A mathematical model that gives you better sound.
Streaming music over the mobile phone net has become more and
more usual. Many of the FM radio stations are today transmitting
their programs both through the air and over the Internet. It is
desirable to find a mathematical model for the perceived quality of
streaming music, to be based on measurements of the transmission
quality when the transmission is subjected to noise and
interference.
Perceived Quality of Service in audio streaming
Streaming music over the mobile phone net has become more and
more usual. Many of the FM radio stations are today transmitting
their programs both through the air and over the Internet.
On-demand streaming is increasing as is the number of new
international and highly specialized stations.
The stream of music to the mobile phone is typically subjected to a
lot of interference, mostly due to the lack of capacity and the
number of base stations. It is of great importance to understand
how the user-perceived quality is dependant of this interference.
This will help us develop functions that ensure a high perceived
quality of listening.
The subject of the final paper is to find a mathematical model
based on measuring the quality of transmission to the mobile phone
in order to grade the perceived quality of real-time streaming
music when it is subjected to noise and interference. Things that
have to be considered are for example the volume of interference,
and their distribution in time.
In order to verify the mathematical model, listening tests have be
done where ordinary people listened to a number of sequences and
then had to score them according to one of five grades (MOS
measurement).
Jonas Lundqvists master thesis in this subject:
http://epubl.ltu.se/1402-1617/2010/156/index.html