Skip to main content ↑ ↓

Notice

Please note that most of the software linked on this forum is likely to be safe to use. If you are unsure, feel free to ask in the relevant topics, or send a private message to an administrator or moderator. To help curb the problems of false positives, or in the event that you do find actual malware, you can contribute through the article linked here.
Topic: CBR AAC Encoder (Read 6609 times) previous topic - next topic
0 Members and 1 Guest are viewing this topic.

Re: CBR AAC Encoder

Reply #50 –
Using wrong tool for the job. Use sox for the job, then pipe the result to encoder of your choice.
TAPE LOADING ERROR

Re: CBR AAC Encoder

Reply #51 –
Quote from: itisljar on
Using wrong tool for the job. Use sox for the job, then pipe the result to encoder of your choice.

@itisljar You recommend me using sox for which part of the job? If you mean the cutoff point, I can't get a higher cutoff point this way (I need it for some specific bitrates).

Re: CBR AAC Encoder

Reply #52 –
Quote from: Klymins on
I don't want to use that low cutoff, this is just for testing): qaac -c 24 -r 22050 --lowpass 2000 sh44m.wav

Code: [Select]
L:\test>qaac64.exe --ignorelength --no-optimize -c 24 -r 22050 --lowpass 2000 "L:\test\Bird.wav"
qaac 2.82, CoreAudioToolbox 7.10.9.0

Bird.m4a
44100Hz -> 22050Hz
AAC-LC Encoder, CBR 24kbps, Quality 96
[100.0%] 0:29.789/0:29.789 (211.3x), ETA 0:00.000
656861/656861 samples processed in 0:00.141
Overall bitrate: 24.0019kbps
X
korth

Re: CBR AAC Encoder

Reply #53 –
Quote from: Klymins on
@itisljar You recommend me using sox for which part of the job? If you mean the cutoff point, I can't get a higher cutoff point this way (I need it for some specific bitrates).

I don't understand. You do this:
sox input.wav output.wav lowpass 3300 rate 22050

Afterwards, encode the audio with encoder of your choice.
You can tweak lowpass filter with sinc to get more precise lowpass controls.
TAPE LOADING ERROR

Re: CBR AAC Encoder

Reply #54 –
Quote from: korth on
Quote from: Klymins on
I don't want to use that low cutoff, this is just for testing): qaac -c 24 -r 22050 --lowpass 2000 sh44m.wav

Code: [Select]
L:\test>qaac64.exe --ignorelength --no-optimize -c 24 -r 22050 --lowpass 2000 "L:\test\Bird.wav"
qaac 2.82, CoreAudioToolbox 7.10.9.0

Bird.m4a
44100Hz -> 22050Hz
AAC-LC Encoder, CBR 24kbps, Quality 96
[100.0%] 0:29.789/0:29.789 (211.3x), ETA 0:00.000
656861/656861 samples processed in 0:00.141
Overall bitrate: 24.0019kbps
[attach type=image]32551[/attach]
I still can't get a lower cutoff with theses two additional commands, should I use the 64-bit version?

Quote from: itisljar on
Quote from: Klymins on
@itisljar You recommend me using sox for which part of the job? If you mean the cutoff point, I can't get a higher cutoff point this way (I need it for some specific bitrates).

I don't understand. You do this:
sox input.wav output.wav lowpass 3300 rate 22050

Afterwards, encode the audio with encoder of your choice.
You can tweak lowpass filter with sinc to get more precise lowpass controls.
I won't be able to get a higher cutoff point with this method, am I wrong?

Re: CBR AAC Encoder

Reply #55 –
Quote from: Klymins on
I still can't get a lower cutoff with theses two additional commands, should I use the 64-bit version?
Those were settings already in my script. Shouldn't make a difference.

korth

Re: CBR AAC Encoder

Reply #57 –
Shouldn't make a difference
korth

Re: CBR AAC Encoder

Reply #59 –
Quote from: Klymins on
I won't be able to get a higher cutoff point with this method, am I wrong?

As long as you're below half of needed sampling rate. For 22050 that's 11024. You can cutoff wherever you are.
Later on, encode it.
TAPE LOADING ERROR

Re: CBR AAC Encoder

Reply #62 –
Test and see. You've gotten a lot of information.
TAPE LOADING ERROR