your dB range 23.37 are just less than 24dB
+ +#define MAX_LINEAR_DB_SCALE 24
http://git.alsa-project.org/?p=alsa-utils.git;a=commitdiff;h=34bb514b5fd1d6f91ba9a7b3a70b0ea0c6014250;hp=70a01748d594ef57a1962e4cb012927faf6d852f
your dB range 23.37 are just less than 24dB
+
+#define MAX_LINEAR_DB_SCALE 24
http:// git.alsa- project. org/?p= alsa-utils. git;a=commitdif f;h=34bb514b5fd 1d6f91ba9a7b3a7 0b0ea0c6014250; hp=70a01748d594 ef57a1962e4cb01 2927faf6d852f