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Conceptual approach to extracting EGG derivative info

Ian Howell
 

Hi friends, After using our glottal enterprises egg unit for years with Voce vista video pro, I’d really like to be able to use Praat instead for more granular analysis. I’m adept at scripting, modifying and querying a table object, and I understand how to extract the right channel, convert it to an EGG object, and extract the derivative signal. 


if I have a ling audio/egg file, and I want to extract the time stamps of every pair of close/open events to write to a table for further statistical analysis, can someone please walk me through the steps conceptually? Scripts are nice too, but I’d appreciate an explanation of the best practices for this process, what objects are created and why, and how to best optimize the approach. 


many thanks in advance, ian

New England conservatory
cleveland institute of music 
Ian Howell
 

bumping in case this was missed
Boersma Paul
 

try the following sequence:

- select a Sound that contains a channel that is to be interpreted as an electroglottogram;

- choose "Extract Electroglottogram..." from the Convert menu;

- choose "Get closed glottis intervals...", then "Into TextGrid"

- choose "List..." from the Tabulate menu



On 8 Nov 2022, at 23:43, Ian Howell via groups.io <Ian.howell@...> wrote:

Hi friends, After using our glottal enterprises egg unit for years with Voce vista video pro, I’d really like to be able to use Praat instead for more granular analysis. I’m adept at scripting, modifying and querying a table object, and I understand how to extract the right channel, convert it to an EGG object, and extract the derivative signal. 


if I have a ling audio/egg file, and I want to extract the time stamps of every pair of close/open events to write to a table for further statistical analysis, can someone please walk me through the steps conceptually? Scripts are nice too, but I’d appreciate an explanation of the best practices for this process, what objects are created and why, and how to best optimize the approach. 


many thanks in advance, ian

New England conservatory
cleveland institute of music 


_____

Paul Boersma
Professor of Phonetic Sciences
University of Amsterdam
Spuistraat 134, room 632
1012VB Amsterdam, The Netherlands
http://www.fon.hum.uva.nl/paul/
Ian Howell
 

Hi Paul, thanks so much for this response. Is there a best practice approach to use the derivative or first central difference rather than a criterion level?


On Nov 14, 2022, at 9:20 AM, Boersma Paul via groups.io <p.p.g.boersma@...> wrote:

 try the following sequence:

- select a Sound that contains a channel that is to be interpreted as an electroglottogram;

- choose "Extract Electroglottogram..." from the Convert menu;

- choose "Get closed glottis intervals...", then "Into TextGrid"

- choose "List..." from the Tabulate menu



On 8 Nov 2022, at 23:43, Ian Howell via groups.io <Ian.howell@...> wrote:

Hi friends, After using our glottal enterprises egg unit for years with Voce vista video pro, I’d really like to be able to use Praat instead for more granular analysis. I’m adept at scripting, modifying and querying a table object, and I understand how to extract the right channel, convert it to an EGG object, and extract the derivative signal. 


if I have a ling audio/egg file, and I want to extract the time stamps of every pair of close/open events to write to a table for further statistical analysis, can someone please walk me through the steps conceptually? Scripts are nice too, but I’d appreciate an explanation of the best practices for this process, what objects are created and why, and how to best optimize the approach. 


many thanks in advance, ian

New England conservatory
cleveland institute of music 


_____

Paul Boersma
Professor of Phonetic Sciences
University of Amsterdam
Spuistraat 134, room 632
1012VB Amsterdam, The Netherlands
http://www.fon.hum.uva.nl/paul/
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