Re: [linux-audio-dev] Measuring playback and capture quality.

From: James Courtier-Dutton <James@email-addr-hidden>
Date: Sat Apr 08 2006 - 22:33:31 EEST

James Courtier-Dutton wrote:
> fons adriaensen wrote:
>> On Sat, Apr 08, 2006 at 05:17:14PM +0100, James Courtier-Dutton wrote:
>>> Hi,
>>>
>>> Are there any linux tools out there that will sample the line in, and
>>> display a detailed spectrum scope of the detected sound?
>>>
>>> E.g.
>>> http://www.pcavtech.com/soundcards/ct462048/SNR_LB_FS.gif
>>>
>>> Eventually I wish to send a test signal from one sound card to
>>> another and compare the frequency response/noise etc. of the line
>>> input of the card.
>>
>> For 'technical' measurements: JAAA
>> For 'musical' measurements: JAPA
>>
>> Both at <http://users.skynet.be/solaris/linuxaudio>
>>
>> The JAAA release is quite old now and shows it. Improved looks version
>> soon.
>> Don't forget the shared libs at the bottom of the page.
>>
>
> Neither of those applications work.
> I have ardour working fine with stereo in/stereo out.
>
> jaaa -J seems to talk to jack, but does not capture or play any sound.
> jaaa -A fails to even open the alsa device.
>
> jdelay also does not work. Responding with "Signal below threshold..."
>
> Have these application actually been tested with jackd recently?
>
> James
>
>
My mistake. Please ignore.
Received on Sun Apr 9 00:15:09 2006

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