Newsgroups: comp.speech,comp.dsp
Path: cantaloupe.srv.cs.cmu.edu!das-news.harvard.edu!news2.near.net!MathWorks.Com!europa.eng.gtefsd.com!howland.reston.ans.net!EU.net!uknet!festival!edcogsci!sjf
From: sjf@cogsci.ed.ac.uk (Simon Jensen-Fellows)
Subject: Re: Acoustic-phonetic analysis software sought for Macintosh
Message-ID: <CvILFI.n4q@cogsci.ed.ac.uk>
Organization: Centre for Cognitive Science, Edinburgh, UK
References: <3429d3$c4m@netnews.upenn.edu>
Date: Fri, 2 Sep 1994 18:16:28 GMT
Lines: 42
Xref: glinda.oz.cs.cmu.edu comp.speech:3201 comp.dsp:13078

In article <3429d3$c4m@netnews.upenn.edu> kkarins@unagi.cis.upenn.edu (Krisjanis Karins) writes:
>I am looking for a sofware program which can do acoustic-phonetic analysis
>on a Macintosh. 
>
>The program should be able to do the following:
>
>	(1) show the waveform
>	(2) make a spectrogram
>	(3) make a pitchtrack

There are two pretty good ones that I use: SoundEdit Pro and
Signalyze. My favourite is Signalyze but I still hate the interface.

>
>I am looking for a relatively inexpensive program, although any information
>is very welcome.  

I have no idea about US price, but I believe that you can get
Signalyze at an educational price. (I'm pretty sure the FAQ gives
prices though !)

>In addition, I would like to know if there are any special hardware 
>requirements for digitizing a speech signal from an analog cassette 
>recorder into the Mac.  If so, where can such hardware be purchased?

Depends which Mac you're using and what you want to do: most newer
Macs have a microphone socket and support 8bit 22Khz sampling - you
may have to contend with the autogain system which appears to operate
in h/w - i.e. your sample gets equalized. This may be a problem for
some non-trivial tasks. - If anyone has any ideas about bypassing
this, PLEASE TELL ME !!!!!!!)

The sexier AV Macs are made for speech work - I think the spec is
16bit 44Khz ~CD quality. And no equalization problems. In the absence
of any built in hardware, the best cost/performance solution is
probably Farrallon's 'box' - again I don't have pricing ... there is
also Voice Navigator...(The best solution if you have a Power mac is
almost certainly the AV upgrade)

Simon.


