Mobile phone recordings. You can't expect much from them but they can tell one or two things about the sound and room signature. Try make a recording of your room and compare. Thanks for the vote.
The mobile phone recordings can be quite misleading. A mobile phone recording of a track with good amount of low frequencies can sound distorted whereas the same track played with tiny computer speakers (mainly mid-range and tweeters) may sound excellent when recorded with mobile phone.
phone recordings capture the vocals rather accurately and so too many frequencies that fall within that range. If you were to listen vary carefully you could hear the tonal difference in the voice. You could also hear the blurring of notes at higher volume which tell the room influence. Of course, a better mic would give much cleaner sound.
I have made many recordings with mobile phone of different setups and whenever I find another system that sounds better the recordings help me to understand the reasons. But what do I know I'm just a guy who couldn't even tell the difference in cables.
