Audio reproduction apparatus, method, computer program
First Claim
1. An audio reproduction apparatus suitable for use during sports training comprising:
- an input configured to receive an input audio signal;
a user behavior identification unit configured to derive a tempo output on a basis of a data signal;
an audio conditioning unit which generates an output audio signal dependent on the derived tempo output from the user behavior identification unit, the audio conditioning unit including;
a tempo calculation unit which calculates an input tempo of the input audio signal,an audio processing unit which constructs, based on the input audio signal, the output audio signal with an output tempo closer to the derived tempo than the input tempo, and with an output pitch substantially equal to an input pitch of the input audio signal, the audio processing unit constructing the output audio signal by;
starting with a substantially zero value output audio signal,selecting audio segments of consecutive samples of the audio input signal which meet an audio segment similarity criterion,weighting the selected audio segments;
adding the selected and weighted audio segments to the output audio signal at output time instances determined by a ratio between the selected tempo and the input tempo; and
an output configured to output the output audio signal.
1 Assignment
0 Petitions
Accused Products
Abstract
The audio reproduction apparatus (100) for sports training purposes comprises a tempo derivation unit (103) for deriving a selected tempo (T) on the basis of a data signal (d1, d2, d3) e.g. from a sports measurement device such as a heart rate meter; and an audio conditioning unit (104) arranged to deliver based on the input audio signal the output audio signal, with a tempo within a predefined accepted deviation from the selected tempo (T), whereby the audio conditioning unit (104) comprises a tempo calculation unit (106) arranged to calculate an input tempo (TI) of the input audio signal, and the audio conditioning unit (104) is arranged to deliver the output signal in dependence of the input tempo (TI).
89 Citations
20 Claims
-
1. An audio reproduction apparatus suitable for use during sports training comprising:
-
an input configured to receive an input audio signal; a user behavior identification unit configured to derive a tempo output on a basis of a data signal; an audio conditioning unit which generates an output audio signal dependent on the derived tempo output from the user behavior identification unit, the audio conditioning unit including; a tempo calculation unit which calculates an input tempo of the input audio signal, an audio processing unit which constructs, based on the input audio signal, the output audio signal with an output tempo closer to the derived tempo than the input tempo, and with an output pitch substantially equal to an input pitch of the input audio signal, the audio processing unit constructing the output audio signal by; starting with a substantially zero value output audio signal, selecting audio segments of consecutive samples of the audio input signal which meet an audio segment similarity criterion, weighting the selected audio segments; adding the selected and weighted audio segments to the output audio signal at output time instances determined by a ratio between the selected tempo and the input tempo; and an output configured to output the output audio signal. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. An audio reproduction apparatus for use during sports training, the audio reproduction apparatus comprising:
-
a tempo unit which generates a selected output tempo; an audio conditioning unit which generates an output audio signal, the audio conditioning unit including; a tempo calculation unit which calculates an input tempo of an input audio signal, a tempo comparing unit which compares the calculated input audio tempo and the selected output tempo, in response to the input audio tempo differing from the selected output tempo by more than a preselected threshold, the tempo comparing unit generates an output signal requesting a different audio input signal, an audio processing unit which modifies the input audio signal to have a tempo closer to the selected output tempo and with the modified input signal having a pitch substantially equal to a pitch of the input audio signal, the audio processing unit; dividing the input audio signal into audio segments, adjusting a temporal interval between adjacent audio segments to modify the input audio segment to assume a tempo closer to the selected tempo, repeating at least some of the audio segments modifying the tempo of the input audio signal to be closer to the selected output tempo; and
,an audio output by which the modified input audio signal is output as an output audio signal for a sound production means. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification