On Sat, 2 Aug 2014 23:59:18 -0700
chris hermansen <clhermansen@xxxxxxxxx> wrote:
> Adam, list;
>
> On Aug 2, 2014 11:13 PM, "Adam Khan" <trinsnet@xxxxxxxxx> wrote:
> >
> > Hello,
> >
> > I'm trying to get an AudioQuest DragonFly v1.0 DAC to work from
> > mplayer2
> with ALSA.
> >
> > uname -srv
> > Linux 3.14-2-amd64 #1 SMP Debian 3.14.13-2 (2014-07-24)
> >
> > dmesg after plugging in the device:
> > [85853.148104] usb 4-2: new full-speed USB device number 9 using
> > uhci_hcd [85853.542494] usb 4-2: New USB device found,
> > idVendor=21b4,
> idProduct=0081
> > [85853.542505] usb 4-2: New USB device strings: Mfr=1, Product=2,
> SerialNumber=3
> > [85853.542513] usb 4-2: Product: AudioQuest DragonFly
> > [85853.542519] usb 4-2: Manufacturer: AudioQuest inc.
> > [85853.542525] usb 4-2: SerialNumber: (C) 2011 Wavelength Audio,
> > ltd. [85853.567454] 9:1:1: cannot get freq at ep 0x1
> >
> > aplay -l
> > card 1: DragonFly [AudioQuest DragonFly], device 0: USB Audio [USB
> > Audio] Subdevices: 1/1
> > Subdevice #0: subdevice #0
> >
>
> Adam, I use the AQ Dragonfly just fine with Ubuntu. It worked in
> 13.04, 13.10 and 14.04.
>
> I use it with Guayadeque, which allows specifying the playback chain
> to a reasonable degree.
I looked a bit into Guayadeque, thanks. I took your other suggestion
first and went back to basics with wave and aplay, see results below.
>
> The device I connect to is plughw, because as you note the Dragonfly
> only accepts 24 bit data.
>
> I have never tried > 96kHz but it works fine at 44.1, 48, 88.2 and 96.
>
> I suggest you try the plughw device. Also you might try it with aplay
> and some wav files before you jump into mplayer.
I tested wave files with 'aplay -D plughw:DragonFly <file>.wav'
44.1 kHz, 16 bit signed LE - broken (silence)
48 kHz, 24 bit signed LE - works
88.2 kHz, 24 bit signed LE - broken (silence and intermittent static)
>
> If none of that works for you, I will carefully inspect my
> configuration so that you can tell what is different.
I created the file /etc/modprobe.d/alsa_index.conf and added two lines:
options snd-usb-audio index=0
options snd_hda_intel index=1
I can issue aplay <file>.wav for any file and it works, but the DAC
*always* uses 48 kHz, 24 bit regardless of the input format so
something is resampling, which I do not want.
>
> Good luck!
Thank you. Which kernel are you using? I can test with an Ubuntu Live
USB instance to see if the DAC behaves any differently.
Here is output from lsusb -v
(it does list 4 sampling rates):
Bus 004 Device 005: ID 21b4:0081
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x21b4
idProduct 0x0081
bcdDevice 1.0c
iManufacturer 1 AudioQuest inc.
iProduct 2 AudioQuest DragonFly
iSerial 3 (C) 2011 Wavelength Audio, ltd.
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 131
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 200mA
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 5
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 7
bSourceID 5
bControlSize 2
bmaControls( 0) 0x01
bmaControls( 0) 0x00
Mute Control
bmaControls( 1) 0x02
bmaControls( 1) 0x00
Volume Control
bmaControls( 2) 0x02
bmaControls( 2) 0x00
Volume Control
iFeature 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 8
wTerminalType 0x0301 Speaker
bAssocTerminal 0
bSourceID 7
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 2
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
bDelay 1 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 20
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 5
bDelay 1 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 20
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 3
bBitResolution 24
bSamFreqType 4 Discrete
tSamFreq[ 0] 44100
tSamFreq[ 1] 48000
tSamFreq[ 2] 88200
tSamFreq[ 3] 96000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x024c 1x 588 bytes
bInterval 1
bRefresh 0
bSynchAddress 131
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x01
Sampling Frequency
bLockDelayUnits 0 Undefined
wLockDelay 0 Undefined
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0003 1x 3 bytes
bInterval 1
bRefresh 5
bSynchAddress 0
Device Status: 0x0001
Self Powered
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