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Re: [AUDITORY] Effect of sidetone in lowering one's own voice



Hi Deep,
The paper mentioned in my previous email, Lane, H. & Tranel, B. The Lombard sign and the role of hearing in speech. Journal of Speech, Language and Hearing Research 14, 677 (1971), summarizes the Fletcher effect, Lombard's papers and other early research (circa 1970) in the area. It is a fairly long paper, but quite comprehensive.
Cheers,
Manuj 

On Sat, Jun 29, 2019 at 6:31 AM D Sen <dsen@xxxxxxxx> wrote:
Thanks Ole. (Also to Dhurandar and JJ who responded outside of the list).

I am interested in the Fletcher Effect and the Lombard effect. Both of those show variations in the speaker’s own voice (level, format shifts, etc) in the presence of noise or sidetone (i.e. own voice fed back into the ear usually through headphones).

Is there evidence to suggest that the Fletcher and the Lombard effect are essentially the same effect - where the perceived SNR of the ‘own voice’ is causing a level rise in the ‘own voice’? 

Also, while there is evidence to suggest that ‘own voice’ is raised in the presence of noise or ‘lower feedback of the own voice through sidetone’, is there evidence of lowering the voice to below nominal/ambient levels when the sidetone is raised substantially (where in the extreme case, the speaker would be whispering when the sidetone is played back at a high enough level).

Thanks,
Deep

On Jun 27, 2019, at 5:48 AM, Ole Adrian Heggli <oleheggli@xxxxxxxxx> wrote:

Hi Deep,

That depends on whether you are asking about a relative/absolute decrease of pitch or amplitude?

Might be of interest, if it's pitch:

Dixon Ward, W., & Burns, E. M. (1975). Pitch performance in singing without auditory feedback. The Journal of the Acoustical Society of America, 58(S1), S116-S116.
Mürbe, D., Pabst, F., Hofmann, G., & Sundberg, J. (2002). Significance of auditory and kinesthetic feedback to singers' pitch control. Journal of Voice16(1), 44-51.  


Cheers,
Ole Adrian Heggli


tor. 27. jun. 2019 kl. 06:21 skrev D Sen <dsen@xxxxxxxx>:
Are folks aware of work that studies he lowering of one’s own voice when there is feedback of their voice through side-tone (through headphones)?


Thanks,
Deep