This is a web aplication that allow to split every channel on WAV audio file into separate files. You are able to download them as a ZIP file. There is also a function that returns a lot of data hidden in header of .wav files (RIFF tables). Requires Flask.
When loading WAV file the output of console will be:
['/wav-splitter/upload/6ch.wav', b'RIFF', '2.95 MB', 3089016, b'WAVE', b'fmt ', b'(\x00\x00\x00', 65534, (6,), (44100,), (529200,), (12,), (16,), b'\x16\x00\x10\x00', (63,), 1, 0, 0, 16, 128]
The following list of files will be zipped:
export/channel_0.wav
export/channel_1.wav
export/channel_2.wav
export/channel_3.wav
export/channel_4.wav
export/channel_5.wav
export.zip file is created successfully!
| ID | key | type / notes |
|---|---|---|
| 1 | filename |
path to uploaded file |
| 2 | ChunkID |
First four bytes are ChunkID which must be "RIFF" in ASCII |
| 3 | ChunkSizeString |
Total Size of File in Bytes - 8 Bytes |
| 4 | Format |
"WAVE" in ASCII |
| 5 | SubChunk1ID |
"fmt " in ASCII |
| 6 | SubChunk1SizeString |
Should be 16 (PCM, Pulse Code Modulation) |
| 7 | AudioFormatString |
Should be 1 -> (PCM) |
| 8 | NumChannelsString |
Should be 1 for mono, 2 for stereo... |
| 9 | SampleRateString |
Should be 44100 (CD sampling rate) |
| 10 | ByteRateString |
SampleRateString * NumChanString * NumChannelsString |
| 11 | BlockAlignString |
NumChan * 2 |
| 12 | BitsPerSampleString |
16 (CD has 16-bits per sample for each channel) |
| 13 | SubChunk2ID=file |
"data" in ASCII |
| 14 | SubChunk2SizeString |
Number of Data Bytes, Same as DataSize |
| 15 | S1String |
Read first sample data, number between -32768 and 32767 |
| 16 | S2String |
Read second saple data |
| 17 | S3String |
Read third sample data |
| 18 | S4String |
Read fourth sample data |
| 19 | S5String |
Read fifth sample data |
Source: http://pythonaudio.blogspot.com/2014/04/3-reading-wave-file.html
- Bootstrap - https://github.com/twbs/bootstrap
- particles.js - https://github.com/VincentGarreau/particles.js
- bootstrap-filestyle.js - https://github.com/markusslima/bootstrap-filestyle
Example WAV files from: http://www-mmsp.ece.mcgill.ca/Documents/AudioFormats/WAVE/Samples.html