Ignacy Kasperowicz wrote:>> Just write the data to the device.>> Ok, but when I just write data to the device I don't really know how> long it'll be playing. But you know how many sample you are writing, and you know the samplerate. > There is no problem when I've infinite loop with writei inside. but I> need to change freq of my sound signal with exact 843 us period time. Assuming a sample rate of 48 kHz, 1/1200 s corresponds to exactly40 samples. At 44.1 kHz, this would be 36.75 samples, so you'd have touse groups of 37+37+37+36 samples with appropriate phase shifting. BTW: 1 / 1200 Hz = 833.33... µs HTHClemens_______________________________________________Alsa-devel mailing listAlsa-devel@xxxxxxxxxxxxxxxxxxxx://mailman.alsa-project.org/mailman/listinfo/alsa-devel
