Question about syntax for --sox−pipe with output to file

Question about syntax for --sox−pipe with output to file

[Pierow]

I am using -p to pipe a series of three SoX commands that generate three tones:

play "|sox -n -p synth .276 sine 1200 gain -1" "|sox -n -p synth .276
sine 900 gain -1" "|sox -n -p synth .380 sine 1200 gain -1"

I would like to output the resulting three tones to a WAV file.  I'm
sure that this is something that is easy to do but nothing that I have
tried seems to work.  I have read the man page and searched through
the archives of the mailing list but I can't seem to find anything
that works with the piped commands.

Is there a way to tell direct this output to a file instead of playing
to system audio?

Thanks!

------------------------------------------------------------------------------

Re: Question about syntax for --sox−pipe with output to file

[Pierow]

My apologies.  I had an error in my command that got clobbered when I
copied and pasted.  With that (admittedly very silly) mistake
corrected, I am now able to write the output directly to a file by
simply appending a filename.  Clearly I need more sleep.  :)


On Thu, Aug 4, 2016 at 7:57 PM, Pierow <pierow@thepyro.com> wrote:
> I am using -p to pipe a series of three SoX commands that generate three tones:
>
> play "|sox -n -p synth .276 sine 1200 gain -1" "|sox -n -p synth .276
> sine 900 gain -1" "|sox -n -p synth .380 sine 1200 gain -1"
>
> I would like to output the resulting three tones to a WAV file.  I'm
> sure that this is something that is easy to do but nothing that I have
> tried seems to work.  I have read the man page and searched through
> the archives of the mailing list but I can't seem to find anything
> that works with the piped commands.
>
> Is there a way to tell direct this output to a file instead of playing
> to system audio?
>
> Thanks!

------------------------------------------------------------------------------

Re: Question about syntax for --sox−pipe with output to file

[Eric Wong]

Pierow <pierow@thepyro.com> wrote:
> I am using -p to pipe a series of three SoX commands that generate three tones:
> 
> play "|sox -n -p synth .276 sine 1200 gain -1" "|sox -n -p synth .276
> sine 900 gain -1" "|sox -n -p synth .380 sine 1200 gain -1"
> 
> I would like to output the resulting three tones to a WAV file.  I'm
> sure that this is something that is easy to do but nothing that I have
> tried seems to work.  I have read the man page and searched through
> the archives of the mailing list but I can't seem to find anything
> that works with the piped commands.

See the short SYNOPSIS at the top of the manpage,
many people probably skip over it :)

> Is there a way to tell direct this output to a file instead of playing
> to system audio?

Same as play, almost:

sox "|sox -n -p synth .276 sine 1200 gain -1" \
	"|sox -n -p synth .276 sine 900 gain -1" \
	"|sox -n -p synth .380 sine 1200 gain -1" \
	output.wav

Basically, "play $INPUTS" is the same as "sox $INPUTS -t $FORMAT"

So if you use alsa, the following should behave just like play
did for you:

sox "|sox -n -p synth .276 sine 1200 gain -1" \
	"|sox -n -p synth .276 sine 900 gain -1" \
	"|sox -n -p synth .380 sine 1200 gain -1" \
	-t alsa

------------------------------------------------------------------------------

Re: Question about syntax for --sox−pipe with output to file

[Pierow]

Thank you Eric.  I appreciate the follow-up.

On Fri, Aug 5, 2016 at 5:38 AM, Eric Wong <normalperson@yhbt.net> wrote:
>
> See the short SYNOPSIS at the top of the manpage,
> many people probably skip over it :)
>
>> Is there a way to tell direct this output to a file instead of playing
>> to system audio?
>
> Same as play, almost:
>
> sox "|sox -n -p synth .276 sine 1200 gain -1" \
>         "|sox -n -p synth .276 sine 900 gain -1" \
>         "|sox -n -p synth .380 sine 1200 gain -1" \
>         output.wav
>
> Basically, "play $INPUTS" is the same as "sox $INPUTS -t $FORMAT"
>
> So if you use alsa, the following should behave just like play
> did for you:
>
> sox "|sox -n -p synth .276 sine 1200 gain -1" \
>         "|sox -n -p synth .276 sine 900 gain -1" \
>         "|sox -n -p synth .380 sine 1200 gain -1" \
>         -t alsa

------------------------------------------------------------------------------