Speaker-test improvements

Speaker-test improvements

[James Courtier-Dutton]

Hi,

I have got some voice samples saying things like "Front Right" etc. that
I want the speaker-test program to output instead of the loud sine wave
it currently does. The sine wave will stay there as an option as I find
it useful for some things.

The samples are 10 .wav files in 48khz mono S16_LE format.
Where abouts should I put them in the CVS, and where abouts should they
get installed to, so that speaker-test can find them?

Cheers

James


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Re: Speaker-test improvements

[Takashi Iwai]

At Wed, 13 Apr 2005 21:02:31 +0100,
James Courtier-Dutton wrote:
> 
> Hi,
> 
> I have got some voice samples saying things like "Front Right" etc. that
> I want the speaker-test program to output instead of the loud sine wave
> it currently does. The sine wave will stay there as an option as I find
> it useful for some things.
> 
> The samples are 10 .wav files in 48khz mono S16_LE format.
> Where abouts should I put them in the CVS, and where abouts should they
> get installed to, so that speaker-test can find them?

That's great.  (Is the voice female or male?  We might need both to be
PC ;)

The suitable location of such data files would be something like
$(datadir)/sounds/alsa or $(datadir)/sounds/speaker-test. 


Takashi


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Re: Speaker-test improvements

[Måns Rullgård]

Takashi Iwai <tiwai@suse.de> writes:

> At Wed, 13 Apr 2005 21:02:31 +0100,
> James Courtier-Dutton wrote:
>> 
>> Hi,
>> 
>> I have got some voice samples saying things like "Front Right" etc. that
>> I want the speaker-test program to output instead of the loud sine wave
>> it currently does. The sine wave will stay there as an option as I find
>> it useful for some things.
>> 
>> The samples are 10 .wav files in 48khz mono S16_LE format.
>> Where abouts should I put them in the CVS, and where abouts should they
>> get installed to, so that speaker-test can find them?
>
> That's great.  (Is the voice female or male?  We might need both to be
> PC ;)

Not to mention all the languages of the world.

-- 
Måns Rullgård
mru@inprovide.com



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Re: Re: Speaker-test improvements

[Martin Langer]

On Thu, Apr 14, 2005 at 03:23:33PM +0200, Måns Rullgård wrote:
> Takashi Iwai <tiwai@suse.de> writes:
> 
> > At Wed, 13 Apr 2005 21:02:31 +0100,
> > James Courtier-Dutton wrote:
> >> 
> >> Hi,
> >> 
> >> I have got some voice samples saying things like "Front Right" etc. that
> >> I want the speaker-test program to output instead of the loud sine wave
> >> it currently does. The sine wave will stay there as an option as I find
> >> it useful for some things.
> >> 
> >> The samples are 10 .wav files in 48khz mono S16_LE format.
> >> Where abouts should I put them in the CVS, and where abouts should they
> >> get installed to, so that speaker-test can find them?
> >
> > That's great.  (Is the voice female or male?  We might need both to be
> > PC ;)
> 
> Not to mention all the languages of the world.

But then a morse code matrix would be more efficient :)

.... Front left
..._ Front right
.._. Back left
..__ Back right

martin


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Re: Speaker-test improvements

[James Courtier-Dutton]

Takashi Iwai wrote:
> At Wed, 13 Apr 2005 21:02:31 +0100,
> James Courtier-Dutton wrote:
> 
>>Hi,
>>
>>I have got some voice samples saying things like "Front Right" etc. that
>>I want the speaker-test program to output instead of the loud sine wave
>>it currently does. The sine wave will stay there as an option as I find
>>it useful for some things.
>>
>>The samples are 10 .wav files in 48khz mono S16_LE format.
>>Where abouts should I put them in the CVS, and where abouts should they
>>get installed to, so that speaker-test can find them?
> 
> 
> That's great.  (Is the voice female or male?  We might need both to be
> PC ;)
> 
> The suitable location of such data files would be something like
> $(datadir)/sounds/alsa or $(datadir)/sounds/speaker-test. 
> 
> 
> Takashi
> 
> 

Thank you. The current samples are here:
http://www.alsa-project.org/~james/speaker-test/samples/

I will hopefully modify the speaker-test program to use them soon.

