/usr/share/alsa/speaker-test/sample_map.csv is in alsa-utils 1.0.27.2-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | 0, "Front Left", "/usr/share/alsa/samples/Front_Left.wav"
1, "Front Right", "/usr/share/alsa/samples/Front_Right.wav"
|