[LAU] sndfile-waveform PNG generator ?

[Vytautas Jancauskas]

import matplotlib.pyplot as plt
import scipy.io.wavfile as wav
import sys

if __name__ == '__main__':
    data = wav.read(sys.argv[1])
    plt.plot(data[1])
    plt.show()

The python code to show wave data from a command line file name is above.
You can modify it easily to output a .png image. Read matplotlib
documentation.

On Tue, Jan 10, 2012 at 4:00 PM, Vytautas Jancauskas <unaudio at gmail.com>wrote:

>
>
> ---------- Forwarded message ----------
> From: Vytautas Jancauskas <unaudio at gmail.com>
> Date: Tue, Jan 10, 2012 at 3:59 PM
> Subject: Re: [LAU] sndfile-waveform PNG generator ?
> To: Robin Gareus <robin at gareus.org>
>
>
> It's fairly trivial to write one your own with python using scipy. Should
> be in the ballpark of 20 lines or so.
>
>
> On Tue, Jan 10, 2012 at 2:47 PM, Robin Gareus <robin at gareus.org> wrote:
>
>> Hi *,
>>
>> Is there a command-line tool akin to `sndfile-spectrogram` that
>> generates an image (preferably PNG) of an audio wave-form?
>>
>> I found endless GUI apps, but command-line tools are scarce.
>>
>> TIA
>> robin
>> _______________________________________________
>> Linux-audio-user mailing list
>> Linux-audio-user at lists.linuxaudio.org
>> http://lists.linuxaudio.org/listinfo/linux-audio-user
>>
>
>
>
> --
> "Cheshire-Puss," she began, "would you tell me, please,
> which way I ought to go from here?"
> "That depends a good deal on where you want to get to," said the Cat.
> "I don't care much where--" said Alice.
> "Then it doesn't matter which way you go," said the Cat.
>
>
>
>
> --
> "Cheshire-Puss," she began, "would you tell me, please,
> which way I ought to go from here?"
> "That depends a good deal on where you want to get to," said the Cat.
> "I don't care much where--" said Alice.
> "Then it doesn't matter which way you go," said the Cat.
>
>


-- 
"Cheshire-Puss," she began, "would you tell me, please,
which way I ought to go from here?"
"That depends a good deal on where you want to get to," said the Cat.
"I don't care much where--" said Alice.
"Then it doesn't matter which way you go," said the Cat.
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