I'm working on a script that will search through a directory for MKV files and remux them to MP4. I found a few other scripts around the net that do this, but they all have limitations that don't always get the job done. The main limitation I've found is that most scripts look for the video track in either the first track or the last track, which isn't always true.
I'm quite new to Linux (Lubuntu 12.04 for sake of precision) and ALSA programming at all.
I'm trying to write a C program to capture audio from internal PC microphone for processing it.
So as first step I google a bit and I found this article for capturing audio samples
A tutorial on using the ALSA Audio API
but when I compile it and execute it with:
./capture "default" or ./capture "hw:0,0" a
Here's a clue:⋯$ aplay -l
aplay: device_list:252: no soundcards found...⋯$ aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
pulse
PulseAudio Sound Server
default
Default ALSA Output (currently PulseAudio Sound Server)Yet there are three sound devices in the system.
I'm not sure if this is the right board or should be in laptop issues, feel free to move it to another area if necessary.I recently got a new laptop (Sony Vaio VPCSC41FM) and the internal mic doesn't show up in alsamixer but mic boost and capture both show up, but don't give me sound on the mic.$ lspci|grep Audio
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset F
I am new to Android, and am trying to stream audio from my Phone to my Toyota Prius. I have successfully got the pairing and see the BT connected symbol on the status bar. The Phone switches off the speaker. The phone responds correctly to Track + and Track - commands from the car system.
I boot with /etc/modprobe.d/sound.conf
$ cat /etc/modprobe.d/sound.conf
Code:
# remove this file if you would like to make alsa automatic and not manual
## ALSA portion
alias char-major-116 snd
alias snd-card-0 snd-hda-intel
alias snd-card-3 snd-usb-audio
## module options should go here
I'm working on a app where I need to continuously keep track of the user audio input (via mic). The problem is that, as the Android does not allow us to keep track of the mic input level (as far as I know), I have to run a thread that keeps recording audio (via AudioRecord) for a long period of time. And, I'm worried if this approach can compromise the system resources.
So...
A-ha! It was the "Multi Track Internal Clock" parameter. It was set to "IEC958 Input", an external clock source, which was not connected. I had to set it to "96000" and my audio came right to life. Damn, I had the feeling something like this was the case. So it was me being dumb after all This is on a high-end audio production card
Is possible activate the skip track with volume button in Ultimate HD 2.0?