How to set up the broadcast of music during the online broadcast?

Question

Live

Tell me how to correctly solve the problem of broadcasting music during a live broadcast?
I do online yoga classes.
Speech is transmitted through a microphone connected to the transmitter. The signal from the transmitter is picked up
by the base receiver, which is connected to the video camera via a cable. The camera is connected via HDMI to a video capture card, in turn, this card is connected to a laptop, which transmits image and sound to Youtube via the Internet.

The problem is that in addition to speech transmission, there is an urgent need to broadcast musical accompaniment. So far, this has been implemented in such a way that the music plays in the room through the music center and the sound of the music is picked up by the same microphone that serves to transmit the words of the teacher, that is, the quality sucks, the collective farm.

I have a second transmitter to which you can connect any device via a cable with a jack, such as iphone 6s or music. Centre. From the device, broadcast music to the transmitter, the signal from which will also come to the base and then go into the broadcast in the same way as speech. But then there is another problem - the teacher does not hear the broadcast music, does not control its volume. The music is only heard by the broadcast audience.

How to make the teacher hear the music? Because he sometimes needs to sing a mantra to the music, and he also needs to control its volume. And at the same time, so that the music does not go through the collective farm through the same microphone as the voice of the teacher, but is transmitted on the air with high quality?

Help me please! I'm sure this is a typical task for a pro, but for an amateur like me, this is a real problem.

Answer 1

The solution is called "Mixing Console (Small)". They are quite miniature (4-6 channels). With it, you can set up sound routing as you like and anywhere, as well as set the volume of music output to the hall and to the broadcast, adjust the ratio between the music and the coach's voice.
The advantage of such a solution is that it is a physical box, not software, it cannot be turned off - it is enough to set up and take a picture of the handles once - if someone screwed something up, you can set everything up according to the photo.

The mixer in the picture has two output channels - FX and Main. You can send the FX channel to the broadcast, and output the Main channel to the speakers in the hall. Thus, you can separately adjust the sound in the broadcast and the sound in the hall.

Answer 2

There is a separate streaming software like obs through which you can greatly expand your capabilities, but if only sound, then you should look in the direction of controlling the audio stream. I use software from rogueamoeba (loopback), but it costs money for macs too. Surely you can find alternative mixers