Can't get anything usable with my phone even with the auxiliary mic that came with my lens kit. It does great for what I bought it for (which isn't recording bass guitar demo's).
find a place that records video & audio, like in your local shopping mall or supermarket
set up & play right in front of the recording device
find the security guy & ask him for a copy of your performance
Our library downtown has a recording studio you can reserve and use. Check around and see if you have something similar in your area.
Um, OK, let me rephrase: using the phone and/or computer I already have without leaving the house
Use your computer or phone to order one online. It delivers to your doorstep, and voila, good recordings and you never had to leave the house.
Smarminess aside, we probably can't offer too much help without knowing what kind of computer (Mac or PC), or what kind of phone, or what kind of lens kit with mic you were talking about, or what your final intentions are. Are you trying to just get something to record ideas, or are you trying to compose music?
Can't get anything usable with my phone even with the auxiliary mic that came with my lens kit. It does great for what I bought it for (which isn't recording bass guitar demo's).
How the heck are you going to record anything with zero recording gear?
Anyway....a while back there is a member here who posted a video and soundclip of himself playing bass. It was quite good.
I forget what kind of phone he had....but you can get this plug-in stereo mic for it that produces pretty good sound.