python - What is returned by wave.readframes?

Question

I assign a value to a variable x in the following way:

import wave
w = wave.open('/usr/share/sounds/ekiga/voicemail.wav', 'r')
x = w.readframes(1)

When I type x I get:

'x1ex00'

So x got a value. But what is that? Is it hexadecimal? type(x) and type(x[0]) tell me that x and x[0] a strings. Can anybody tell me how should I interpret this strings? Can I transform them into integer?

Answer 1

The interactive interpreter echoes unprintable characters like that. The string contains two bytes, 0x1E and 0x00. You can convert it to an integer with struct.unpack("<h", x) (little endian, 2 bytes, signed).