Hello Community!
I have started a project and am at a stage that I would like my plans verified before I invest in the parts needed to complete the project. Here are the notes...
I am looking to build an audio selector which allows me to independently control (through analog dials) my audio source, output and mic source. Additionally one of the audio source will be a mix of two audio sources. I have been reading around and have come up with the following diagram. I was hoping someone could validate its not a terrible idea and also answer these questions three...
1) Are the resistors the correct value for the job/ placed correctly? I have no interest in an active system and do not want to have to supply power to this box.
2) I dont quite understand how the grounding works and am concerned that with two different audio signals combined (computer and iphone) the ground will loop (?) How can I prevent this, preferably without a ground loop isolator. If this is a terrible idea, which I assume it is I will change it to a non mixed signal (just the computer on that selection.)
3) The speakers and the iPhone dock will be connected by USB to the computer - does this affect anything? Thinking it might help with the ground issue...
Thanks in advance for any feedback on this!
I have started a project and am at a stage that I would like my plans verified before I invest in the parts needed to complete the project. Here are the notes...
I am looking to build an audio selector which allows me to independently control (through analog dials) my audio source, output and mic source. Additionally one of the audio source will be a mix of two audio sources. I have been reading around and have come up with the following diagram. I was hoping someone could validate its not a terrible idea and also answer these questions three...
1) Are the resistors the correct value for the job/ placed correctly? I have no interest in an active system and do not want to have to supply power to this box.
2) I dont quite understand how the grounding works and am concerned that with two different audio signals combined (computer and iphone) the ground will loop (?) How can I prevent this, preferably without a ground loop isolator. If this is a terrible idea, which I assume it is I will change it to a non mixed signal (just the computer on that selection.)
3) The speakers and the iPhone dock will be connected by USB to the computer - does this affect anything? Thinking it might help with the ground issue...
Thanks in advance for any feedback on this!
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