![]() The next step was to add to additional steps in the signal chain: 1) an audio mixer, and 2) the Audio to SDI Converters to embed 8 channels of audio into the video signal between the ATEM and Hyperdeck.īecause I now knew that the signal coming in from the test tone should be a unity gain signal, I removed the microphone cable from the camera and inserted it into channel 1 on the audio mixer. So, I knew that the audio signal path between the ATEM and Hyperdeck was fine. Sure enough, the signal strength was at unity. I then directly connected the SDI Input of the Hyperdeck to the Program SDI Out of the ATEM and added the Decimator DMON-Quad between the Program Out of the Hyperdeck and my program monitor so that I could monitor audio levels at the recorder. I then checked the output of the ATEM when the audio mixer settings were set to unity gain (0db), and the output level of the ATEM was at 0db. Only that the incoming audio signal to the ATEM was comparable to a standard test tone. ![]() Since I wasn't going to be using camera audio anyway, I didn't worry about the gain on the camera. ![]() I adjusted the distance of the microphone and the volume on the camera until I achieved unity gain (0db on the meter when fader was set to 0db) on the input of the ATEM Television Studio HD. I then set up a test tone by using a continuous 440hz tone created by a metronome and placed a microphone in front of it. This allowed me to see the strength of the audio signal actually being received and recorded by the Hyperdeck. I picked up a Decimator DMON-Quad which gives the capability of 8 channels of audio monitoring, and connected it to the program out on the Hyperdeck Studio recorder. I just wanted to post an update on the weak audio issue. So, the problem does not appear to be in the SDI cabling, the audio signal strength, the audio cabling, or the settings on the recorder.Īt this point, I don't know whether I have two faulty Audio to SDI Converters, I am connecting something wrong, or there is some wrong setting somewhere.Īny thoughts on what to do next would be very much appreciated. I even tried a second Audio to SDI mini converter that I had just purchased.I cranked up the channel volume inside the BMD Converter Setup Utility to +10db. ![]() Checked the video signal between the ATEM and recorder and it was great.I replaced the cabling between the aux sends and the embedder.I even tried using a different audio interface (Focusrite) to send a signal to the audio embedder, and it did not make any difference. Checked the aux output signal strength from the mixer by connecting it to other audio gear.Here is what I have done to troubleshoot: There must be something that I am missing, however, because the audio signal being embedded into the video signal is incredibly weak. I launched the BMD Converter Setup Utility, updated the firmware in the converter, and made sure that the volume settings on each channel were set to Unity Gain ("0db").The analog inputs are fed from the aux sends of a Behringer XR18 digital mixer.All switches on the audio embedder were set to "OFF" so that the converter is embedding analog signals to channels 1-4 in the video signal with sample rate conversion.Between the ATEM and the Hyperdeck, I placed an Audio to SDI Mini Converter to add tracks to the video signal coming out of the ATEM.I set the number of audio tracks on the Hyperdeck Studio Mini to 8.I have an ATEM Television Studio HD and am connecting the SDI Program Out of the ATEM to the SDI input of a Hyperdeck Studio Mini recorder.I am having an issue with embedding audio into an SDI video signal, and I hope someone has some experience with the SDI to Audio converters that can help me understand what I am doing wrong.
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