pySoundCardInfo

Very basic python module to get a list of audio cards detected by Alsa and the current state, sample rate, bits per sample and channels of a given card. Tested on a Raspberry Pi with two sound cards

Usage:

get_cards()

Creates a list of the available sound cards

get_name(index)

Returns the name of a sound card given its index number

get_state(index)

Returns a dictionary containing:

• state: "closed" or "playing"
• sample_rate_hz :
• number_of_channels :
• bits_per_sample :

get_index_from_name(name)

Returns the index of a card if it can find "name" in the cards' name as provided by Alsa.

Note: Needs get_cards() to have been run first

Running the file whilst playing a file using Roon yields:

Audio cards   : [{'index': 0, 'name': ' USB Audio'}, {'index': 1, 'name': ' HifiBerry Digi HiFi wm8804-spdif-0'}]
index of card "hifiberry" is 1
Current State:  {'state': 'playing', 'sample_rate_hz': 192000, 'number_of_channels': 2, 'bits_per_sample': 24}