An audio synthesis method

Abstract

The invention discloses a kind of voice synthesizing method, which belongs to voice synthesizing field. The structure is simple, compact, and cost. The invention has following steps: 1) the voice code is transmitted to the voice synthesis event generating model by the voice analyzing model; 2) the parameter needed by the voice synthesizing is worked out by the voice synthesis event generating model; 3) the voice synthesis event generating model synthesizes a data block, namely event, and the event is transmitted to the event dispatching control model; 4) the dispatching control model allocates the events to a synthesizing channel of the voice signal generating; 5) the synthesis channel takes out the correspondent voice sample according to the parameter in the synthesis event, and the synthesis is completed by carrying on frequency and amplitude adjustment correspondent to the other parameter in the event.

Description

technical field [0001] The invention relates to the field of sound synthesis, in particular to a method for synthesizing different types of sound data. Background technique [0002] The sound files restored and reproduced by the sound synthesis system in the prior art mainly include the following three categories: [0003] Sound signal files, this type of file basically records the waveform data of the sound itself, and uses different encoding algorithms to process the original waveform data to reduce the file size. When restoring such sound files, use the corresponding decoding Converter to restore it to the original sound waveform data. MP3 is such a file, as attached figure 1 As shown, when synthesizing sound, the MP3 decoder decodes the MP3 data and restores it to PCM sound waveform data. If you need to change the sound waveform characteristics, such as: sampling rate, sampling accuracy, or add something similar to reverberation, etc. For special effects, other module...

AI Technical Summary

Problems solved by technology

[0006] In practical applications, it is difficult for a sound synthesis system to support the above three file formats at the same time. If it is necessary to support the above three file formats at the same time, there are generally two methods: the first is to use three independent systems to process the three files respectively format, the disadvantage of which is that the solution is not compact enough and also requires an additional system to coordinate the work of three different compositing systems

The second method is to design a system to fully realize the support for the three files. However, from the above discussion, it can be seen that the synthesis methods of the three files are very different. It is undoubtedly very complicated to implement such a system, and The scalability of the whole system is not strong, for example, if the system needs to support SMAF (SMAF is an accompanying file format, it contains not only music score data like MIDI, but also wave signal data like MP3 sound) , then the system needs to be modified

If the system is a chip, then there needs to be a CPU inside the chip, and other resources must be reserved for future expansion of the system, which is undoubtedly uneconomical

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