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G711 A-Law / u-Law audio-coding library - GitHub
https://github.com/stolpa4/g711
load_ulaw(path: Union[str, os.PathLike]) -> numpy.ndarray(dtype=numpy.float32) - Same for u-Law. save_alaw(path: Union[str, os.PathLike], audio_data: numpy.ndarray(dtype=numpy.float32)) -> bool - Encodes an array to A-Law and writes bytes to a specified file. audio_data can be anything convertible to numpy.ndarray(dtype=numpy.float32).
uLaw | Airwindows
https://www.airwindows.com/ulaw/
uLaw comes in two parts. The encoding applies a hideous distortion, making all the quietest sounds unreasonably loud and squishing the dynamic range up into the extreme near-clipping zone. The decoding neatly inverts this process and puts it all back. uLaw (the Airwindows plugin) does the high-resolution calculation of this process, so you can ...
audio - Decode G711(PCM u-law) - Stack Overflow
https://stackoverflow.com/questions/3251782/decode-g711pcm-u-law
The audio is encoded in G711 (PCM ulaw). Do I need to decode the PCM audio data to a raw audio data before I could pass it to the audio engine to play? If so, is there some sample code on how to decode it? I am confused as somehow I believe PCM is already RAW. Could I just feed it directly to the audio engine on Android for example?
AudioCodes Quick Reference Guide – Transcoding
https://www.audiocodes.com/media/13566/audiocodes-quick-reference-guide-transcoding.pdf
need to establish voice communication you can configure the device to perform audio coder transcoding between the inbound and outbound legs to enable media flow between them. For instance, if the (A) inbound leg offers a G.729 coder, but the (B) outbound leg only supports G.711 ulaw the device can be configured to transcode the G.729 to G.711.
Quick convert raw g711 uLaw audio to a .au file | All My Brain
https://allmybrain.com/2012/03/16/quick-convert-raw-g711-ulaw-audio-to-a-au-file/
I had reason to playback some raw g.711 audio data. I made the following script to convert the data to a .au file that is playable. You just need to add 6 32-bit header flags. You can probably see that this would be extremely simple to use …
U-Law codec - Audio Codecs - MovieCodec.com
https://www.moviecodec.com/audio-codecs/u-law-codec-63609/
U-Law codec. posted in Audio Codecs. I am trying to edit MOV files on my Windows Media Player. I got the “3ivx” codec and now I can watch the video files but the sound does not work. I found out that the audio in my MOV files is “U-Law”. What codec can I download that will let me play the sound in Windows Media Player?
Extract duration from a U-LAW audio file with Java - …
https://stackoverflow.com/questions/1789826/extract-duration-from-a-u-law-audio-file-with-java
Show activity on this post. I'm trying to extract the duration from a audio file. This audio file is a U-LAW (G.711/MONO 8.000Hz). static AudioFormat ULAW_FORMAT = new AudioFormat (AudioFormat.Encoding.ULAW, 8000, 8, 1, 1, 8000, false); And all the time I'm receiving a exception:
G.711 - Wikipedia
https://en.wikipedia.org/wiki/G.711
G.711 is a narrowband audio codec originally designed for use in telephony that provides toll-quality audio at 64 kbit/s. G.711 passes audio signals in the range of 300–3400 Hz and samples them at the rate of 8,000 samples per second, with the …
G711.org - Telephony File Converter
Free online tool to convert MP3/WAV to G.711 u-law or a-law, G.722, or G.729 for BroadWorks, Asterisk, FreeSWITCH, CUCM, UCCX, and more! G711 File Converter This free tool will convert just about any DRM-free media file into audio that's compatible with most telephony vendors' Music on Hold and IVR Announcements.
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