We have provided a number of pre-sampled sound recordings below. These recordings give you an idea of how the qualtiy of speech varies by sampling rate.
Higher frequencies produce the best playback sound.
But, a high sampling rate has a corresponding cost since it requires greater amounts of memory for storage of data. In case you are using an older version of Netscape or your system does not have built-in audio feature capabilities, you can hear the recordings using the .aiff files selection. The following formula will help you calculate the necessary amount of memory storage needed in your application. As an example, assume that you require 32 seconds of total recorded speech in your application and you wish to record at an 8 KHz sampling rate. By knowing the total memory requirements of your application, you can refer to the Product Selection Guide to determine the correct speech device for your application and whether to use internal or external memory, based upon those requirements.