[Solved] ffmpeg records no sound

I use the following string to record a video with ffmpeg:
ffmpeg -f alsa -ac 2 -i hw:0,0 -f x11grab -r 30 -s 1920x1080 -i :0.0 -acodec pcm_s16le -vcodec libx264 -preset ultrafast -threads 8 output.mkv
I only have alsa, no PulseAudio or OSS stuff.
I've been trying everything I managed to find through google but nothing seems to work. General sound output works, I can listen to music and do all my stuff like I'm used to, I just can't get ffmpeg to record my sound.
Here are logs from aplay and arecord:
aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
default:CARD=PCH
HDA Intel PCH, ALC898 Analog
Default Audio Device
sysdefault:CARD=PCH
HDA Intel PCH, ALC898 Analog
Default Audio Device
front:CARD=PCH,DEV=0
HDA Intel PCH, ALC898 Analog
Front speakers
surround40:CARD=PCH,DEV=0
HDA Intel PCH, ALC898 Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
HDA Intel PCH, ALC898 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
HDA Intel PCH, ALC898 Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
HDA Intel PCH, ALC898 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
HDA Intel PCH, ALC898 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=PCH,DEV=0
HDA Intel PCH, ALC898 Digital
IEC958 (S/PDIF) Digital Audio Output
hdmi:CARD=NVidia,DEV=0
HDA NVidia, HDMI 0
HDMI Audio Output
hdmi:CARD=NVidia,DEV=1
HDA NVidia, HDMI 1
HDMI Audio Output
hdmi:CARD=NVidia,DEV=2
HDA NVidia, HDMI 2
HDMI Audio Output
hdmi:CARD=NVidia,DEV=3
HDA NVidia, HDMI 3
HDMI Audio Output
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC898 Analog [ALC898 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 1: ALC898 Digital [ALC898 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3]
Subdevices: 1/1
Subdevice #0: subdevice #0
arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC898 Analog [ALC898 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 2: ALC898 Analog [ALC898 Analog]
Subdevices: 2/2
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
I'm using the latest ffmpeg-git with x264-git. (I compiled it correctly, so I don't think it's a build issue.)
I tried using -i default, -i sysdefault and -i plughw:0,0 instead of -i hw:0,0. I also tried various hw:0,1 etc. combinations, because I was fustrated and didn't know how to continue. I also tried recording only the sound, without the video, but nothing works at all.
Only the video runs perfectly fine. Please help.
Last edited by HitomiTenshi (2013-03-09 17:59:20)

