US 11,990,144 B2
Reducing perceived effects of non-voice data in digital speech
John C. Hardwick, Acton, MA (US)
Assigned to Digital Voice Systems, Inc., Westford, MA (US)
Filed by Digital Voice Systems, Inc., Westford, MA (US)
Filed on Jul. 28, 2021, as Appl. No. 17/387,412.
Prior Publication US 2023/0043682 A1, Feb. 9, 2023
Int. Cl. G10L 19/00 (2013.01); G10L 15/24 (2013.01); G10L 19/005 (2013.01); G10L 19/02 (2013.01); G10L 25/18 (2013.01)
CPC G10L 19/0208 (2013.01) [G10L 15/24 (2013.01); G10L 19/005 (2013.01); G10L 25/18 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for embedding non-voice data in a voice bit stream that includes frames of voice bits, the method comprising:
selecting a frame of voice bits to carry the non-voice data;
placing non-voice identifier bits in a first portion of the voice bits in the selected frame; and
placing the non-voice data in a second portion of the voice bits in the selected frame;
wherein said non-voice identifier bits are employed to reduce a perceived effect of the non-voice data on audible speech produced from the voice bit stream.
 
13. A speech encoder configured to embed non-voice data in a voice bit stream that includes frames of voice bits, the speech encoder being configured to:
select a frame of voice bits to carry the non-voice data;
place non-voice identifier bits in a first portion of the voice bits in the selected frame; and
place the non-voice data in a second portion of the voice bits in the selected frame;
wherein said non-voice identifier bits are employed to reduce a perceived effect of the non-voice data on audible speech produced from the voice bit stream.