About 25 children, two teachers and two companions, crossing a street. City atmosphere, children and some bird calls. UCS Category: AMBUrbn. Duration: 00:28.
About 25 people. They discuss the strong level, as if there was music. No music or other sounds. Walla group. French. UCS Category: CRWDWalla. Duration: 01:54.
The tone of a telephone when calling my own mobile number. This is called Dual Tone Multi Frequency (DTMF) dialing. UCS Category: COMTelph. Duration: 00:24.