Re: [LAD] JACK on Gigaport HD+ at 4800kHz (reduced channel count)

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To: Clemens Ladisch <clemens@...>, The Linux Audio Developers' Mailing List <linux-audio-dev@...>
Date: Tuesday, February 25, 2014 - 10:08 pm

hi clemens, thanks for your help.

On 02/25/2014 02:23 PM, Clemens Ladisch wrote:

see below. i'd be interested to hear what you find.

>> When I try to start it at 48k, it comes up ok but ends up running at 44k1. It shows 8 channels, so that's expected.

~ # speaker-test -D hw:1 -c 6 -r 48000

speaker-test 1.0.27.2

Playback device is hw:1
Stream parameters are 48000Hz, S16_LE, 6 channels
Using 16 octaves of pink noise
Channels count (6) not available for playbacks: Invalid argument
Setting of hwparams failed: Invalid argument

so the issue appears to be at the ALSA level, not with JACK.
btw, the same happens with 48k/8ch (which is out of spec according to
ESI), but also with 96k/2ch, which should be supported.

btw, the card claims 24bit support (whatever that is worth in this price
range), but i find i cannot specify 24bit int, only S16_*, float, and
S32_* - am i misunderstanding this option, or does it not represent
24bit fixed-point?

what is the best way to pursue this further?

thanks,

jörn

Bus 002 Device 011: ID 2573:0009
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x2573
idProduct 0x0009
bcdDevice 1.00
iManufacturer 1 ESI Audiotechnik GmbH
iProduct 2 GIGAPort HD+
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 116
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 250mA
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 46
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 8
wChannelConfig 0x00ff
Left Front (L)
Right Front (R)
Center Front (C)
Low Freqency Enhancement (LFE)
Left Surround (LS)
Right Surround (RS)
Left of Center (LC)
Right of Center (RC)
iChannelNames 0
iTerminal 0
AudioControl Interface Descriptor:
bLength 16
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 2
bSourceID 1
bControlSize 1
bmaControls( 0) 0x00
bmaControls( 1) 0x03
Mute Control
Volume Control
bmaControls( 2) 0x03
Mute Control
Volume Control
bmaControls( 3) 0x03
Mute Control
Volume Control
bmaControls( 4) 0x03
Mute Control
Volume Control
bmaControls( 5) 0x03
Mute Control
Volume Control
bmaControls( 6) 0x03
Mute Control
Volume Control
bmaControls( 7) 0x03
Mute Control
Volume Control
bmaControls( 8) 0x03
Mute Control
Volume Control
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 1 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 8
bSubframeSize 2
bBitResolution 16
bSamFreqType 1 Discrete
tSamFreq[ 0] 44100
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x0360 1x 864 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x01
Sampling Frequency
bLockDelayUnits 0 Undefined
wLockDelay 0 Undefined
Device Status: 0x0000
(Bus Powered)

--
Jörn Nettingsmeier
Lortzingstr. 11, 45128 Essen, Tel. +49 177 7937487

Meister für Veranstaltungstechnik (Bühne/Studio)
Tonmeister VDT

http://stackingdwarves.net

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Messages in current thread:
[LAD] JACK on Gigaport HD+ at 4800kHz (reduced channel count), Jörn Nettingsmeier, (Mon Feb 24, 10:35 pm)
Re: [LAD] JACK on Gigaport HD+ at 4800kHz (reduced channel c..., Jörn Nettingsmeier, (Tue Feb 25, 10:08 pm)
Re: [LAD] JACK on Gigaport HD+ at 4800kHz (reduced channel c..., Jörn Nettingsmeier, (Tue Feb 25, 1:25 pm)