Hi there
the HDMI audio is disabled by default due to the impact to the mic aduio.
For the andriod part, we will not support this and we remove it from wiki. you can refer to <LINK_TEXT text=“https://github.com/SeeedDocument/wiki_e … th-android”>https://github.com/SeeedDocument/wiki_english/blob/463e755d8b2fc770d24f2371229e816157cd194f/docs/ReSpeaker_Core_v2.0.md#running-with-android</LINK_TEXT> for the detail instructions. thanks.