Recording method, recording system, recording program storage medium, acoustic processing method, and acoustic processing device

1. A recording method, comprising:

acquiring each piece of acoustic data representing a sound from each of a plurality of portable terminal devices, the each of the plurality of portable terminal devices comprising a sound pickup device configured to generate the piece of acoustic data and configured to share management information with one or more of the other portable terminal devices, wherein the management information is stored in respective portable terminal devices and the management information includes one or more of: (i) a sound recording status information indicating a sound recording status of the respective piece of acoustic data and (ii) control variable information specifying a numerical value of a variable, the management information applied by the respective portable terminal devices to edit the respective piece of acoustic data;

executing synchronization processing for synchronizing the respective pieces of acoustic data; and

executing mixing processing for mixing a plurality of pieces of acoustic data for which the synchronization processing has been executed, and

in the synchronization processing, adjusting the respective pieces of acoustic data so that a cross-correlation between the respective pieces of acoustic data becomes maximum.

2. The recording method according to claim 1 , wherein:

the executing of the synchronization processing and the executing of the mixing processing are carried out by at least one processor comprised in an acoustic processing device communicable to/from the each of the plurality of portable terminal devices through a communication network; and

the executing of the synchronization processing executes the synchronization processing for the pieces of acoustic data received from the plurality of portable terminal devices through the communication network, respectively.

3. The recording method according to claim 1 , further comprising editing the piece of acoustic data generated by the sound pickup device,

wherein the executing of the synchronization processing comprises acquiring the edited pieces of acoustic data from the plurality of portable terminal devices, respectively, and executing the synchronization processing for synchronizing the respective acquired pieces of acoustic data.

4. The recording method according to claim 3 , wherein:

the plurality of portable terminal devices are each configured to perform short-range wireless communications to/from another terminal among the plurality of portable terminal devices; and

the editing comprises editing the piece of acoustic data by using information acquired from the other terminal through the short-range wireless communications.

5. The recording method according to claim 1 , wherein:

the plurality of portable terminal devices are each configured to perform short-range wireless communications to/from another terminal among the plurality of portable terminal devices; and

the recording method further comprises starting to record the piece of acoustic data generated by the sound pickup device in accordance with an instruction transmitted from the other terminal through the short-range wireless communications.

6. A recording system, comprising:

a plurality of portable terminal devices, each of the plurality of portable terminal devices comprising a sound pickup device configured to generate a piece of acoustic data representing a sound and configured to share management information with one or more of the other portable terminal devices, wherein the management information is stored in respective portable terminal devices and the management information includes one or more of: (i) a sound recording status information indicating a sound recording status of the respective piece of acoustic data and (ii) control variable information specifying a numerical value of a variable, the management information applied by the respective portable terminal devices to edit the respective piece of acoustic data;

at least one processor executing stored instructions to:

acquire the pieces of acoustic data from the plurality of portable terminal devices, respectively, and execute synchronization processing for synchronizing the respective pieces of acoustic data; and

execute mixing processing for mixing a plurality of pieces of acoustic data for which the synchronization processing has been executed, and

in the synchronization processing, adjust the respective pieces of acoustic data so that a cross-correlation between the respective pieces of acoustic data becomes maximum.

7. The recording system according to claim 6 , wherein the at least one processor is comprised in an acoustic processing device communicable to/from the each of the plurality of portable terminal devices through a communication network, and executes the synchronization processing for the pieces of acoustic data received from the plurality of portable terminal devices through the communication network, respectively.

8. The recording system according to claim 6 , wherein:

the each of the plurality of portable terminal devices is configured to edit the piece of acoustic data generated by the sound pickup device; and

the at least one processor further executes instructions to acquire the edited pieces of acoustic data from the plurality of portable terminal devices, respectively, and execute the synchronization processing for synchronizing the respective acquired pieces of acoustic data.

9. The recording system according to claim 8 , wherein:

the plurality of portable terminal devices are each configured to perform short-range wireless communications to/from another terminal among the plurality of portable terminal devices; and

edit the piece of acoustic data by using information acquired from the other terminal through the short-range wireless communications.

10. The recording system according to claim 6 , wherein:

the plurality of portable terminal devices are each configured to perform short-range wireless communications to/from another terminal among the plurality of portable terminal devices; and

the each of the plurality of portable terminal devices starts to record the piece of acoustic data generated by the sound pickup device in accordance with an instruction transmitted from the other terminal through the short-range wireless communications.

11. A non-transitory computer-readable storage medium having stored thereon a recording program which, when executed by at least one processor carries out instructions to:

acquire each piece of acoustic data representing a sound from each of a plurality of portable terminal devices, the each of the plurality of portable terminal devices comprising a sound pickup device configured to generate the piece of acoustic data and configured to share management information with one or more of the other portable terminal devices, wherein the management information is stored in respective portable terminal devices and the management information includes one or more of: (i) a sound recording status information indicating a sound recording status of the respective piece of acoustic data and (ii) control variable information specifying a numerical value of a variable, the management information applied by the respective portable terminal devices to edit the respective piece of acoustic data;

execute synchronization processing for synchronizing the respective pieces of acoustic data; and

execute mixing processing for mixing a plurality of pieces of acoustic data for which the synchronization processing has been executed, and

in the synchronization processing, adjust the respective pieces of acoustic data so that a cross-correlation between the respective pieces of acoustic data becomes maximum.

12. An acoustic processing method, comprising:

acquiring a plurality of pieces of acoustic data from a plurality of terminal devices and each of the plurality of terminal devices configured to share management information with one or more of the other terminal devices, wherein the management information is stored in respective terminal devices and the management information includes one or more of: (i) a sound recording status information indicating a sound recording status of the respective piece of acoustic data and (ii) control variable information specifying a numerical value of a variable, the management information applied by the respective terminal devices to edit the respective piece of acoustic data;

synchronizing the acquired plurality of pieces of acoustic data; and

mixing the plurality of pieces of acoustic data for which the synchronizing has been executed, and

in the synchronizing, adjusting the respective pieces of acoustic data so that a cross-correlation between the respective pieces of acoustic data becomes maximum.

13. An acoustic processing device, comprising:

at least one processor executing stored instructions to:

acquire a plurality of pieces of acoustic data from a plurality of terminal devices and each of the plurality of terminal devices configured to share management information with one or more of the other terminal devices, wherein the management information is stored in respective terminal devices and the management information includes one or more of: (i) a sound recording status information indicating a sound recording status of the respective piece of acoustic data and (ii) control variable information specifying a numerical value of a variable, the management information applied by the respective terminal devices to edit the respective piece of acoustic data;

execute synchronizing the acquired plurality of pieces of acoustic data; and

mix the plurality of pieces of acoustic data for which the synchronizing has been executed, and

in the synchronization, adjust the respective pieces of acoustic data so that a cross-correlation between the respective pieces of acoustic data becomes maximum.

14. The recording method according to claim 1 , wherein the sound recording status information specifies a volume of the piece of acoustic data generated by the sound pickup device.

15. The recording method according to claim 1 , wherein the management information is updated, as needed, based on short-range wireless communications so that the management information maintains same content across the terminal devices.