Audio Switch- A Failure story

Ver 0.1

Ver 0.1.1

As I'm a music freak, I have different music on different machines of mine(a desktop and a laptop), but I have only one 2.1 channel sound system which has to be shared by both machines, for which I need to switch between both by plugging and unplugging to a machine each time. This turned out be a huge problem as I have to reach out to the wires plug in/out. So I thought of making a manual Audio switch which would help me with this problem.
First I came up with the Version 0.1 of the switch.
Its summarized below:

Advantages:

1. Easy to handle.

Disadvantages:

1. It was very unstable because it wasn't mounted on a PCB.
2. The sound output was not stereo mixed because of a design error.
3. Was very noisy.

Then I came up with the second version named 0.1.1(since no change in design), which is summarized below:


Advantages:

1. Was easier to handle than the old one.
2. Noise was reduced to a great extent.
3. Was stable as it was mounted on a PCB.
4. Stereo quality sound output.

Disadvantages:

1. Was prone to loose contacts and internal resistances of the extension chords.
2. Instead of providing two separate channels, the switch was multiplexing both inputs, which turned out to be a Disaster!

In the end both versions didn't satisfy my needs and the Audio switch turned to be a big FAILURE!

If if you have any suggestions to improve this please do leave a comment.