Impulse response collecting method, sound effect adding apparatus, and recording medium

A method for generating a reverberation response signal, the method comprising:

• generating a digital time stretched pulse (TSP) signal N times;
• converting the digital TSP signal to an analog input signal;
• creating a vibration signal from the analog input signal, wherein the vibration signal includes at least a left channel and a right channel;
• converting the vibration signal to a digital signal, including at least a left channel digital signal and a right channel digital signal;
• synchronously adding N output signals for each channel;
• converting the synchronously added signal to an impulse response signal for each channel, wherein the impulse response signal is representative of a reverberation response of an environment;
• and
• storing the impulse response signal from each channel to a recording medium.

An apparatus for recording a reverberation response signal, the apparatus comprising:

• a signal generator that generates a digital time stretched pulse (TSP) signal N times;
• a digital-to-analog converter connected to the signal generator;
• a vibration signal generator connected to the digital-to-analog converter, and generating at least a left channel signal and a right channel signal;
• an analog-to-digital converter connected to the at least left channel and right channel signals;
• an adder connected to the analog-to-digital converter to synchronously add N output signals for each channel;
• an impulse response signal converter connected to the adder to convert the synchronously added signals for each channel into an impulse response signal for each channel wherein the impulse response signal is representative of a reverberation response of an environment;
• and
• a storage medium to store the impulse response signal for each channel.