Recording sound directly while playing something works with the following .asoundrc script:
pcm.!default
type file
slave.pcm
type plug
slave.pcm
type hw
card 0
device 0
subdevice -1
file /dev/shm/audio.raw
format raw
I then convert the raw file with ffmpeg from RAM. This is extremely annoying though, because the audio file isn't synced to the video. But IT WORKS. I want a solution with ffmpeg though, I have gathered more information, if somebody is interested:
amixer -c 0 contents
numid=42,iface=CARD,name='Front Headphone Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=44,iface=CARD,name='Front Mic Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=45,iface=CARD,name='Line Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=40,iface=CARD,name='Line Out CLFE Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=38,iface=CARD,name='Line Out Front Jack'
; type=BOOLEAN,access=r-------,values=1
: values=on
numid=41,iface=CARD,name='Line Out Side Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=39,iface=CARD,name='Line Out Surround Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=43,iface=CARD,name='Rear Mic Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=46,iface=CARD,name='SPDIF Phantom Jack'
; type=BOOLEAN,access=r-------,values=1
: values=on
numid=47,iface=CARD,name='SPDIF Phantom Jack',index=1
; type=BOOLEAN,access=r-------,values=1
: values=on
numid=37,iface=MIXER,name='Master Playback Switch'
; type=BOOLEAN,access=rw------,values=1
: values=on
numid=36,iface=MIXER,name='Master Playback Volume'
; type=INTEGER,access=rw---R--,values=1,min=0,max=87,step=0
: values=70
| dBscale-min=-65.25dB,step=0.75dB,mute=0
numid=12,iface=MIXER,name='Headphone Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=on,on
numid=11,iface=MIXER,name='Headphone Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=87,step=0
: values=87,87
| dBscale-min=-65.25dB,step=0.75dB,mute=0
numid=53,iface=MIXER,name='PCM Playback Volume'
; type=INTEGER,access=rw---RW-,values=2,min=0,max=255,step=0
: values=255,255
| dBscale-min=-51.00dB,step=0.20dB,mute=0
numid=21,iface=MIXER,name='Front Mic Boost Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=3,step=0
: values=0,0
| dBscale-min=0.00dB,step=10.00dB,mute=0
numid=16,iface=MIXER,name='Front Mic Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=on,on
numid=15,iface=MIXER,name='Front Mic Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=31,step=0
: values=23,23
| dBscale-min=-34.50dB,step=1.50dB,mute=0
numid=2,iface=MIXER,name='Front Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=on,on
numid=1,iface=MIXER,name='Front Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=87,step=0
: values=87,87
| dBscale-min=-65.25dB,step=0.75dB,mute=0
numid=4,iface=MIXER,name='Surround Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=on,on
numid=3,iface=MIXER,name='Surround Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=87,step=0
: values=87,87
| dBscale-min=-65.25dB,step=0.75dB,mute=0
numid=7,iface=MIXER,name='Center Playback Switch'
; type=BOOLEAN,access=rw------,values=1
: values=on
numid=5,iface=MIXER,name='Center Playback Volume'
; type=INTEGER,access=rw---R--,values=1,min=0,max=87,step=0
: values=87
| dBscale-min=-65.25dB,step=0.75dB,mute=0
numid=8,iface=MIXER,name='LFE Playback Switch'
; type=BOOLEAN,access=rw------,values=1
: values=on
numid=6,iface=MIXER,name='LFE Playback Volume'
; type=INTEGER,access=rw---R--,values=1,min=0,max=87,step=0
: values=87
| dBscale-min=-65.25dB,step=0.75dB,mute=0
numid=18,iface=MIXER,name='Line Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=on,on
numid=17,iface=MIXER,name='Line Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=31,step=0
: values=23,23
| dBscale-min=-34.50dB,step=1.50dB,mute=0
numid=22,iface=MIXER,name='Capture Switch'
; type=BOOLEAN,access=rw------,values=2
: values=on,on
numid=23,iface=MIXER,name='Capture Switch',index=1
; type=BOOLEAN,access=rw------,values=2
: values=off,off
numid=24,iface=MIXER,name='Capture Switch',index=2
; type=BOOLEAN,access=rw------,values=2
: values=off,off
numid=25,iface=MIXER,name='Capture Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=63,step=0
: values=63,63
| dBscale-min=-17.25dB,step=0.75dB,mute=0
numid=26,iface=MIXER,name='Capture Volume',index=1
; type=INTEGER,access=rw---R--,values=2,min=0,max=63,step=0
: values=63,63
| dBscale-min=-17.25dB,step=0.75dB,mute=0
numid=27,iface=MIXER,name='Capture Volume',index=2
; type=INTEGER,access=rw---R--,values=2,min=0,max=63,step=0
: values=63,63
| dBscale-min=-17.25dB,step=0.75dB,mute=0
numid=35,iface=MIXER,name='IEC958 Default PCM Playback Switch'
; type=BOOLEAN,access=rw------,values=1
: values=on
numid=31,iface=MIXER,name='IEC958 Playback Con Mask'
; type=IEC958,access=r-------,values=1
: values=[AES0=0x0f AES1=0xff AES2=0x00 AES3=0x00]
numid=32,iface=MIXER,name='IEC958 Playback Pro Mask'
; type=IEC958,access=r-------,values=1
: values=[AES0=0x0f AES1=0x00 AES2=0x00 AES3=0x00]
numid=33,iface=MIXER,name='IEC958 Playback Default'
; type=IEC958,access=rw------,values=1
: values=[AES0=0x04 AES1=0x00 AES2=0x00 AES3=0x00]
numid=34,iface=MIXER,name='IEC958 Playback Switch'
; type=BOOLEAN,access=rw------,values=1
: values=on
numid=19,iface=MIXER,name='Auto-Mute Mode'
; type=ENUMERATED,access=rw------,values=1,items=2
; Item #0 'Disabled'
; Item #1 'Enabled'
: values=0
numid=54,iface=MIXER,name='Digital Capture Volume'
; type=INTEGER,access=rw---RW-,values=2,min=0,max=120,step=0
: values=60,60
| dBscale-min=-30.00dB,step=0.50dB,mute=0
numid=28,iface=MIXER,name='Input Source'
; type=ENUMERATED,access=rw------,values=1,items=3
; Item #0 'Rear Mic'
; Item #1 'Front Mic'
; Item #2 'Line'
: values=2
numid=29,iface=MIXER,name='Input Source',index=1
; type=ENUMERATED,access=rw------,values=1,items=3
; Item #0 'Rear Mic'
; Item #1 'Front Mic'
; Item #2 'Line'
: values=2
numid=30,iface=MIXER,name='Input Source',index=2
; type=ENUMERATED,access=rw------,values=1,items=3
; Item #0 'Rear Mic'
; Item #1 'Front Mic'
; Item #2 'Line'
: values=2
numid=20,iface=MIXER,name='Rear Mic Boost Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=3,step=0
: values=0,0
| dBscale-min=0.00dB,step=10.00dB,mute=0
numid=14,iface=MIXER,name='Rear Mic Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=on,on
numid=13,iface=MIXER,name='Rear Mic Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=31,step=0
: values=23,23
| dBscale-min=-34.50dB,step=1.50dB,mute=0
numid=10,iface=MIXER,name='Side Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=on,on
numid=9,iface=MIXER,name='Side Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=87,step=0
: values=87,87
| dBscale-min=-65.25dB,step=0.75dB,mute=0
numid=49,iface=PCM,name='Capture Channel Map'
; type=INTEGER,access=r----R--,values=2,min=0,max=27,step=0
: values=0,0
| | TLV size error (257, 8, 0)!
numid=48,iface=PCM,name='Playback Channel Map'
; type=INTEGER,access=r----R--,values=8,min=0,max=27,step=0
: values=3,4,0,0,0,0,0,0
| | TLV size error (257, 8, 0)!
numid=50,iface=PCM,name='Playback Channel Map',device=1
; type=INTEGER,access=r----R--,values=2,min=0,max=27,step=0
: values=0,0
| | TLV size error (257, 8, 0)!
numid=51,iface=PCM,name='Capture Channel Map',device=2
; type=INTEGER,access=r----R--,values=2,min=0,max=27,step=0
: values=0,0
| | TLV size error (257, 8, 0)!
numid=52,iface=PCM,name='Capture Channel Map',index=1,device=2
; type=INTEGER,access=r----R--,values=2,min=0,max=27,step=0
: values=0,0
| | TLV size error (257, 8, 0)!
Is there any way to add Item 'IEC958 Default PCM' to numid=28,iface=MIXER,name='Input Source'? I tried recording from 'Line' but it doesn't work.
Am I doing something wrong? I'm still digging mad for a solution, and only the .asoundrc script works this far.
Last edited by HitomiTenshi (2013-03-09 16:54:16)

