[Alsa-user] dual mono

Hello, I am new with ALSA project. I would like to ask if dual mono, is used in ALSA APIs, or wether it is the same as stereo. Thank you, Ran -- Don't Limit Your Business. Reach for the Cloud. GigeNET's Cloud Solutions

[Alsa-user] compile test examples

Hello, I cross-compile alsa-project for arm target. It seems to work find. I then wanted to compile test examples: make pcm CC pcm.o CCLD pcm But It seems to create just object .o, not executable I see that there is additional pcm script file in the test folder. Does anyone

Re: [Alsa-user] compile test examples

On Wed, Jul 15, 2015 at 12:50 PM, Ran Shalit ransha...@gmail.com wrote: Hello, I cross-compile alsa-project for arm target. It seems to work find. I then wanted to compile test examples: make pcm CC pcm.o CCLD pcm But It seems to create just object .o, not executable I

Re: [Alsa-user] dual mono

Dual mono is indeed an AAC-related concept. When you record multiple channels using ALSA, they are always independent, i.e., ALSA does not make any assumptions about the sample values in the channels (or, for that matter, about consecutive samples in the same channel). In other words,

Re: [Alsa-user] aplay rate - what is it for ?

On Fri, Oct 9, 2015 at 11:52 AM, Clemens Ladisch <cladi...@googlemail.com> wrote: > Ran Shalit wrote: >> I don't understand why rate is required when we play PCM file. > > The rate is _not_ required when we play PCM file. > > If the file header has the rate, aplay

Re: [Alsa-user] aplay rate - what is it for ?

On Thu, Oct 8, 2015 at 7:55 PM, chris hermansen <clherman...@gmail.com> wrote: > Ran and list, > > On Oct 8, 2015 09:29, "Ran Shalit" <ransha...@gmail.com> wrote: >> >> Hello, >> >> I don't understand why rate is required when we play PCM fil

Re: [Alsa-user] 'control ... is already present' message

On Fri, Sep 11, 2015 at 9:42 AM, Clemens Ladisch <cladi...@googlemail.com> wrote: > Ran Shalit wrote: >> asoc: failed to add dapm kcontrol Right HPCOM Mixer Line2L Bypass Switch: -16 >> asoc: failed to add kcontrol Right Line2R Mux >> ... >> What is the reason

[Alsa-user] aplay/arecord hang

Hello, I am using 2 cards for sound. I have configured the crads/hw in kernel for the custom board. With card0 , arecord seems OK (not yet checked the result record wav file), but with card1 it hangs in (strace output): poll([{fd=4, events=POLLIN|POLLERR|POLLNVAL}], 1, -1 Does anyone have any

[Alsa-user] arecord - playback speed is faster then in reality

Hello, I use arecord to record as done in the following line: arecord --device=plughw:0,1 --duration=8 /mnt/nfs/test.wav But on playing the recorded file (vlc or audacity) it is played faster then the real speed: https://drive.google.com/file/d/0B22GsWueReZTUnFvYXZRNjBiZXM/view?usp=sharing

[Alsa-user] 'control ... is already present' message

Hello, I'm using 2 codecs (tlv320aic3x-codec) each which both are registered into same sound card, each as a single device. After boot I have the following devices: root@dm814x:~# cat /proc/asound/devices 0: [ 0] : control 16: [ 0- 0]: digital audio playback 17: [ 0- 1]: digital audio

Re: [Alsa-user] arecord sample rate

On Sat, Sep 19, 2015 at 11:20 AM, Ran Shalit <ransha...@gmail.com> wrote: > Hello, > > I'm using arecord as following: > arecord --device=plughw:0,0 --duration=2 test.wav > Anit is prints that it is using rate: 8000Hz > But on opening it with audacity, or vlc, it shows t

[Alsa-user] arecord sample rate

Hello, I'm using arecord as following: arecord --device=plughw:0,0 --duration=2 test.wav Anit is prints that it is using rate: 8000Hz But on opening it with audacity, or vlc, it shows that sample rate is 44100. Is there any explaination for this behaviour ? Regards, Ran