Audio Communication Method And Device
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Accused Products
Abstract
An audio communication device includes a plurality of encoding units and decoding units, and switches the encoding format from one to another according to the useable transmission band or to a user audio quality request or to a delay request. The audio encoded data that is received is decoded by selecting an optimal decoding unit according to the encoding format identifier added to the data or according to set information notified from audio communication device 201 of the communication partner. The audio data decoded is temporality stored in audio data buffer 216 and reproduced. The amount of audio data stored in the audio data buffer is controlled so that audio is reproduced without pause.
43 Citations
112 Claims
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1-68. -68. (canceled)
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69. An audio communication method comprising the steps of:
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encoding each piece of audio data to be transmitted by using plural kinds of accessible encoding formats;
transmitting at least one kind of audio encoded data among audio encoded data, which is said audio data that is encoded, while performing at least one of;
(a) using a different session for each encoding format; and
(b) adding information to identify said encoding format;
when said audio encoded data is received, decoding said audio encoded data by using a suitable decoding format for said audio encoded data among plural kinds of accessible decoding formats in accordance with at least one piece of information among;
(c) information obtained by a call connection process and related to encoding;
(d) preset information related to encoding;
(e) information added to received audio encoded data to identify the encoding format; and
(f) information of said session used to receive encoded data;
temporarily storing said audio data that is encoded in a audio data buffer; and
sequentially reading said audio data from said audio data buffer and reproducing said audio data. - View Dependent Claims (70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82)
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83. An audio communication device, comprising:
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an audio acquisition unit for generating audio data digitized by a predetermined sampling frequency from audio to be transmitted;
a plurality of encoding units that each encode said audio data by using plural kinds of accessible encoding formats;
a transmission unit for transmitting at least one kind of audio encoded data among audio encoded data, which is said audio data that is encoded while performing at least one of;
(a) using a different session for each encoding format; and
(b) adding information to identify said encoding format;
a plurality of decoding units, when said audio encoded data is received, that decodes said audio encoded data by using a suitable decoding format for said audio encoded data among plural kinds of accessible decoding format, and that decodes each of said audio encoded data by using a different decoding formats, in accordance with at least one piece of information among;
(c) information obtained by a call connection process and related to encoding;
(d) preset information related to encoding;
(e) information added to received audio encoded data to identify the encoding format; and
(f) information of said session used to receive encoded data;
an audio data buffer that temporarily stores audio data decoded by said decoding unit;
an audio reproduction unit for sequentially reading said audio data from said audio data buffer and for reproducing the audio data; and
a setting/call connection unit for controlling switches of said encoding format and said decoding format. - View Dependent Claims (84, 85, 86, 93, 94, 95, 96, 97, 98)
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99. A computer readable recording medium storing a program causing a computer that mutually transmits and receives audio through a network to execute the processes comprising:
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encoding each piece of audio data digitalized by a predetermined sampling frequency as a subject to be transmitted by using plural kinds of accessible encoding formats;
transmitting at least one kind of audio encoded data among audio encoded data, which is audio data encoded, from a transmission unit, while performing at least one of;
(a) using a different session for each encoding format; and
(b) adding information to identify said encoding format;
when said audio encoded data is received, decoding said audio encoded data by a suitable decoding format for said audio encoded data among plural kinds of accessible decoding formats in accordance with at least one piece of information among;
(c) information obtained by a call connection process and related to encoding;
(d) preset information related to encoding;
(e) information added to received audio encoded data to identify the encoding format; and
(f) information of said session used to receive encoded data;
temporarily storing said audio data that is encoded in an audio data buffer; and
sequentially reading said audio data from said audio data buffer and reproducing said audio data. - View Dependent Claims (100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112)
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Specification