Was reading a review at AnandTech and it says:
On the left are the volume rocker button and a port for the secondary microphone for noise cancellation. You can follow that port inside to a small chamber where the microphone is. There aren't any markers on the volume rocker - then again up and down are pretty obvious. The volume rocker is also a multipurpose zoom control in the browser and camera application, which is probably part of why it's left unmarked.
Here is the link if you wanna check it out
Samsung Fascinate Review: Verizon's Galaxy S Smartphone - AnandTech :: Your Source for Hardware Analysis and News
On the left are the volume rocker button and a port for the secondary microphone for noise cancellation. You can follow that port inside to a small chamber where the microphone is. There aren't any markers on the volume rocker - then again up and down are pretty obvious. The volume rocker is also a multipurpose zoom control in the browser and camera application, which is probably part of why it's left unmarked.
Here is the link if you wanna check it out
Samsung Fascinate Review: Verizon's Galaxy S Smartphone - AnandTech :: Your Source for Hardware Analysis and News