caption: quanrization efficiency needed because over telephone telephone frequencies
exif: {"Image DocumentName": "QuantizationEfficiency needed because even telephone sampling requires 8000 measurements for each second.", "Image ImageDescription": "Quantization. Representing real value of each amplitude as integer. 8-bit (-128 to 127) or 16-bit ( to 32767) Formats for storing quantized data. Number of channels per file. 16 bit PCM (linear/unlogged) 8 bit mu-law; log compression (hearing is more sensitive at small intensities) Headers. Raw (no header) Microsoft wav. Apple aiff. Sun .au. 1/5/07.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}