How to record audio from Microphone? - pandaboard

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Message from discussion How to record audio from Microphone?

Ashwani Kumar

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More options Jul 18 2011, 3:39 am

From: Ashwani Kumar <ash1...@gmail.com>

Date: Mon, 18 Jul 2011 13:09:06 +0530

Local: Mon, Jul 18 2011 3:39 am

Subject: Re: [pandaboard] Re: How to record audio from Microphone?

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I think it could be possible because inside headset mic have electret mic.

On Mon, Jul 18, 2011 at 12:52 PM, Surya <sury...@gmail.com> wrote:
> Thanks Ashwani i will try with Electret mic, just one more question is
> recording possible with normal headset mic on pandaboard ?

> Thanks,
> -Surya

> On Jul 18, 10:07 am, Ashwani Kumar <ash1...@gmail.com> wrote:
> > I use below amixer settings:

> > amixer cset name='Analog Right Capture Route' 0
> > amixer cset name='Analog Left Capture Route' 0
> > amixer cset name='Capture Preamplifier Volume' 1
> > amixer cset name='Capture Volume' 4
> > amixer cset name='MUX_UL00' 10
> > amixer cset name='MUX_UL01' 9
> > amixer cset name='MUX_UL10' 10
> > amixer cset name='MUX_UL11' 9
> > amixer cset name='AMIC_UL PDM Switch' 1
> > amixer cset name='MUX_VX0' 10
> > amixer cset name='MUX_VX1' 9
> > amixer cset name='Voice Capture Mixer Capture' 1

> > for record:
> > arecord -Dplughw:0,0 test.wav

> > & play:
> > aplay -Dplughw:0,9 test.wav

> > tested with PC speaker out connect to mic in (pandaboard) and Electret
> mic
> > with biasing resistor.

> > Regards
> > Ashwani

> > On Sat, Jul 16, 2011 at 12:32 PM, Surya <sury...@gmail.com> wrote:
> > > Hi,

> > > I am also facing the same problem with audio Input, i am not able to
> > > record audio with mic even after using 1K biasing resistor

> > > Ashwani can you please share amixer settings and which mic you used.

> > > Line in is working with the amixer settings which is shared by David.

> > > Thanks,
> > > -Surya

> > > On May 31, 9:59 pm, Ashwani <ash1...@gmail.com> wrote:
> > > > Audio recording on pandaboard are working with ordinarymicalso. I
> > > > use 1K biasing resistor. Now anymicwe can use with pandaboard.

> > > > regards
> > > > Ashwani

> > > > On May 11, 1:22 pm, "Bercovitz, David" <d-bercov...@ti.com> wrote:

> > > > > Ashwani, I'm posting your question on the Pandaboard mailing list
> as I
> > > don't
> > > > > know this answer.

> > > > > Regards
> > > > > David

> > > > > 2011/5/11 Ashwani Kumar <ash1...@gmail.com>

> > > > > > Thanks David.

> > > > > > I tried with iball <http://iball.co.in/Product.aspx> microphone
> but
> > > its
> > > > > > is not working. may be the gain issue.
> > > > > > does monomicrequire preamp?

> > > > > > or any suggested monomic...

> > > > > > Regards
> > > > > > Ashwani

> > > > > > On Wed, May 11, 2011 at 1:36 PM, Bercovitz, David <
> > > d-bercov...@ti.com>wrote:

> > > > > >> Ashwani, The issue still exists on latest h/w. The only solution
> is
> > > to
> > > > > >> record in mono and have the cable only wired in mono otherwise
> the 2
> > > lines
> > > > > >> will be mixed up.
> > > > > >> Regards
> > > > > >> David

> > > > > >> 2011/5/10 Ashwani Kumar <ash1...@gmail.com>

> > > > > >>> I am using
> > > > > >>> PandaBoard RevA3
> > > > > >>> Assy: 750-2152-021(A)
> > > > > >>> S/N: 1311PANDA421

> > > > > >>> I think that is latest version:
> > > > > >>>http://www.omappedia.org/wiki/PandaBoard_Revisions.

> > > > > >>> please confirm.

> > > > > >>> Regards
> > > > > >>> Ashwani

> > > > > >>> On Tue, May 10, 2011 at 1:35 PM, Bercovitz, David <
> > > d-bercov...@ti.com>wrote:

> > > > > >>>> I recall there was an H/W issue recording stereo input:
> > > > > >>>>http://omapedia.org/wiki/PandaBoard_Errata
> > > > > >>>> If you are using a more recent revision of the EA1 boards,
> I'll
> > > have to
> > > > > >>>> go and check if the H/W has been fixed. Let me know.

> > > > > >>>> Regards
> > > > > >>>> David

> > > > > >>>> 2011/5/10 Ashwani Kumar <ash1...@gmail.com>

> > > > > >>>>> Thanks David for your prompt reply.

> > > > > >>>>> My kernel version is "2.6.35-903-omap4" and filesystem is
> > > "Ubuntu
> > > > > >>>>> 10.10".

> > > > > >>>>> *Test Setup:*
> > > > > >>>>> > I am using the audio output of PC connected to audio input
> (top
> > > > > >>>>> connector) on Pandaboard.

