Spectrogram v4.1.2 is a dual channel audio spectrum analyzer for Windows 95 which can provide either a scrolling time-frequency display or a spectrum analyzer scope display in real time for any sound source connected to your sound card. Spectrogram also allows recording and playback of sounds, and can provide very high resolution spectrum analysis of wave files with a wide choice of frequency bands and frequency resolution and either linear or logarithmic frequency scales. Spectrogram is ideal for any purpose related to sound spectrum analysis including including Analysis and identification of biological sounds Analysis and identification of human speech Analysis of musical performances Tuning of musical instruments Evaluation and calibration of home audio systems Ham Radio audio reception Analysis of radio interference including atmospheric electromagnetic effects Spectrogram requires Windows 95, at least 16 mbytes of RAM, and a Windows compatible sound card. Spectrogram is freeware. Richard Horne rshorne@mnsinc.com