Amplitude to DB

Turn a tensor from the power/amplitude scale to the decibel scale.

transform_amplitude_to_db(stype = "power", top_db = NULL)

Arguments

stype

(str, optional): scale of input tensor ('power' or 'magnitude'). The power being the elementwise square of the magnitude. (Default: 'power')

top_db

(float or NULL, optional): Minimum negative cut-off in decibels. A reasonable number is 80. (Default: NULL)

Value

tensor: Output tensor in decibel scale

Details

This output depends on the maximum value in the input tensor, and so may return different values for an audio clip split into snippets vs. a a full clip.

forward param: x (Tensor): Input tensor before being converted to decibel scale