Topics

Audio playback issue on new Macbook Air

Lars Hinrichs
 

I have a new Macbook Air. When I play back audio, the sound is extremely clipped. This happens with every sound file, regardless of how loud the signal is in the file. (I use only WAV files.) The same sound files play back fine in, for example, QuickTime or Audacity.

I tried installing an older version of Praat, but it makes no difference - the same problem occurs there.

For a minute I thought the problem might be due to the fact that the Macbook Air is a smaller computer, has a solid-state drive and maybe a slower processor. (I did get 16 GB of RAM though...)  So I almost tried to get my department to trade the Air for a Macbook Pro. But then, I noticed that some of my students, who use Macbook Pros (fairly new ones) have the same issue!

Is this a known issue? Is there anything I could change in the setup or installation to get it to play back better audio on this machine? 



Boersma Paul
 

On 27 Nov 2019, at 20:46, Lars Hinrichs <@LarsHinrichs> wrote:

I have a new Macbook Air. When I play back audio, the sound is extremely clipped.
This is known issue. A fix is described on the Mac download page. Please tell us whether that helps.
_____

Paul Boersma
Professor of Phonetic Sciences, University of Amsterdam

Visiting address: Spuistraat 134, room 632, Amsterdam
Mail: P.O. Box 1642, 1000BP Amsterdam, The Netherlands
Website: http://www.fon.hum.uva.nl/paul/

Z. Dajem
 

Dear Paul,
Is there any training programme of Praat in London please? Or anywhere else?

Regards,
Zen

On 27 Nov 2019, at 11:21 pm, Boersma Paul <paul.boersma@...> wrote:

On 27 Nov 2019, at 20:46, Lars Hinrichs <@LarsHinrichs> wrote:

I have a new Macbook Air. When I play back audio, the sound is extremely clipped.
This is known issue. A fix is described on the Mac download page. Please tell us whether that helps.
_____

Paul Boersma
Professor of Phonetic Sciences, University of Amsterdam

Visiting address: Spuistraat 134, room 632, Amsterdam
Mail: P.O. Box 1642, 1000BP Amsterdam, The Netherlands
Website: http://www.fon.hum.uva.nl/paul/










Lars Hinrichs
 

This worked. Issue fixed! 

Thanks very much.

Lars

mary5102
 

I have a student with a new MacBook Air with the same problem. She could play sounds in other software just fine, but in Praat it was severely clipped. We deleted reinstalled prat, installed an older version. Didn't work. My slightly older MacBook Pro (2 years) is fine.

Daniel McCloy
 

Hi Mary, Please direct your student to point #4 on http://www.fon.hum.uva.nl/praat/download_mac.html and let us know if that doesn't solve the problem.