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Changing audio levels in SO2R
Tim K9WX
Member ✭✭✭
1
Answers
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Very good write up and explanation of your test method. I am having the same feeling when switching audio from 1 to 2 ears. I have always thought it's just easier to copy with 2 ears. Whether this is a bug somewhere or just a normal result of audio mixing, I hope this could be adjusted so the level is the same. 73, Andy KU7T0
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This effect is called binaural summation. Tests have showed that you win some 2-3 dB listening in stereo with both ears than just one ear. It is very evident in SO2R operating.0
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I have noticed the same thing as Tim. An easy way to see the effect is to just put on one half of your headphones and put the other earpiece on the top of your head. As you switch to stereo, the ear that you are listening with gets louder. I think this is not very good for SO2R operations. I agree it would be good to be able to adjust this effect out. 73, Joel N9LQ1
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I have only noticed the change in audio levels when using N1MM+, where I use the tilde key (~) to go from stereo to mono and back to stereo. So the change is, in effect, instantaneous, without the delay that might be associated with adjusting the sliders. As Andy KU7T suggests, there is an OTRSP port involved.
Tim K9WX
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When you notice the change, is there a Slice coming or going? I ask because there is scaling that happens as a result of how many Slices are in use (and whether or not they are muted).0
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When I use this, I have 2 slices and they are staying. OTRSP just switches the audio.
Andy
KU7T0 -
Is it muting one of the Slices?0
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Eric: Not sure if the question about a slice coming or going was directed at me. But my SO2R setup would typically have two slices open and they remain open throughout. When listening in stereo, both slices have the audio turned on. When I use the ~ key in N1MM to switch to mono so that I have the same slice in both ears, the other slice becomes muted (shows the little red circle with the slash mark on top of the speaker icon for that slice in SSDR).
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The muted slice would explain this. We will revisit the decision about whether to include a muted Slice in our contributing Slice calculation. Thanks for the info.1
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