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Hi,
I successfully solved problem with no sound at all (http://bbs.archlinux.org/viewtopic.php?id=31960), but still have no sound in my headphones. When I plug them in, laptop speakers get muted, but headphones play no sound. I'm using KMix to control volume.
http://alsa.opensrc.org/Hda
dante4d
Last edited by dante4d (2007-11-23 10:46:12)

Hi,
what you mean by that "sense" word? Or what it means... Theres that yellow led above... It's turned on, I double checked all of that. Plugging headphones in just mutes speakers. Whats going on? I need to use skype and without headphones its bit annoying... Could it be something with snd_hda_intel module's model option?
If only certain aspects of your hardware work, e.g. the headphones but not line out, then you can try passing the model argument:
modprobe snd_hda_intel model=asus
I've got exactly the opposite .
dante4d

Little Help Recording INternal Sounds

See I Just Recently Crossed over to Mac from sshh a (PC)... Well, I used to use a program called Cool Edit to assist me for my Radio show that I run. Now the benifit of CoolEdit that I can Not seem to Get with GargeBand is... RECORDING INTERNAL SOUNDS... like I can record with the built in mic, but I want to Record The sounds Made on my CPU and the CPU Only... EG... If I want a SoundBite from an FINISHED BURNED CD... I WOULD JUST hit record and be able to Record it. I dont want the Mic to Pic up anything OUTSIDE I just want it to Record the noise that goes on in the CPU.... If any one can Help I would Appreciate it...