> > > > > >>>>> > running audio on-the-fly gstreamer pipeline:
> > > > > >>>>> gst-launch-0.10 alsasrc ! audio/x-raw-int, endianness=1234,
> > > > > >>>>> signed=true, width=16, depth=16, rate=16000, channels=2 !
> > > alsasink

> > > > > >>>>> >I am getting distorted sound with high noise.

> > > > > >>>>> *p.s. Here more details on my current configuration: *
> > > > > >>>>> ubuntu@ubuntu-desktop:~$ aplay -l

> > > > > >>>>> **** List of PLAYBACK Hardware Devices ****
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 0: Multimedia
> null-codec-dai-0
> > > []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 2: Voice null-codec-dai-2
> []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 3: Tone Playback
> > > null-codec-dai-3 []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 4: VIB-DL null-codec-dai-4
> []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 5: MODEM null-codec-dai-5
> []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 6: Multimedia
> null-codec-dai-6
> > > []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 7: HDMI HDMI-7 []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 8: Multimedia FM Digital-8
> []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 9: Headset Playback
> > > twl6040-dl1-9 []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 11: HS Playback
> twl6040-dl1-11
> > > []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 13: HF Playback
> twl6040-dl2-13
> > > []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 14: Vibra twl6040-vib-14 []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 15: BT Bluetooth-15 []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 16: FM FM Digital-16 []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 17: MODEM MODEM-17 []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0

> > > > > >>>>> *

> > > **********************************************************************
> > > > > >>>>> *

> > > > > >>>>> ubuntu@ubuntu-desktop:~$ arecord -l

> > > > > >>>>> **** List of CAPTURE Hardware Devices ****
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 0: Multimedia
> null-codec-dai-0
> > > []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 1: Multimedia Capture
> > > > > >>>>> null-codec-dai-1 []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 2: Voice null-codec-dai-2
> []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 5: MODEM null-codec-dai-5
> []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 8: Multimedia FM Digital-8
> []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 10: DMIC Capture
> dmic-hifi-10
> > > []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 12: Analog Capture
> > > twl6040-ul-12 []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 15: BT Bluetooth-15 []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 16: FM FM Digital-16 []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 17: MODEM MODEM-17 []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 18: DMIC0 dmic-hifi-18 []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 19: DMIC1 dmic-hifi-19 []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0
> > > > > >>>>> card 0: SDP4430 [SDP4430], device 20: DMIC2 dmic-hifi-20 []
> > > > > >>>>> Subdevices: 1/1
> > > > > >>>>> Subdevice #0: subdevice #0

> > > > > >>>>> *

> > > **********************************************************************
> > > > > >>>>> *

> > > > > >>>>> ubuntu@ubuntu-desktop:~$ amixer contents -c0
> > > > > >>>>> numid=59,iface=MIXER,name='Aux FM Volume'

> > > > > >>>>> ; type=INTEGER,access=rw---R--,values=2,min=0,max=15,step=0
> > > > > >>>>> : values=11,0

> > > > > >>>>> | dBscale-min=6.00dB,step=6.00dB,mute=0
> > > > > >>>>> numid=33,iface=MIXER,name='Capture Mixer Media Playback'

> > > > > >>>>> ; type=BOOLEAN,access=rw------,values=1
> > > > > >>>>> : values=off
> > > > > >>>>> numid=30,iface=MIXER,name='Capture Mixer Tones'

> > > > > >>>>> ; type=BOOLEAN,access=rw------,values=1
> > > > > >>>>> : values=off
> > > > > >>>>> numid=32,iface=MIXER,name='Capture Mixer Voice Capture'

> > > > > >>>>> ; type=BOOLEAN,access=rw------,values=1
> > > > > >>>>> : values=off
> > > > > >>>>> numid=31,iface=MIXER,name='Capture Mixer Voice Playback'

> > > > > >>>>> ; type=BOOLEAN,access=rw------,values=1
> > > > > >>>>> : values=off
> > > > > >>>>> numid=57,iface=MIXER,name='Capture Preamplifier Volume'

> > > > > >>>>> ; type=INTEGER,access=rw---R--,values=2,min=0,max=1,step=0
> > > > > >>>>> : values=1,1
> > > > > >>>>> | dBscale-min=-6.00dB,step=6.00dB,mute=0
> > > > > >>>>> numid=58,iface=MIXER,name='Capture Volume'

> > > > > >>>>> ; type=INTEGER,access=rw---R--,values=2,min=0,max=4,step=0
> > > > > >>>>> : values=4,4

> > > > > >>>>> | dBscale-min=6.00dB,step=6.00dB,mute=0
> > > > > >>>>> numid=22,iface=MIXER,name='AMIC Equalizer Profile'
> > > > > >>>>> ; type=ENUMERATED,access=rw------,values=1,items=3
> > > > > >>>>> ; Item #0 'High-pass with 20kHz cut-off frequency. Gain =
> 1'
> > > > > >>>>> ; Item #1 'High-pass with 20kHz cut-off frequency. Gain =
> 0.25'
> > > > > >>>>> ; Item #2 'High-pass with 20kHz cut-off frequency. Gain =
> > > 0.125'
> > > > > >>>>> : values=0
> > > > > >>>>> numid=24,iface=MIXER,name='AMIC_UL MM_EXT Switch'

> > > > > >>>>> ;

> > ...

> > read more »- Hide quoted text -

> > - Show quoted text -

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