbmc to use windows default audio device that would be perfect. AudioDevice (Javadocs: Processing Sound) Package processing.sound Class AudioDevice public class AudioDevice extends Deprecated. I can see the input (microphone) as well as the output (speaker) as an " Mbed Audio" device enumerated. I do this in my sketch: USBAudio audio(true, 44100, 2, 44100, 2) I try to use this USBAudio (marked as " experimental" in comments). I copied the files "USBAudio.h" and "USBAudio.cpp" under my project - compile it - and it is compile clean. After checking the left ear, you will need to check the right one. The display will give you all the info required. When you hear the sound, you need to press the knob that will allow you to check on the next frequency. ![]() " USBAudio.h", " PluggableAudioAudio.h" and " USBAudio.cpp". To make it work, you need to plug the headset in your left year and then start increasing the volume until you hear a sound. Methods: start(): Starts the input stream. I try to use Portenta with USB as an USB Audio device. AudioIn Constructor: AudioIn(theParent, in) Description: Audio Device allows for configuring the audio server.
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