SV-1 is a device designed specifically for experiments requiring a vocal response.
Acquire vocal reaction times with peace of mind.
SV-1 is a device designed specifically for experiments requiring a vocal response. SV-1 monitors the participant’s voice level at all times and when the level rises above a user-specified threshold it reports this to the computer. SV-1 is powered by an 18 MHz microprocessor and is a 100% digital device.
Cedrus has developed free, open source libraries for:
The analog frequency response is fairly flat over the range of 50Hz to 10kHz. That signal is rectified and filtered and the resulting envelope is used to trigger SV-1.
The majority of the low frequency response is determined by the delay setting, e.g. 1kHz signal has a period of 1ms, yet it needs to be relatively immune to ‘P’ and ‘B’ sounds.
SV-1 uses an RS-232 serial port. A free USB-to-serial port adapter is included with every purchase. The adapter requires the installation of a USB driver.
On Mac: the USB driver can be downloaded from the Cedrus website.
On Windows: the USB driver is included with all versions of Windows starting with Windows XP with Service Pack 3.
|SV-1 Smart Voice Key||£ 315.13||€ 355.15|
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