Hello,
I am trying to use the microphone array of an Playstation Eye usb device. The problem is that the only valid sample rate seems to be 16kHz, even though the usb device(according to the vendor's site) should support sampling rates up to 48kHz.
I would have two questions:
1. I would like to try to modify the driver to make 48kHz as a supported rate. Could this be dangerous for the hardware, or if I will add an unsupported rate in the driver, the device will simply not work?
2. I'm not familiar with the "under the hood" aspects of ALSA, and I've started reading* Writing an ALSA Driver by Takashi Iwai.* From what I can tell, I would have to modify the snd-usb-audio driver, is this a correct assumption?(The data on which this assumption is made is presented below)*
arecord --list-devices **** List of CAPTURE Hardware Devices **** ..... card 2: CameraB409241 [USB Camera-B4.09.24.1], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0
* lsusb -s 1:3 Bus 001 Device 003: ID 1415:2000 Nam Tai E&E Products Ltd. or OmniVision Technologies, Inc. Sony Playstation Eye
lsusb -t .... /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci_hcd/6p, 480M |__ Port 4: Dev 3, If 0, Class=vend., Driver=ov534, 480M |__ Port 4: Dev 3, If 1, Class=audio, Driver=snd-usb-audio, 480M |__ Port 4: Dev 3, If 2, Class=audio, Driver=snd-usb-audio, 480M
Best Regards, Michael