Messages in this thread | | | Date | Mon, 23 Jun 2008 23:46:11 -0700 | From | "X Jin" <> | Subject | PCM format support (24 bit data stored in 32-bit word) in ALSA? |
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Hi,
I have a capture card using a TI PCM1803a chip, which is a 24-bit AD converter. However a 24-bit digital information is stored in a 32-bit word. I searched the ALSA PCM code and found that the format SNDRV_PCM_FORMAT_S24_LE (and others) defines the physical bit width as 32. I guess these definitions are designed to handle exactly the situation I'm facing now. In other words, ALSA can handle the 24-bit format in a 32-bit physical data.
Is my understanding correct?
TIA -XJ
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