Hi Adam and list,
On Aug 3, 2014 11:11 PM, "Adam Khan" <trinsnet@xxxxxxxxx> wrote:
>
>
> 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
I will get you details in my morning about 9 hours hence.
Stay tuned...
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