[alsa-devel] Improving status timestamp accuracy

[Alan Young]

On 04/06/16 16:59, Clemens Ladisch wrote:
>> >I want to know, at any given point in wall-clock time, how many samples
>> >have been output.
>  From the buffer, or from the speaker?
Obviously the speaker would be ideal, but there will likely be 
components between the output of the DMA and the speaker that will add 
some delay, such as a DAC and maybe a DSP. However, such components will 
typically add: (a) a very small delay, (b) a near constant delay,