VoiceConverter.mm

//
//  VoiceConverter.m
//  Jeans
//
//  Created by Jeans Huang on 12-7-22.
//  Copyright (c) 2012年 __MyCompanyName__. All rights reserved.
//

#import "VoiceConverter.h"
//#import "interf_dec.h"
//#import "dec_if.h"
//#import "interf_enc.h"
#import "amrFileCodec.h"


@implementation VoiceConverter

//转换amr到wav
+ (int)ConvertAmrToWav:(NSString *)aAmrPath wavSavePath:(NSString *)aSavePath{
    
    if (! DecodeAMRFileToWAVEFile([aAmrPath cStringUsingEncoding:NSASCIIStringEncoding], [aSavePath cStringUsingEncoding:NSASCIIStringEncoding]))
        return 0;
    
    return 1;
}

//转换wav到amr
+ (int)ConvertWavToAmr:(NSString *)aWavPath amrSavePath:(NSString *)aSavePath{
    
    if (! EncodeWAVEFileToAMRFile([aWavPath cStringUsingEncoding:NSASCIIStringEncoding], [aSavePath cStringUsingEncoding:NSASCIIStringEncoding], 1, 16))
        return 0;
    
    return 1;
}

//获取录音设置
+ (NSDictionary*)GetAudioRecorderSettingDict{
    NSDictionary *recordSetting = [[NSDictionary alloc] initWithObjectsAndKeys:
                                   [NSNumber numberWithFloat: 8000.0],AVSampleRateKey, //采样率
                                   [NSNumber numberWithInt: kAudioFormatLinearPCM],AVFormatIDKey,
                                   [NSNumber numberWithInt:16],AVLinearPCMBitDepthKey,//采样位数 默认 16
                                   [NSNumber numberWithInt: 1], AVNumberOfChannelsKey,//通道的数目
                                   //[NSNumber numberWithBool:NO],AVLinearPCMIsBigEndianKey,//大端还是小端 是内存的组织方式
                                   //[NSNumber numberWithBool:NO],AVLinearPCMIsFloatKey,//采样信号是整数还是浮点数
                                   //[NSNumber numberWithInt: AVAudioQualityMedium],AVEncoderAudioQualityKey,//音频编码质量
                                   nil];
    return recordSetting;
}
    
@end