我正在尝试通过 USB 让 Bose Revolve Soundlink 工作（蓝牙和 AUX 工作正常）。在 Windows 上通过 USB 使用它也可以正常工作。
扬声器被正常检测到，但是当我更换到正确的输出设备时却没有声音。
我有两个输出配置文件可以在pavucontrol“模拟立体声”和“数字立体声 (IEC958)”之间切换。它们都不起作用。
$ cat /proc/asound/cards
0 [NVidia ]: HDA-Intel - HDA NVidia
HDA NVidia at 0xf7080000 irq 67
1 [Generic ]: HDA-Intel - HD-Audio Generic
HD-Audio Generic at 0xf7700000 irq 69
2 [SoundLink ]: USB-Audio - Bose Revolve SoundLink
Bose Corporation Bose Revolve SoundLink at usb-0000:02:00.0-10, full speed
来自 dmesg：
[ 5287.800381] usb 1-10: new full-speed USB device number 10 using xhci_hcd
[ 5288.137063] usb 1-10: New USB device found, idVendor=05a7, idProduct=40fa
[ 5288.137067] usb 1-10: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 5288.137069] usb 1-10: Product: Bose Revolve SoundLink
[ 5288.137072] usb 1-10: Manufacturer: Bose Corporation
[ 5288.137074] usb 1-10: SerialNumber: Q73160860107429561A0210
[ 5288.197492] input: Bose Corporation Bose Revolve SoundLink as /devices/pci0000:00/0000:00:01.3/0000:02:00.0/usb1/1-10/1-10:1.2/0003:05A7:40FA.0009/input/input36
从lsusb
Bus 001 Device 010: ID 05a7:40fa Bose Corp.
Couldn't open device, some information will be missing
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2 ?
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x05a7 Bose Corp.
idProduct 0x40fa
bcdDevice 1.00
iManufacturer 1
iProduct 2
iSerial 3
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 156
bNumInterfaces 3
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xc0
Self Powered
MaxPower 500mA
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 2
bFunctionClass 1 Audio
bFunctionSubClass 1 Control Device
bFunctionProtocol 0
iFunction 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 0
iInterface 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
wTotalLength 43
bInCollection 1
baInterfaceNr( 0) 1
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bNrChannels 2
wChannelConfig 0x0003
Left Front (L)
Right Front (R)
iChannelNames 0
iTerminal 0
AudioControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 2
bSourceID 1
bControlSize 2
bmaControls( 0) 0x03
bmaControls( 0) 0x00
Mute Control
Volume Control
bmaControls( 1) 0x00
bmaControls( 1) 0x00
bmaControls( 2) 0x00
bmaControls( 2) 0x00
iFeature 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 3
wTerminalType 0x0301 Speaker
bAssocTerminal 0
bSourceID 2
iTerminal 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 1
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 14
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 2
bBitResolution 16
bSamFreqType 2 Discrete
tSamFreq[ 0] 48000
tSamFreq[ 1] 44100
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x81
Sampling Frequency
MaxPacketsOnly
bLockDelayUnits 0 Undefined
wLockDelay 0 Undefined
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x00c0 1x 192 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0 No Subclass
bInterfaceProtocol 0 None
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 126
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
我已尝试重新启动。
任何帮助都将受到赞赏。
答案1
对于遇到同样问题的人，我解决了自己的问题。
编辑/etc/pulse/daemon.conf并添加：
default-sample-format = s16le
default-sample-rate = 48000
我认为这里最重要的部分是将采样率设置为 48000。
另一个奇怪的提示：选择模拟配置文件后，只有音频确切地100%。一个好的测试方法是运行命令aplay /usr/share/sounds/alsa/Front_Left.wav