When recording externally with a SONY Alpha 7 please connect the Tentacle to the 3.5mm MIC input on the camera and make sure to select in the menu > Audio Out Timing > Lip Sync
The Audio TC will be sent through the HMDI connection and recorded externally on an appendant track together with the video.
If the option 'Live' is selected on the SONY Alpha 7 the audio and video on the HDMI output won't be recorded in sync. The reason is that the camera needs a longer time to process video images in relation to the sound files which leads to an echo while monitoring. The Live option intends to correct the echo by shifting the audio relating to the video. But only the Lip Sync option outputs the video and audio in sync.