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• Transcription via OpenAi's whisper : AssertionError : incorrect audio shape

  1er avril 2024, par muratowski

  I'm trying to use OpenAI's open source Whisper library to transcribe audio files.

  


  Here is my script's source code :

  


  import whisper

model = whisper.load_model("large-v2")

# load the entire audio file
audio = whisper.load_audio("/content/file.mp3")
#When i write that code snippet here ==> audio = whisper.pad_or_trim(audio) the first 30 secs are converted and without any problem they are converted.

# make log-Mel spectrogram and move to the same device as the model
mel = whisper.log_mel_spectrogram(audio).to(model.device)

# detect the spoken language
_, probs = model.detect_language(mel)
print(f"Detected language: {max(probs, key=probs.get)}")

# decode the audio
options = whisper.DecodingOptions(fp16=False)
result = whisper.decode(model, mel, options)

# print the recognized text if available
try:
    if hasattr(result, "text"):
        print(result.text)
except Exception as e:
    print(f"Error while printing transcription: {e}")

# write the recognized text to a file
try:
    with open("output_of_file.txt", "w") as f:
        f.write(result.text)
        print("Transcription saved to file.")
except Exception as e:
    print(f"Error while saving transcription: {e}")


  


  In here :

  


  # load the entire audio file
audio = whisper.load_audio("/content/file.mp3")


  


  when I write below : " audio = whisper.pad_or_trim(audio) ", the first 30 secs of the sound file is transcribed without any problem and language detection works as well,

  


  but when I delete it and want the whole file to be transcribed, I get the following error :

  


  


  AssertionError : incorrect audio shape

  


  


  What should I do ? Should I change the structure of the sound file ? If yes, which library should I use and what type of script should I write ?

  


• How to call ffmpeg main method from Xcode 7.2 ?

  15 mars 2016, par user5761723

  I’m new to iOS app Development. I compiled the ffmpeg-3.0 libraries for iOS. and integrate them into Xcode. but when i try to call main method of ffmpeg.c, it won’t work.

  Can someone tell me the procedure, how to move ahead from here ?. i actually want to convert audio formats.

• Compiling FFmpeg lib and add it to NDK sources on Windows8

  2 février 2021, par Nativ

  I've seen some articles about how to compile and uses FFmpeg for Android.

  


  These are 2 good examples - example1 and example2

  


  Unfortunately, non off them, or others I found helped me. In those two examples a build_android.sh is created and configure the FFmpeg's configuraion file and call to make. Every time when I'm running the script I'm getting the following error :

  


  c:\android\development\android-ndk-r9\sources\ffmpeg>sh build_android.sh
c:/android/development/android-ndk-r9/toolchains/arm-linux-androideabi-4.8/prebu
ilt/windows-x86_64/arm-linux-androideabi/bin/bin/arm-linux-androideabi-gcc is un

able to create an executable file.
C compiler test failed.

If you think configure made a mistake, make sure you are using the latest
version from Git.  If the latest version fails, report the problem to the
ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
Include the log file "config.log" produced by configure as this will help
solving the problem.
Makefile:2: config.mak: No such file or directory
Makefile:49: /common.mak: No such file or directory
Makefile:92: /libavutil/Makefile: No such file or directory
Makefile:92: /library.mak: No such file or directory
Makefile:169: /doc/Makefile: No such file or directory
Makefile:170: /tests/Makefile: No such file or directory
make: *** No rule to make target `/tests/Makefile'.  Stop.
Makefile:2: config.mak: No such file or directory


  


  If someone encountered and solved this issue it'll be much appreciated !

  


  After trying the suggested script I ran into a new problem that I couldn't solved, this is the output of the script :

  


  .... Enabled components list....

  


  In the end of the list I got the following :

  


  Enabled indevs :
dv1394 v4l2i
fbdev

  


  Enabled outdevs :
fbdev v4l2

  


  License : LGPL version 2.1 or later
Creating config.mak, config.h, and doc/config.texi...

  


  WARNING : C :/android/development/android-ndk-r9/toolchains/arm-linux-androideabi-
4.8/prebuilt/windows-x86_64/bin/arm-linux-androideabi-pkg-config not found, libr
ary detection may fail.
make : *** No rule to make target libavfilter/libavfilter.so', needed by all-ye
s'. Stop.
make : *** No rule to make target install-libavfilter-shared', needed by instal
l-libs-yes'. Stop.