hi
I answered a similar question here recently ...
http://discussions.apple.com/thread.jspa?messageID=4556197&#4556197
hope this helps
look forward
gavin little
echolab
dublin, ireland
http://www.echo-lab.com/
http://www.imdb.com/name/nm1962022/

Recording and Sound

If you turn the volume down in the MSIPVS while you are recording it doesn't record any sound?! I thought the audio source comes from the cable and not the sound card? I have the tv card audio out to my line in on the soundcard.
Please let me know if i'm mad....

Hi,
All the audio has to pass through the sound card to be heard or recorded.
There are multiple audio sources, some of which are for devices external to the sound card (Line in, Mic, CD, Aux etx), and some of which are generated by the sound card (e.g. WAV and MIDI sources).
There are two virtual mixers available, one for Recording and one for Playback.
The playback mixer operates as a conventional audio mixer, in that you can adjust the volumes of the various sources and produce a mixture of multiple sources simultaneously. Usually there are options to Mute sources you don't need, which might reduce background noise a bit.
The Recording mixer is a frustratingly different kettle of fish, because it (usually) doesn't let you produce a MIX of different sources simultaneously. Although there are "faders" for each of the sources, it will only let you record from the source which is checked. If you want to record a mixture of sources, you have to select "What U Hear" (or similar) and use the Playback mixer to mix the sounds.
Another fine product from Bastards Incorporated
Cheers

My recorded footage without sound will not play, but will when recorded with sound, any ideas?

Hi there community!
I have recorded alot of footage on a digital Harinezumi 3 camera and have run into a problem in post production.
Some of the footage is recorded with sound, and plays fine. However, with most of the footage, i chose to turn the recording of sound off. These files without sound will not play in any player, even when Perian is installed.
These are the specs of the video I have been able to find out.
File type: .AVI
Video Stream: JPEG
This is all I can find out, so I am thinking it is an M-JPEG file rendered as an AVI file. VLC player says it can not play the video or audio format 'undf', whatever that means. Another player says it needs a .moov encoder, but I do not see how this is possible. I have also tried attaching audio to it via Logic 9 with no success.
I am at a loss, and I really need this footage for a project. Any ideas?
Thanks for any help!!

It won't let me post the video in the forum, so here is a link to it in dropbox.
https://www.dropbox.com/s/k4nz8mg18p4thzd/Mountain%203.AVI?n=145237283
Accessed the file at dropbox. Played the DropBox "display" file in scripted player, played the same resource file using the Safari plug-in, and then downloaded the resource file using the QT 7 Pro "Open URL" option only to learn that this file was an H.264 transcode and not your original file. Used the DropBox download option to download the original Motion JPEG file in AVI file container. File plays as is in both QT X v10.2 and QT 7 v7.6.6 players under Mountain Lion v10.8.4 on my system.
Motion JPEG is one of the "lagacy" codec components turned off under Lion and which remains turned off under Mountain Lion. However, as I understand it, Motion JPEG files are supposed to be passively supported (playback supported) under these systems but requires the codec to be turned back on if you wish to export files using this codec. I turned both Motion JPEG and Motion PNG codecs back on quite a while back and have Perian installed which, as you can see, supplied the OpenDML version of the Motion JPEG codec component to actually play your file on my system. Unfortunately, since QT uses a LIFO codec component list generation strategy, I would have to remove Perian to test whether or not the system configured Motion JPEG component would then become the active decoder. (Did this a year or two ago but not willing to do so again at this time.)
Suffice it to say, the file should play in QT on your Mountain Lion system assuming the correct version of Perian is installed, it is actually active, and you have no conflicting software or hardware installed on your system. Have posted an MOV file containing your Motion JPEG video data in case you want to see if it will play correctly on your system.
http://downloads.walker4.me/downloads/Temporary_files/Mountain%203.mov

[Solved] ffmpeg records no sound

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