imghdr.what(filename, h=None) Tests the image data contained in the file named by filename, and returns a string describing

oss_audio_device.obuffree() Returns the number of samples that could be queued into the hardware buffer to be played without

oss_audio_device.close() Explicitly close the audio device. When you are done writing to or reading from an audio device, you

Wave_write.close() Make sure nframes is correct, and close the file if it was opened by wave. This method

aifc.getcomptype() Return a bytes array of length 4 describing the type of compression used in the audio file. For AIFF files

aifc.readframes(nframes) Read and return the next nframes frames from the audio file. The returned data is a string

colorsys.yiq_to_rgb(y, i, q) Convert the color from YIQ coordinates to RGB coordinates.

audioop.minmax(fragment, width) Return a tuple consisting of the minimum and maximum values of all samples in the sound fragment

Wave_read.tell() Return current file pointer position.

Wave_write.writeframesraw(data) Write audio frames, without correcting nframes.