Hi,
I'm grateful for this code! The error specifies that unpack needs a buffer of 2 bytes and happens in the get_compression_type function on the second iteration. Kindly assist me with this error.
Thank you.

when I used it to read the audio with g729a, it raised "struct.error: unpack requires a bytes object of length 1". Does it support the g729A code?

Hi, I'm not a python expert so I am struggling to work out why this isn't working for me. I am running this out of the box and getting the below error - should I be doing something different? I'm on Windows 10, and python 2.7.

λ python nmf_converter.py "C:\path\to\my\file.nmf"
Traceback (most recent call last):
  File "nmf_converter.py", line 121, in <module>
    convert_to_wav(path_to_file)
  File "nmf_converter.py", line 109, in convert_to_wav
    stdin=subprocess.PIPE
  File "C:\Python27\lib\subprocess.py", line 390, in __init__
    errread, errwrite)
  File "C:\Python27\lib\subprocess.py", line 640, in _execute_child
    startupinfo)
WindowsError: [Error 2] The system cannot find the file specified

Hi,

First let me thank you for this project. It already helped me a lot!

Today I found an audio that couldn't be converted by this great code.

The Nice Player can play it, but the conveter couldn't convert.

The condition if headers["packet_type"] == 4 and headers["packet_subtype"] == 0: is never true.

Instead of the combination of (packet_type == 4 and packet_subtype == 0), the file shows only (packet_type == 4 and packet_subtype == 3).

The audio file is attached.

Can you give a light on this issue?

nice_audio_6.7.zip

Thanks!

In the file, it reads:

data_value = struct.unpack(fmt, data[0:data_size])
if data_value == 0:

but, data_value should be a tuple after unpack, it will never equal to 0.

I am using python 3.x and never find the file. I am sure that my file is in the correct directory. what am I doing wrong?

Is it possible to output 1 file instead of splitting them into multiple files for different streams?

Hi,
I'm using your great script to extract each stream of an .nmf file to sum them myself afterward and obtain a mono .wav file (and hear it like I would in the Nice Audio Player).
The problem is: can't figure out how to get each stream's timestamps (in particular each stream's starting time). I saw that we have a start_time and end_time value when reading the header with the get_packet_header() function, but each of them appears to be the same for each stream.

Is there something i'm missing about those start_time and end_time values ?

Thanks !