It's disappointing that so many tech videos (in my experience) pay such little attention to the audio (bitrate and/or volume). My volume had to be at 100% to he

It's disappointing that so many tech videos (in my experience) pay such little attention to the audio (bitrate and/or volume). My volume had to be at 100% to hear this comfortably. Another example are published webcasts wherein the presenter is using their telephone (on speakerphone!) to give the presentation. That is just ridiculous. If you do presentations don't use a system that doesn't allow you to use a microphone (and don't forget to buy and use the microphone).