James




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Re: Re: Speaker-test improvements

[Takashi Iwai]

At Thu, 14 Apr 2005 13:41:47 -0700 (PDT),
Tom Watson wrote:
> 
> Måns Rullgård <mru@inprovide.com> Writes:
> 
> 
> > Takashi Iwai <tiwai@suse.de> writes:
> >
> >> At Wed, 13 Apr 2005 21:02:31 +0100,
> >> James Courtier-Dutton wrote:
> >>> 
> >>> Hi,
> >>> 
> >>> I have got some voice samples saying things like "Front Right" etc. that
> >>> I want the speaker-test program to output instead of the loud sine wave
> >>> it currently does. The sine wave will stay there as an option as I find
> >>> it useful for some things.
> >>> 
> >>> The samples are 10 .wav files in 48khz mono S16_LE format.
> >>> Where abouts should I put them in the CVS, and where abouts should they
> >>> get installed to, so that speaker-test can find them?
> >>
> >> That's great.  (Is the voice female or male?  We might need both to be
> >> PC ;)
> >
> >Not to mention all the languages of the world.
> >
> >-- 
> >Måns Rullgård
> >mru@inprovide.com
> 
> 
> I made up a sound file similar to this and it was quite helpful.  One of the
> files had individual voices (one at a time) to identify the speakers, and being
> with the proper 4-channel specifications for broadcast they were identified as
> "left front", "right front", "left BACK" and "right BACK".  In doing so it
> eliminated the abbreviation of "R" being both "rear" and "right" (not very
> clear).
> 
> Another test was having all of the channels identified "simultaneously",
> usually in a loop.  This allowed me to play with mixer controls which always
> get mixed up and get the correct things in the correct places.  When you hook
> up sound cards and amplifiers and other external gear, it helps to have the
> channel identified.  Some mixer controls on some cards fold the "back" channels
> into the "front" channels, and then you need to poke around in your mixer
> program ('alsamixer' is but one) to turn on/off "mutes" to get it right. 

This sounds like a good idea.

> Having the speaker test "loop" with spoken words was VERY helpful to me.
> 
> The only "problem" I see is having the samples at one speed.  Sometimes it is
> helpful to have the program send the sounds out at a specific speed to the ALSA
> api, where it does further operations (another re-sampling).

It should be fine when you specify the PCM with "plug" layer, e.g.

	% speaker-test -Dplug:surround51 -c6

> Another useful option on a sequential test would be to have the channel
> identified on standard output at the beginning of the spoken words.
> 
> I really don't see a problem with the "voice" being male and English.  I
> suspect that since it is ONLY A TEST, we don't need to be PC at all.

Don't take my comment with a smiley so serious :)

> Perhaps the sound files for the sounds (mono for each, merged in the program)
> can be put in such a place that they can be altered to suit the user.  It may
> be that "LFE" may not be the desired name for the particular output.  There may
> be 8 or more channels to identify, and maybe having them labeled "one"... would
> be "better".  Given that more than one sound card might be used, and all slaved
> thru plugins, it could go higher.  Who knows.

Yes, that would be helpful, too.


Takahsi


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Re: Re: Speaker-test improvements

[Takashi Iwai]

At Thu, 23 Jun 2005 18:20:59 +0800,
Raymond wrote:
> 
> 
> >>>Takashi Iwai <tiwai@suse.de> writes:
> >>>
> >>>
> >>>>At Wed, 13 Apr 2005 21:02:31 +0100,
> >>>>James Courtier-Dutton wrote:
> >>>>
> >>>>>Hi,
> >>>>>
> >>>>>I have got some voice samples saying things like "Front Right" etc. that
> >>>>>I want the speaker-test program to output instead of the loud sine wave
> >>>>>it currently does. The sine wave will stay there as an option as I find
> >>>>>it useful for some things.
> >>>>>
> >>>>>The samples are 10 .wav files in 48khz mono S16_LE format.
> >>>>>Where abouts should I put them in the CVS, and where abouts should they
> >>>>>get installed to, so that speaker-test can find them?
> >>>>
> 
> It seem most onboard audio (intel8x0,hda) have ".channels_min = 2".
> 
> You may need to merge the mono "Left" and "Right" wav to a stereo
> left_right.wav
> 
> 
> static snd_pcm_hardware_t snd_intel8x0_stream =
> {
>      .channels_min =        2,
>      .channels_max =        2,
> }
> 
> 
> aplay -D hw:1,0 speaker-test/samples/*.wav
> Playing WAVE 'speaker-test/samples/Front_Center.wav' : Signed 16 bit
> Little Endian, Rate 48000 Hz, Mono
> aplay: set_params:887: Channels count non available
> 
> 
> aplay -Dplughw:1,0 speaker-test/samples/*.wav
> Playing WAVE 'speaker-test/samples/Front_Left.wav' : Signed 16 bit
> Little Endian, Rate 48000 Hz, Mono
> Playing WAVE 'speaker-test/samples/Front_Right.wav' : Signed 16 bit
> Little Endian, Rate 48000 Hz, Mono

Hmm, I don't see the point.

If you have stereo output and output a mono stream, it's always split
to left and right.   The mono stream should be used together with -s
option.


Takashi


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