Ran Shalit wrote:
I am using card with playback device and capture device.
It seems to me that playback has 2 channels and capture has 2 channels each.
The physical connection is:]
* mic input
* line input
* line output
* headphones output
The routing is typcially handled with
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,
Hi Ran,
I don't think ALSA APIs offer any mono or stereo abstraction.
The API enables you to define a sample format and a sampling rate for one
channel, then the number of channels (at least in pcm).
You can configure your access point with two channels and use them
according to your device
Ran Shalit wrote:
On Sun, Jul 5, 2015 at 9:06 PM, Clemens Ladisch wrote:
Ran Shalit wrote:
I would like to ask if dual mono, is used in ALSA APIs, or wether it is the
same as stereo.
What exactly do you mean?
I actually need to do the following:
analog audio from 2 channels -- encode
Ran Shalit wrote:
I would like to ask if dual mono, is used in ALSA APIs, or wether it is the
same as stereo.
What exactly do you mean?
Regards,
Clemens
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