Hello all!
I got a Microcone USB sound Device. According to the web page
(http://www.dev-audio.com/support/linux/) it should work with Linux. I
only got it to work with Ubuntu 12.04. Now I am using Fedora 20 and also
want the Microcone to work with Pidora or Raspian. On Ubuntu 14.04 it
also does not work.
On all these 4 systems I have the same troubles with the Microcone device:
Recording 1 second of audio takes 2 seconds. The resulting WAV file has
a duration of 1 second and is distorted. It sounds like being played
double time. An example recording can be found at
http://www.itbh.at/data/test.wav
I don't see the difference between the Ubuntu 12.04 ALSA configuration
and my current ALSA configuration (except the ALSA version).
Can anyone please give me a hint how to deal with this issue?
See below my ALSA version and configuration as well as how the Microcone
is detected.
Thank you very much and kind regards,
Christoph
1 Fedora 20
═══════════
1.1 Kernel
──────────
┌────
│ uname -a
│
│ Linux funky-thinkpad 3.17.3-200.fc20.x86_64 #1 SMP Fri Nov 14
19:45:42 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
└────
1.1.1 Loaded modules
╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌
┌────
│ lsmod | grep -i snd
│
│ snd_usb_audio 161252 1
│ snd_usbmidi_lib 29855 1 snd_usb_audio
│ snd_rawmidi 29794 1 snd_usbmidi_lib
│ snd_hda_codec_hdmi 51866 1
│ snd_hda_codec_conexant 22962 1
│ snd_hda_codec_generic 67662 1 snd_hda_codec_conexant
│ snd_hda_intel 30479 4
│ snd_hda_controller 30786 1 snd_hda_intel
│ snd_hda_codec 131444 5
snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller
│ snd_hwdep 17650 2 snd_usb_audio,snd_hda_codec
│ snd_seq 62266 0
│ snd_seq_device 14136 2 snd_seq,snd_rawmidi
│ snd_pcm 104333 5
snd_usb_audio,snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller
│ snd_timer 28778 2 snd_pcm,snd_seq
│ snd 75905 26
snd_usb_audio,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_usbmidi_lib,snd_hda_codec,snd_hda_intel,thinkpad_acpi,snd_seq_device
│ soundcore 14491 2 snd,snd_hda_codec
└────
1.2 ALSA version
────────────────
┌────
│ cat /proc/asound/version
│
│ Advanced Linux Sound Architecture Driver Version
k3.17.3-200.fc20.x86_64.
└────
┌────
│ arecord --version
│
│ arecord: version 1.0.27.2 by Jaroslav Kysela <pe...@perex.cz>
└────
1.3 Capture Devices
───────────────────
┌────
│ arecord -l
│
│ Karte 0: PCH [HDA Intel PCH], Gerät 0: CX20590 Analog [CX20590 Analog]
│ Sub-Geräte: 1/1
│ Sub-Gerät #0: subdevice #0
│ Karte 1: Microcone [Microcone], Gerät 0: USB Audio [USB Audio]
│ Sub-Geräte: 1/1
│ Sub-Gerät #0: subdevice #0
└────
┌────
│ arecord -L
│
│ null
│ Discard all samples (playback) or generate zero samples (capture)
│ pulse
│ PulseAudio Sound Server
│ default
│ Default ALSA Output (currently PulseAudio Sound Server)
│ sysdefault:CARD=PCH
│ HDA Intel PCH, CX20590 Analog
│ Default Audio Device
│ front:CARD=PCH,DEV=0
│ HDA Intel PCH, CX20590 Analog
│ Front speakers
│ surround40:CARD=PCH,DEV=0
│ HDA Intel PCH, CX20590 Analog
│ 4.0 Surround output to Front and Rear speakers
│ surround41:CARD=PCH,DEV=0
│ HDA Intel PCH, CX20590 Analog
│ 4.1 Surround output to Front, Rear and Subwoofer speakers
│ surround50:CARD=PCH,DEV=0
│ HDA Intel PCH, CX20590 Analog
│ 5.0 Surround output to Front, Center and Rear speakers
│ surround51:CARD=PCH,DEV=0
│ HDA Intel PCH, CX20590 Analog
│ 5.1 Surround output to Front, Center, Rear and Subwoofer speakers
│ surround71:CARD=PCH,DEV=0
│ HDA Intel PCH, CX20590 Analog
│ 7.1 Surround output to Front, Center, Side, Rear and Woofer
speakers
│ sysdefault:CARD=Microcone
│ Microcone, USB Audio
│ Default Audio Device
│ front:CARD=Microcone,DEV=0
│ Microcone, USB Audio
│ Front speakers
│ surround40:CARD=Microcone,DEV=0
│ Microcone, USB Audio
│ 4.0 Surround output to Front and Rear speakers
│ surround41:CARD=Microcone,DEV=0
│ Microcone, USB Audio
│ 4.1 Surround output to Front, Rear and Subwoofer speakers
│ surround50:CARD=Microcone,DEV=0
│ Microcone, USB Audio
│ 5.0 Surround output to Front, Center and Rear speakers
│ surround51:CARD=Microcone,DEV=0
│ Microcone, USB Audio
│ 5.1 Surround output to Front, Center, Rear and Subwoofer speakers
│ surround71:CARD=Microcone,DEV=0
│ Microcone, USB Audio
│ 7.1 Surround output to Front, Center, Side, Rear and Woofer
speakers
│ iec958:CARD=Microcone,DEV=0
│ Microcone, USB Audio
│ IEC958 (S/PDIF) Digital Audio Output
└────
2 Recording
═══════════
Recording 1s takes 2s real time. The recorded WAV file has a duration
of 1s and is distorted. The speed is nearly double time.
┌────
│ date;arecord -D hw:1,0 -f S32_LE -r 48000 --duration 1s --channels
8 test.wav;date
│
│ Son Nov 23 16:43:13 CET 2014
│ Aufnahme: WAVE 'test.wav' : Signed 32 bit Little Endian, Rate:
48000 Hz, 8 Kanäle
│ Son Nov 23 16:43:15 CET 2014
└────
------------------------------------------------------------------------------
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