Acoustic impulse response simulation
At least one spoken utterance and a stored vehicle acoustic impulse response can be provided to a computing device. The computing device is programmed to provide at least one speech file based at least in part on the spoken utterance and the vehicle acoustic impulse response.
1. A system comprising a computing device that includes a processor and a memory, the memory storing instructions executable by the processor to:
perform a first convolution that includes convolving a spoken utterance with a second acoustic impulse response that is based on acoustic characteristics of a vehicle cabin;
receive output of a second convolution, of vehicle sounds retrieved from an electronic sound database with a first acoustic impulse response that is based on acoustic characteristics of a room, from a speaker in the room while recording the spoken utterance to generate output sounds that include the spoken utterance according to the first convolution; and
generate a speech file from the output sounds.
2. The system of claim 1 , wherein a source for the spoken utterance includes a database of recorded utterances.
3. The system of claim 2 , wherein the spoken utterance is provided as a digital sound file from the database of recorded utterances to the computing device.
4. The system of claim 1 , further comprising a microphone for receiving the at least one spoken utterance, wherein the at least one spoken utterance is provided to a microphone and converted to a digital sound file that is provided to the computing device.
5. The system of claim 4 , further comprising a head and torso simulator that is arranged to provide the at least one spoken utterance to the microphone.
6. The system of claim 1 , further comprising the electronic sounds database that stores the vehicle sounds, the vehicle sounds being sounds that were recorded during operation of a vehicle.
7. The system of claim 6 , further comprising a speaker for providing the recorded vehicle sounds.
8. The system of claim 1 , comprising at least one equalizer arranged to receive and adjust the at least one spoken utterance.
9. The system of claim 1 , the instructions further including instructions to, before generating the speech file from the output sounds, perform a third convolution that includes convolving the output sounds with a third acoustic impulse response that is based on acoustic characteristics of a microphone.
10. The system of claim 9 , wherein the third acoustic impulse response is a stored hands-free microphone impulse response.
11. A method, comprising:
performing a first convolution that includes convolving a spoken utterance with a second acoustic impulse response that is based on acoustic characteristics of a vehicle cabin;
receiving output of a second convolution, of vehicle sounds retrieved from an electronic sound database with a first acoustic impulse response that is based on acoustic characteristics of a room, from a speaker in the room while recording the spoken utterance to generate output sounds that include the spoken utterance according to the first convolution; and
generating a speech file from the output sounds.
12. The method of claim 11 , wherein a source for the spoken utterance includes a database of recorded utterances.
13. The method of claim 12 , further comprising providing the spoken utterance as a digital sound file from the database of recorded utterances to the computing device.
14. The method of claim 11 , further comprising using a microphone for receiving the at least one spoken utterance, wherein the at least one spoken utterance is provided to a microphone and converted to a digital sound file that is provided to the computing device.
15. The method of claim 14 , further comprising providing a head and torso simulator that is arranged to provide the at least one spoken utterance to the microphone.
16. The method of claim 11 , wherein the vehicle sounds were recorded during operation of a vehicle.
17. The method of claim 16 , further comprising providing the recorded vehicle sounds from a speaker.
18. The method of claim 11 , further comprising, before generating the speech files from the output sounds, performing a third convolution that includes convolving the output sounds with a third acoustic impulse response that is based on acoustic characteristics of a microphone.
19. The method of claim 18 , wherein the third acoustic impulse response is a stored hands-free microphone impulse response.
20. The method of claim 11 , further comprising providing at least one equalizer arranged to receive and adjust the at least one spoken utterance.